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TRANSCRIPT
Compressor Controller MAM – 860
OPERATION MANUAL
Revision 1.0
04.08.2017
04.08.2017 Operation Manual MAM - 860 V1.0 - 2 -
Notice
Please read all the operation manual before operating the set and keep this manual for further reference.
Installation of MAM—8** compressor controller can be performed only by professional technicians.
RC snubber must be connected to the two terminals of coil (such as AC contactor, valve, etc),which are
controlled by relay output.
Port connection shall be inspected carefully before power on.
PARAMETER is not allowed to be modified in running and stop delay status. Only user parameter is allowed to be changed at running status
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Contents 1 Basic Operation ................................................................................................................................................... - 4 -
1.1 Button Explanation .................................................................................................................................. - 4 - 1.2 Indicator Instruction ................................................................................................................................ - 5 - 1.3 Status Display and Operation ................................................................................................................... - 6 - 1.4 Operating Parameter and Menu: ............................................................................................................. - 6 - 1.5 User Parameter View and Modification: ................................................................................................. - 7 - 1.6 User Parameter: ....................................................................................................................................... - 9 - 1.7 Factory Parameter: ................................................................................................................................ - 11 - 1.8 Calibration Parameter ............................................................................................................................ - 12 - 1.9 Operating Authorization and Password ................................................................................................. - 13 -
2 Controller Function and Technical Parameter .................................................................................................. - 13 - 3 Model and specification .................................................................................................................................... - 14 - 4 Overview .......................................................................................................................................................... - 15 - 5 Control process ................................................................................................................................................. - 16 - 6 Alarm Function ................................................................................................................................................. - 18 - 7 Alarm Function ................................................................................................................................................. - 19 -
7.2 Protection of High Discharge Air Temperature ...................................................................................... - 19 - 7.3 Protection of Air Compressor Reversal .................................................................................................. - 19 - 7.4 Protection of High Pressure ................................................................................................................... - 19 - 7.5 Protection of Sensor Failure................................................................................................................... - 19 - 7.6 Low Temperature Protection ................................................................................................................. - 19 -
8 Troubleshooting ................................................................................................................................................ - 20 - 9 Sequence Mode Control and Network ............................................................................................................. - 22 -
9.1 Sequence mode control ......................................................................................................................... - 22 - 9.2 Sequence Mode Setting ......................................................................................................................... - 23 - 9.3 Start, stop sequence control: ................................................................................................................. - 24 - 9.4 Sequence Communication Receiving and Sending Message: ................................................................ - 24 - 9.5 Network ................................................................................................................................................. - 25 -
10 Copyright ........................................................................................................................................................ - 26 -
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1 Basic Operation
1.1 Button Explanation
Start Button:
When compressor is at stop status, press this button to start the compressor
When compressor is set as master (No.1) in block mode, press this button to start the compressor and
activate block mode function at the same time.
Stop Button:
When the compressor is at running status, press this button to stop the compressor
When compressor is set as master (No.1) in block mode, press this button to stop compressor and block
mode function as well
When compressor is at stop status, long press this button to display software edition
Set Button /Loading / unloading Button:
When the compressor is at running status, press this button to load, unload
When the compressor is at setting mode, press this button after modification to confirm and save the
modified data
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Move down button / Decreasing button:
When viewing the menu, press this button to move downward the cursor
When modifying data, press this button to decrease the data at current position
Move up button/Increasing button:
When viewing the menu, press this button to move upward the cursor
When modifying data, press this button to increase the data at current position
Shift button /Enter button:
When modifying data, press this button to move to the next data bit
When select menu, press this button to switch to submenu. If no submenu available, the controller will
shift to data setting mode.
Return button / Reset button: When modifying data, press this button to exist data setting mode;
When viewing the menu, press this button to return to previous-menu;
When the controller is at failure stop status, long press this button to reset.
1.2 Indicator Instruction
Power Indicator: Indicator on when controller is energized. Run indicator: Indicator is on when motor is running. Alarm indicator: Indicator is blinking when alarming; indicator on when fail to stop; indicator off when
error is cleared
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1.3 Status Display and Operation
The display screen will show as below after power on:
After 5 seconds, the menu will switch as below:
Press to enter into selection menu:
1.4 Operating Parameter and Menu:
Press or to move the cursor to “RUN PARAMETER”, then press to switch to secondary
menu:
Press to check MOTORS CURRENT, TOTAL RUN TIME, TOTAL LOAD TIME, and other running parameter.
Press to return to the previous menu or main menu. If no operation in certain menu for 60s, machine
will return to the main menu automatically.
WELCOME USING
SCREW COMPRESSOR
AIR T: 78°C
AIR P: 0.53MPa
NORMAL STOP 0S
C16 REMOTE
MOTOR、FAN CURRENT
TOTAL RUN TIME
THIS RUN TIME
MAINTAIN PARAMETER
RUN PARAMETER
USER PARAMETER
FACTORY PARAMETER
CALBR PARMETER
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1.5 User Parameter View and Modification:
USER PARAMETER and FACTORY PARAMETER are not allowed to be modified in running and stop delay status.
In first menu press or to move the cursor to the “USER PARAMETER”.
Press to switch to the following menu
Move the cursor to the “SET P, T”, then press to switch to secondary menu
User can check the CUSTOMER PARAMETER in this menu or press to switch to the following menu which
requires a user password input
NOTE: Customer password can be set in CUSTOMER PARAMETER and is set as 1688.
SET P、T
SET TIME
OPERATION MODE
BLOCKING MODE
LOADING P: 0.8MPa
UNLOADING P: 0.6MPa
FAN START T: 80℃
FAN STOP T: 70℃
ENTER PASSWORD
****
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In this menu the first data bit of password blinking, press or to modify the first bit of password.
Press move the cursor to the next data bit, modify the second data bit of password in accordeance with the
above. Modify the the third and fourth data of password in sequence, press to confirm the input data and the
menu will switch to the following menu after verification.
The upper right corner
with “*” indicates the
system verification
of the password
In the menu above press , the first data of LOADING P start to blink, user can press or to modify the
present data in accordance with the above method. Press to move to next data bit and modify the target data in
sequence. When finished press to confirm and save the data. The controller prompt sends out a short sound to
tip the completion of parameter set.
Other CUSTOMER PARAMETER share the similar way for modification.
BLOCK LOAD P: 0.8MPa *
BLOCK UNLOAD P: 0.6MPa
FAN START T: 80℃
FAN STOP T: 70℃
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1.6 User Parameter:
First Submenu Second Submenu Preset Value Function
P, T SET
LOAD P 0,65 MPa
1. In AUTO LOADING status, compressor will load if pressure is below this set data 2. In STANDBY mode, compressor will start if the pressure below this set data
UNLOAD P 0,80 MPa
1. Compressor will unload automatically if air pressure is above this set data 2. This data should be set above LOADING P, also should be set below UNLD P LIM
FAN START 0080℃ Fan will start if AIR T is above this set data
FAN STOP 0070℃ Fan will stop if AIR T is below this set data
TIMER SET
MOTOR START 0010s
Set the HOST START TIME. Record time when motor is activated, controller will not start overload protection during this time to avoid impulse starting current stopping the motor.
FAN START 0005s Set the FAN START TIME. Record time when fan is activated, controller will not start overload protection during this time to avoid impulse starting current stopping the fan.
STAR DELAY 0005S Interval time from star start to delta start.
LOAD DELAY 0003S Unloading in this set time after enter delta running
EMPTY DELAY 0600S When unloading continuously, compressor will automatically stop and enter to standby status if over this set time
STOP DELAY 0030S For NORMAL STOP operation, compressor will stop after it continuously unloading over this set time
START DELAY 0030S Machine cannot be restarted before this set time (stop and over time load free stop till this time)
OPERATION MODE PRESET
RUN MODE LOCAL / REMOTE
LOCAL: only the button on the controller can turn on and turn off the machine. REMOTE: both the button on the controller and the remote control button can turn on and turn off the machine;
LOAD MODE AUTO/ MANUAL
MANUAL: only when the pressure is above Unload P, compressor will unload automatically .For any other case ,the Load/Unload function can only be executed by pressing “load/unload” key. AUTOMATICAL: the load/unload function can be executed by the fluctuation of AIR P automatically
COM MODE MODBUS SEQ BAN
BAN: communication function is not activated. MODBUS: compressor can communicate with computer or DCS as slave according to MODBUS-RTU. SEQ: compressors can work in a net
COM ADD 0255 Communication address
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SEQUENCE PARA SETTING
SEQ STATE HOST/ SLAVE
1. When service as master in SEQUENCE, master controls slave; the COM ADD should be set as No.1 2. When service as slave in SEQ, slave is controlled by master
TURN TIME 99 Hours
When master pressure is between SEQ LOAD P and SEQ UNLD P, master determines slave to work alternatively after working over this set time
SEQ NUMBER 0016 Number of air compressors in block net
SEQ LOAD 1.36MPa In SEQ mode, one compressor will start or load when master AIR P is below this set data
SEQ UNL. 1.36MPa In SEQ mode, one compressor will stop or unload when master AIR P is above this set data
SEQ DELAY 200S In SEQ mode, when master sends two commands continuously, second command signal delays for this set data
CLR LIFE TIME
OIL FILTER 0000H Record total running time of OIL filter. If changing new oil filter, the data should be reset by manual operation.
O/A FILTER 0000H Record total running time of O/A separator. If changing new O/A separator, the data should be reset by manual operation.
AIR FILTER 0000H Record total running time of AIR filter. If changing new AIR filter, the data should be reset by manual operation.
LUBE 0000H Record total running time of LUBE. If changing lubricate, the data should be reset by manual operation.
GREASE 0000H Record total running time of GREASE. If changing new grease, the data should be reset by manual operation.
BELT 0000H Record total running time of BELT. If changing new belt, the data should be reset by manual operation.
MAX LIFE TIME PRESET
OIL FILTER 0500H
1, Alarm prompt when total running time of oil filter is above the set data . 2, Set this data to “0000”, alarm function for oil filter running time is not activated
O/A FILTER 3000H
1, Alarm prompt when total running time of O/A separator is above the set data. 2, Set this data to “0000”, alarm function for O/A separator running time is not activated
AIR FILTER 0500H
1, Alarm prompt when total running time of air filter is above the set data. 2, Set this data to “0000”, alarm function for air filter running time is not activated
LUBE 0500H
1, Alarm prompt when total running time of lubricant is above the set data. 2, Set this data to “0000”, alarm function for lubricant running time is not activated.
GREASE 3000H
1, Alarm prompt when total running time of grease is above the set data. 2, Set this data to “0”, alarm function for grease running time is not activated
BELT 3000H
1, Alarm prompt when total running time of belt is above the set data. 2, Set this data to “0”, alarm function for grease running time is not activated
LAN. SEL English Change the display language.
User password modification
****
User could modify the user password by old user password or factory password
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1.7 Factory Parameter:
The view and modification of factory parameter requires a factory password, The modification step is same as
customer parameter modification. Main function is as below.
Menu Initial Data Function
MOTOR CUR Maximum motor overload data /1.2
When the current of motor is more than 1.2 times of the set data , the unit will stop for overload feature. (see table2.1.1)
FAN CUR Maximum fan overload data/1.2
When the current of fan is more than 1.2 times of the set data , the unit will stop for overload feature.
ALARM T. 105℃ When discharge air temperature reaches this set data, compressor will alarm
STOP T. 110℃ When discharge air temperature reaches this set data, compressor will alarm and stop
STOP P. 0.90MPa When pressure reaches this set data ,compressor will alarm and stop
MAX U.L. 0.80MPa This data is the maximum of UNLOADING P. The UNLOADING P in the customer parameter must be set no higher than this data.
RUN TIME 000100Hours Modify the TOTAL RUN TIME
LOAD TIME 000095Hours Modify the TOTAL LOAD TIME
CLR FAULT **** Input the password 8888 and press “set “button to clear all the history failure record.
CUR UN.BAL. 0006 MAX-MIN >= SET*MIN/10, respond time is 5s If the set data ≥ 15, the unbalance protection will be invalid.
LACK PAHSE 002.0s If OPEN PHASE protection ≥20 seconds, OPEN PHASE protection is invalid
DATA ****-**-** Production date
SERIAL ******** Product serial No.
PHASE PRO. ON/OFF ON: turn on phase sequence protection OFF: turn off phase sequence protection
FRE. SEL 50HZ/60HZ Set the operation power frequency
SEQ MODE ADV/COMP Set as compatible mode, block mode is the same as the other series. When block control with MAM 8*0 controller and set as advanced mode, more block mode function is available
HIGH VOL. 0460V 1. Controller detects the voltage higher than this set data, the shutdown protection starts and reports HIGH VOL. 2. Set this data to 0000, the HIGH VOL. protection function is invalid
LOW VOL. 0320V 1. Controller detects the voltage lower than this set data, shutdown protection starts and reports LOW VOL. 2. Set this data to 0000, the LOW VOL. protection function is invalid
LOW T PRO- -0018℃
1. In stop mode, air compressor is not allowed to start when discharge air temperature is lower than this set data 2. Two minutes after turn on, when the air temperature is below this data, compressor will stop and display T SENSOR FAULT
TIME LIM 0000H
1. When the compressor is in a stop status and the TOTAL RUN TIME exceeds this TIME LIM set, the controller will stop the compressor and display USER MISTAKE; 2. If this data is set to ‘0000’, TIME LIMIT function is invalid.
ALM STOP 0010H Controller detects oil filter, O/A separator, air filter, lubricate oil, grease and belt running with alarming over this ALARM STOP set, compressor will stop and report ”ALARM LONG STOP ”
COM SET PARA ON/OFF
1. When set as ON, User can use DCS to set data through MODBUS protocol 2. When set as OFF, User cannot use DCS to set data through MODBUS protocol 3, User can use DCS to set data only when compressor is at stop status
PARA1 **** User could modify the factory password by old factory password.
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PRES UNIT MPA BAR PSI
Change the pressure unit
TEMP UNIT °F °C
Change the temperature unit
1.8 Calibration Parameter
You can set relative data of controller in CALBR PARA. It is not allowed to view and modify without manufacturers
authorization, so please verify the password before view and modification. The modification of CALBR PARA is similar
with CUSTOMER PARA. Main function is shown as below.
Menu Initial Value Function
MOTOR A
TARGET CUR 0000 Enter the current value, the controller will detect user input value divided by the current to the current value, calculate the current coefficient
COEF 1.000 Calibration current, the input coefficients. Controller displays the current value = sample value × COEF
CUR ***.*A Displays the current controller sampling current values. This value is the real value and cannot be set.
MOTOR B
TARGET CUR 0000 Enter the current value, the controller will detect user input value divided by the current to the current value, calculate the current coefficient
COEF 1.000 Calibration current, the input coefficients. Controller displays the current value = sample value × COEF
CUR ***.*A Displays the current controller sampling current values. This value is the real value and cannot be set.
MOTOR C
TARGET CUR 0000 Enter the current value, the controller will detect user input value divided by the current to the current value, calculate the current coefficient
COEF 1.000 Calibration current, the input coefficients. Controller displays the current value = sample value × COEF
CUR ***.*A Displays the current controller sampling current values. This value is the real value and cannot be set.
FAN A
TARGET CUR 0000 Enter the current value, the controller will detect user input value divided by the current to the current value, calculate the current coefficient
COEF 1.000 Calibration current, the input coefficients. Controller displays the current value = sample value × COEF
CUR ***.*A Displays the current controller sampling current values. This value is the real value and cannot be set.
FAN B
TARGET CUR 0000 Enter the current value, the controller will detect user input value divided by the current to the current value, calculate the current coefficient
COEF 1.000 Calibration current, the input coefficients. Controller displays the current value = sample value × COEF
CUR ***.*A Displays the current controller sampling current values. This value is the real value and can not be set.
FAN C
TARGET CUR 0000 Enter the current value, the controller will detect user input value divided by the current to the current value, calculate the current coefficient
COEF 1.000 Calibration current, the input coefficients. Controller displays the current value = sample value × COEF
CUR ***.*A Displays the current controller sampling current values. This value is the real value and cannot be set.
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1.9 Operating Authorization and Password
Controller provides multiple passwords and access management. According to different levels of passwords, controller
provides different levels of operating authorization. Details are as following:
Customer Password: factory set ____________
Permissions: Allows to modify all Customer Parameter
Factory Password: fixed ____________
Permissions: Allows user to modify all Parameter
Calibrate Password: fixed ____________
Permissions: Allows user to modify CALBR PARAMETER
2 Controller Function and Technical Parameter
Phase sequence protection:
When compressor is at stop mode an detects open phase, response time <2ms
Open phase protection
When any phase opens, the response time equals to set time: This fuinction is not activated when OPEN
PHASE PROTECTION time is set over 20s
Motor protection: This control unit has the following 5 basic protection functions to the motor and fan.
o Rotor lock protection: After the starting oft he motor, if the working current reaches 4 or 8 times oft he
set value, the protection activates. The activate time is less than 0,2s.
o Short circuit protection: If the detected current reaches 8times or more above the set value, the
protection activates, the activate time is less then 0,2s
o Lack phase protection: Any oft the phase lack, the protection activates and theactivate time ist he
setting time
o Unbalance protection: The current difference between any of the two phases reaches the percentage
of the setting value, the protection activates and the activate time is less than 5s.
o Protection features of overload, please see following table for your reference. Multiple=Iactual/Iset ,
response time is shown in following table according to overload multiples from 1.2 times an
3.0times.
Iact/I set Time Para
≥1.2 ≥1.3 ≥1.5 ≥1.6 ≥2.0 ≥3.0
response time (s) 60 48 24 8 5 1
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3 Model and specification
Main controller model description
MAM - 860 (B)(T) (V)(40) Max work current match with motor
With voltage detection & protection
RS485 communication
Pressure converter
860 controller
Products Series
Power consumption table for corresponding motor
Parameter Spec. Current Range
(A)
Adopted Host Motor Power
(KW) Remarks Descriptions
MAM—KY02S(20) 8~20 4~10
Fan has three levels of current. Such as 0.2-2.5A, 1-5A and 4-10A, determined by current of motor.
MAM—KY02S(40) 16~40 8~20 MAM—KY02S(100) 30~100 15~50 MAM—KY02S(200) 80~200 40~100 MAM—KY02S(400) 160~400 80~200 MAM—KY02S(600/5) 100~600 50~300
Connect to CT
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4 Overview
△
1211
CT1
C
B
A
c
b
10
98
76
54
32
192021
CT2
a
31
30
29
28
27
262
52
42
32
2
FG
1
A
BRS-485
C1
、
ub uauc
13 14 15 16 17 18
Figure 4.2.1 Terminal arrangement diagram
Cable connection of controller:
1 Common terminal for digital input 2 Input terminal for emergency stop signal
3 Input terminal for remote control signal ( on/off )
4 Input terminal used to detect oil filter
5 N/A 6 RS485+
7 RS485- 8 Terminal for ground connection 9 Terminal for the AC20V power source
10 Terminal for the AC20V power source
11 N/A 12 N/A
13 Common terminal for digital output
14 Terminal to control fan 15 Terminal to control load valve
16 Terminal to control delta contactor
17 Terminal to control star contactor 18 Terminal to control main contactor
19 Input terminal to detect the phase sequence and voltage
20 Input terminal to detect the phase sequence and voltage
21 Input terminal to detect the phase sequence and voltage
22 Power terminal for pressure sensor
23 Input terminal to receive pressure sensor signal
24 Terminal for motor CT1 input
25 Terminal for motor CT1 input 26 Terminal for motor CT1 input 27 Terminal for fan CT2 input 28 Terminal for fan CT2 input 29 Terminals for fan CT2 input 30 Terminal for discharge air
temperature sensor 31 Terminal for discharge air
temperature sensor
Attention: The magnetic coil must be connected to the surging absorber when wiring
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5 Control Process
Single Machine
Working principle (On/off mode: Local; Load mode: Auto)
①、 Press to start: (Y-△start)
The air compressor can not be started by pressing until 5 seconds self checking finished.
The start process of compressor is as followed: 18 terminal closed, KM2 is energized; 17 terminal
closed, KM3 is energized → Y start → STAR DELAY me starts record; when Y-△transfer time
over,17 terminal open, KM3 is de-energized and 16 terminal closed, KM1 is energized → motor
operates in △. (KM1 and KM3 are interlocked)
②、 Automatic operation control: 2.1: When motor enter delta status, LOAD DELAY starts, controller will load automatically after
LOAD DELAY.
2.2: If air pressure is detected higher than UNLOADING P set, 15 terminal opens, loading valve is
de-energized, and air compressor starts unloading, and also starts EMPTY DELAY time record,
if unloading time exceed EMPTY DELAY set, compressor will enter STANDBY mode; if
compressor loading again within “EMPTY DELAY” set (when pressure is below LOADING P or
receiving load command), compressor will reset “EMPTY DELAY”.
2.3: In STANDBY mode, controller start automatically if pressure detected is below LOADING P
③、 Manual loading/unloading operation under automatic status 3.1 When air pressure is between LOADING P and UNLOADING P, press “loading/ unloading” to
switch the current status of controller.
3.2 When air pressure is above the UNLOADING P, controller unloads automatically, the
loading/unloading button is invalid
3.3 When air pressure is below the UNLOADING P, controller loads automatically, the
loading/unloading button is invalid
④、 Normal stop:
Press , the loading magnetic valve will be de-energized, after a while of delay (stop delay),
all output relay stop working.
⑤、 The frequent starting control Air compressor can not start again immediately after NORMAL STOP, EMPTY LONG STOP or
FAILURE STOP. It can start again after START DELAY.
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Remote Automatic Control (Control Mode: Remote; Load Mode: Auto)
In this mode, compressor can be turned on or off by remote control.
Local Control (Control Mode: Local, Load Mode: Manual)
a. Control of start and stop are same as automatic control, but device is in status of unloading after
finish starting process.
b. In unload status, press to load. When air pressure is higher than UNLOADING P set, the
device will unload automatically.
c. If not press ,the device will run unload until EMPTY DELAY.
d. In load status, press to unload.
Net Work
a. Controller works as slave when communication mode is set as “MODBUS”, and communicates
with monitoring center through MODBUS.
b. Controller and other controller can block work when communication mode is set “SEQ” but the
master only can service as 1# compressor.
Fan Operation
When discharge air temperature is higher than FAN START T, fan operates; when discharge air
temperature is lower than FAN STOP T, fan stops.
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6 Alarm Function
6.1 Monitor text
6.1.1 Air filter alarm
1. Use switching signal to detect alarm
The monitor displays AIR FILTER BLOCK by checking air filter differential pressure switch
2. Set AIR filter max. time
The monitor displays AIR LIFE END when the run time of air filter exhausts
6.1.2 Oil filter alarm
1. Use switching signal to detect alarm
The monitor displays OIL FILTER BLOCK by checking oil filter differential pressure switch
2. Set OIL filter max. time
The monitor displays OIL LIFE END when the run time of the oil filter exhausts
6.1.3 O/A alarm
1. Use switching signal to detect alarm
The monitor displays O/A BLOCK by checking O/A filter differential pressure switch
2. Set O/A max. time
The monitor displays O/A LIFE END when the run time of the O/A Separator exhausts
6.1.4 Lubricating oil alarm The monitor displays LUBE LIFE END when run time of lubrication oil exhausts
6.1.5 Grease alarm
The monitor displays GREASE LIFE END when run time of the grease exhausts
6.1.6 Belt alarm
The monitor displays BELT LIOFE END when the run time of Belt exhausts
6.1.7 High discharge air temperature alarm The monitor displays HIGH TEMPERATURE when controller detects the discharge air temperature is
higher than ALARM T set data in MANUFACTORY PARA
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7 Alarm Function
7.1 Motor Protection MAM-860 air compressor controller provides overload, open phase, current unbalance, high voltage, low
voltage protection for motor and overload protection for fan.
Electronic Failure Failure Display Reason
Overload Display “MOTOR/FAN OVERLOAD” Overload, bearing wear and other mechanical failure
Open phase Display “MOTOR OPEN PHASE” Power supply, contactor and open phase of motor
Unbalance Display “MOTOR UNBALANCE” Poor contact of contactor, inside open-loop of motor
High Voltage Display “HIGH VOLTAGE” High supply voltage
Low Voltage Display “LOW VOLTAGE” Low supply voltage
7.2 Protection of High Discharge Air Temperature
When discharge air temperature is above the high limit of set temperature, the controller will send out the
alarm to shut down the machine. This fault displays HIGH T.
7.3 Protection of Air Compressor Reversal
When compressor stops and three phases sequence is not in order, this fault displays PHASE REVERSAL,
and the controller cannot star the motor. It is needed to check and alternate any two of the phase
sequence and investigate the motor rotation direction.
7.4 Protection of High Pressure
When the AIR P is above the STOP P, the controller will send out the alarm to shut down the machine. This
fault displays HIGH P
7.5 Protection of Sensor Failure
When pressure sensor or temperature sensor is disconnected, the controller will send out the alarm to
shut down the machine and this fault displays **SENSOR FAULT
7.6 Low Temperature Protection
When discharge air temperature is below LOW T PRO in manufacturing parameter, this fault displays P
SENSOR FAULT two minutes after compressor turns on, the controller will send out the alarm to shut down
the machine.
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8 Troubleshooting
8.1 This fault review
Failure stop caused by the external parts of controllers may be removed by checking this fault or history
fault, method is shown as below.
Press or to move the cursor to “RUN PARAMETER”, then press to switch to secondary
menu
Press to move the cursor to “CURRENT FAULT”
Then press to reach the following failure cause:
Check the temperature sensor to confirm if there is any line broken or damage.
MOTOR、FAN CURRENT
TOTAL RUN TIME
THIS RUN TIME
MAINTAIN PARAMETER
HISTORY FAULT
PROD. DATE/NUM
CURRENT FAULT
Temperature sensor Failure
170℃
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User can reset the error according to the following information: Failure Causes Measurement to take
AIR T HIGH Bad vent condition, Oil lacking etc. Check the vent condition and lubricant amount etc.
AIR T SENSOR FAULT Cable off or PT1OO damaged Checking the wiring and PT100
AIR P HIGH The pressure too high or the pressure sensor failure
Check the pressure and the pressure sensor
AIR P SENSOR FAULT Cable off, Sensor damaged or the cable connected reversed
Check the wiring and sensor transformer
LACK WATER Water Pressure switch damaged Check the water pressure switch
LACK PHASE Power phase lacking or the Contactor terminal damaged Check the power and contactors
OVERLOAD Voltage too low, tubes blocked, bearing wear off or other mechanical failure or wrong set data etc.
Check the set data, Voltage, bearings, tubes and other mechanical system.
UNBALANCE Power unbalance, contactor damaged or the internal open of the motor
Check the power, contactors and the motor
BLOCK Voltage too low, tubes blocked, bearing wear off or other mechanical failure or wrong set data etc.
Check the set data, Voltage, bearings, tubes and other mechanical system.
SHORT CIRCUIT Wrong cable connection, wrong set data
Checking the wiring and set the data correctly
WRONG PHASE SEQUENCE Reversed Phase sequence or phase off Check the wiring
Fan stopped Fan damaged, Contactor damaged, no control output
Check the wiring and control output
Overload or Rotor locking during starting process
Start time set too less than the star delta time delay
Reset the host starting time to be longer than star delta delay + load delay time
Main Contactor activate time to time
The emergency button loose Check the wiring
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9 Sequence Mode Control and Network
9.1 Sequence mode control
MAM-860 controller can operate with other MAM series compressor (with communication function). 16 pcs
compressors are allowed in the net at most. The cable connection for block mode is as below….
A B A B A B A B A B
Compressors with net communication address 0001 is master, others are slave. Any one MAM series compressors
can be set as master or slave
Master 1 Slave 2 Slave 3 Slave 4 Slave 16
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9.2 Sequence Mode Setting
9.2.1 Set as Master:
Press or to move the cursor to “USER PARAMETER”, then press to switch to the menu
below:
Move the cursor to the “OPERATION MODE”, then press to switch to the menu below.
Set “COM MODE” as SEQ
Set “COM ADD” as 0001
Return to the previous menu, move the cursor to “SEQ PARA SET” press to switch to the menu below.
According to user requirement, set SEQ STATE as Host, set TURN TIME, SEQ NUMBER, SEQ LOAD, SEQ
UNLOAD and SEQ DELAY according to user´s need.
Attention: After setting, controller needs to be powered off and restarts to the settings!
P, T SET
TIMER SET
OPERATION MODE
SEQ PARA. SET
RUN MODE: REMOTE
LOAD MODE: AUTO
COM MODE: SEQ
COM ADD: 0001
SEQ STATE: HOST
TURN TIME: 0099H
SEQ NUMBER: 0016
SEQ LOAD: 1,36MPa
SEQ UNLOAD: 1,36MPa
SEQ DELAY: 200s
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9.2.2 Set as Slave: When MAM controller serves as slave, it is only necessary to set COM MODE as SEQ. Set COM ADD from 2 –
16 with sequence according to the quantity of compressors, and SEQ STATE as SLAVE.
9.3 Start, stop sequence control:
Make sure sequence cables connect correctly and the parameter of compressors in net set correctly.
Activate master, master controls the compressors in Net automatically according to the air pressure
detected. Sequence control stops at the same time when manually stop the master. So master will no longer
send command to compressor in net.
9.4 Sequence Communication Receiving and Sending Message:
The message received and set by RS485 can be displayed by the corresponding indication screen which is
convenient for customer to make sure if they have received and feedback data in SEQ MODE or COM MODE.
The method to switch to communication menu is as below:
Press or in main menu and select “RUN PARAMETER” and move down the cursor to communication
menu. Press to switch to the menu below:
When controller receives data, RX “—“ and “*” display alternately. When sends data, TX “—“ and “*” display
alternately. When controller is in SEQ mode or communicates with monitoring center, user can confirm the
establishment of communication through this menu.
AIR T: 78°C ◊
AIR P: 0.53MPa
NORMAL STOP 0S
C16 REMOTE
◊: Blinking icon indicate
master has active seq
mode function
RX: ----
TX: ----
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9.5 Network
MAM-860 controller supports MODBUS RTU protocol and can serve as slave when connect with other equipment
and supports 03, 06, 16 MODBUS command.
Communication baud rate: 9600BPS
1 start bit
8 data bits
1 stop bit
even parity
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10 Copyright
This manual is protected by copyright and intended solely for internal use.
This manual must not be made available to third parties, duplicated in any manner or form – whether in whole or in
part – and the content must not be used and/or communicated, except for internal purposes, without the written
consent of the manufacturer. Violation of the copyright will result in legal action for damages. We reserve the right to
assert further claims.
Tolpec GmbH
Wertstrasse 44
D- 73240 Wendlingen
Telephone: +49 (0)7022 789 604-0
E-mail: contact@tolpec.com
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