8/12/2019 Datenblatt KEA 251ERSY Uk

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Control unit for emergency gensets

KEA 251 ERSY

Hardware

Operating panel

Measurement Sensors for mains and generator frequency 50 or 60 Hz,

can be set to any value between 40 and 70 Hz.

Sensors for mains and generator voltage, 3-phase,

100-500V, Accuracy class 1.

Generator current sensors 3-phase, Accuracy class 1. I

Nom5 A: measuring range 0,1 15 A,

can be set in increments of 20 mA.

1 battery voltage monitor 1 synchronisation unit with integrated check synchroniser

Digital outputs 3 relay outputs (n.o.), freely parameterisable, 24V 1A

Analogue in-/output

4 analogue inputs, can be equipped for: Sensors PT 100 / PT1000, 0-20 mA, 0-10V DC,NiCr-Ni type: K

Temperature and pressure sensor from VDO,

2 analogue outputs 0 20 mA or 0 10 V

Serial interfaces Parameters can be set via a fibre optics or USB interface

CAN bus interface to common control, FBED,

CAN bus interface to engine management

Relay card KRK-12

Equipped with: 14 terminals for alarm contacts,

of which 9 relays can be parameterised

1 input for pick-up

1 input for alternator D+ with pre-excitation for AC alternators, 14 general control inputs,

12 relays, contact load: 120 V AC, 0,5 A / 24V DC 1 A

enhancable with relay card KRK-27

Technical Data

Operating panel KEA

Device for panel mounting, with KRK-12 or KRK-27Dimensions (WxHxD): 260 x 170 x 125 mm,

Weight: approx. 2,6 kg, any installation position,

Protection type (built-in) IP 44

Relay card KRK-12 Relay card mounted in operating panel,

Dimensions (WxHxD): 300 x 45 x 90 mm

(with multiple adapter), Weight: approx. 0,3 kg, any installation position,

Protection type (built-in) IP 00

Relay card KRK-27 Relay card mounted in operating panel,

Dimensions (WxHxD): 300 x 45 x 90 mm,

Weight: approx. 0,5 kg, any installation position,Protection type (built-in) IP 00

General

Ambient temperature: Storage-20C ... +70C,

Operation 0C ... +55C, Supply voltage switchable

9-12-15V or

14-24-35V DC, Standards/regulations:

DIN EN 501780, VDS 2100-22.

General options

GSM Modem with antenna and cable 3 m for remote control

Connection to other systems, for example via Profibus DP,

Modbus or Ethernet Event recorder with protocol and fault printout

via an RS 232 interface

Additional relay card KRK-27:

27 relays on KRK-27, of which 23 can be parameterised,contact load: max. 250V AC, 1 A

CAN bus module (DIO and analogue) (in preparation)

General

The compact automatic control unit KEA 251 ERSY is used in emer-

gency power supply plants with/without overlapping synchronisation.

Fault signals, counter readings, analogue values and status signals arevisible on a display. 4 LED indicators can be used for the display of addi-

tional operation indicators. An additional relay card with 12 or 27 relays

is available for this control unit.The output relay function and the parameters can be set with a PC. As

the KEA 251 is the same size and is attached in the same manner as

its predecessors, it can be exchanged without difficulty. The automatic

control unit is simple to operate as it is operated by using the keys onthe control panel.

Alfred Kuhse GmbH Tel.: +49 4171 / 798-0 E-Mail: kuhse@kuhse.de Subject to modication

An der Kleinbahn 39 Fax: +49 4171 / 798-117 www.kuhse.de Datenblatt_KEA251ERSY_uk01

21423 Winsen, Germany State: 02/2014