square d® clipsal® four-channel 20 a din-rail relay · the 20 a relay units feature local...

Square D® Clipsal® Four-Channel 20 A DIN-Rail Relay SLC5504TRVF20, SLC5504TRVF20P, SLC5504HRVF20, SLC5504HRVF20P for Use with Wired C-Bus™ Networks

Instruction Bulletin Retain for future use.

Square D® Clipsal® Four-Channel 20 A DIN-Rail Relay 63249-420-242A1 Instruction Bulletin 09/2006

2 © 2006 Schneider Electric. All Rights Reserved.

HAZARD CATEGORIES AND SPECIAL SYMBOLS

Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service, or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.

The addition of either symbol to a “Danger” or “Warning” safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

Danger indicates an immediately hazardous situation which, if not avoided, will result in death or serious injury.

Warning indicates a potentially hazardous situation which, if not avoided, can result in death or serious injury.

Caution indicates a potentially hazardous situation which, if not avoided, can result in minor or moderate injury.

Caution, used without the safety alert symbol, indicates a potentially hazardous situation which, if not avoided, can result in property damage or improper operation.

NOTE: Provides additional information to clarify or simplify a procedure.

63249-420-242A1 Square D® Clipsal® Four-Channel 20 A DIN-Rail Relay 09/2006 Instruction Bulletin

© 2006 Schneider Electric. All Rights Reserved. 3

PLEASE NOTE

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. This document is not intended as an instruction manual for untrained persons. No responsibility is assumed by Square D for any consequences arising out of the use of this manual.

Class B FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.



INTRODUCTION

This bulletin provides instructions for installing the Square D® Clipsal® DIN-Rail 20 A Voltage-Free Four-Channel Relays, which are C-Bus output devices that provide four independent voltage-free relay contacts for general switching applications.

The relay units are 12M wide (1M = 0.69 in. [17.5 mm]) and designed to be mounted in a suitably rated DIN-style enclosure such as the Clipsal 36M enclosure. Built-in RJ-45 connectors enable quick connection to the C-Bus network and interconnection of units. The units can be configured by using the C-Bus Toolkit™ software or by using Learn mode.

These relays can be ordered with an internal C-Bus network power supply. When connected to an external power source, this type of unit (catalog numbers SLC5504TRVF20 and SLC5504HRVF20) can support a number of other C-Bus units by providing up to 200 mA to the network. The standard relay unit (catalog numbers SLC5504TRVF20P and SLC5504HRVF20P) does not provide power to the network, even when it is connected to an external power source.

Before You Begin

Before installing a relay unit, verify that your order is complete by comparing the contents of the package with the appropriate items in the table below. Also verify that the catalog number on the box label matches your order.

Table 1: Contents of the Box

Part Number Description Quantity

SLC5504TRVF20 SLC5504TRVF20P SLC5504HRVF20 SLC5504HRVF20P

Four-Channel Relay, 120 V AC, 20 A load per channel, with C-Bus network power supply Four-Channel Relay, 120 V AC, 20 A load per channel Four-Channel Relay, 277 V AC, 20 A load per channel, with C-Bus network power supply Four-Channel Relay,277 V AC, 20 A load per channel

1

Included with each unit Rubber RJ-45 terminal plugs 3

Included with each unit C-Bus network cable, 15.7 in. (400 mm) 1



COMPONENTS AND OPERATIONS

DIN-Rail 20 A Relays isolate electrical power from the Class 2 C-Bus network, and the voltage-free channels inside the units are not internally connected to any voltage source or to each other. Each of a unit's channels can handle 20 A of switched active load.

The 20 A relay units feature Local Override/Channel Control buttons and Manual Override slide switches for controlling individual relay channels, optional Remote Overrides (ON/OFF) for quick control of all the relay channels, and Status Indicators. Non-volatile memory stores the operating state in the event of a power outage, and the units can be configured over the C-Bus network. If necessary, the relays can support a simple C-Bus network by generating a network burden and a C-Bus system clock signal. The relay's features are described in the following sections.

Overrides

The figure "Override Options, 20 A Four-Channel Relays" shows the position of the Local Override buttons, the Manual Override slide switches, and the optional Remote Override (ON/OFF) connection (through the C-Bus RJ-45 connection ports).

Figure 1: Override Options, 20 A Four-Channel Relays

KEY:

A. Local Override/Channel Control buttons (1–4)

B. Remote Override/ C-Bus connections

C. Manual Override slide switches (1–4)



HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Overrides cannot be locked down and must not be used as the method to turn off the power before working on or inside the equipment—when overrides are used the power can be restored without warning.

• Turn off all electrical power supplying this equipment before working on or inside the equipment.

• Always use a properly rated voltage-sensing device to confirm that power is off. Failure to follow these instructions will result in death or serious injury.

Local Override/Channel Control Buttons

Local Override/Channel Control buttons (see figure “Override Options, 20 A Four-Channel Relays”) provide a way to temporarily change the state of each channel at the unit. Each button is a status indicator LED that is lit when the respective channel is ON. (Using the Local Override Button is often referred to as "toggling" the channel or unit "locally".)

By default, the Local Override buttons work opposite and in conjunction with other commands, such as those set through the Manual Override slide switches or C-Bus commands, with the most recent command taking precedence (see the NOTE on C-Bus command overrides below). For example, if a keypad button is ON, pressing the Local Override button for that same channel will turn OFF the related channel LED, Manual Override slide switch, and keypad button. At the same time, the Unit status indicator will start to flash. Flashing will continue until the Local Override has been turned off, either by giving the same Local Override button a "Double Press" or by pressing a key on the affected input unit (see table "Operation of the Local Override Buttons").

NOTE: By default, C-Bus commands will "override" changes to the operating state that have been made by pressing the Local Override buttons or the Manual Override slide switches. The C-Bus override can be disabled by using the C-Bus Toolkit software. For more information see the section "Operating Mode Priorities."



Table 2: Operation of the Local Override Buttons

Type of Press on Local Override Button

Function

Short press Changes state of that channel or unit ("toggles it"), e.g., from OFF to ON

Double press (two short presses within 2 seconds)

When a channel or unit is in Local Override mode, a double press returns it to control by the C-Bus network

Long press (a press longer than 2 seconds on any Local Override button)

When one or more channels or units are in Local Override mode, a long press will return them ALL to control by the C-Bus network

Manual Override Slide Switches

Manual Override slide switches (see figure “Override Options, 20 A Four-Channel Relays”) also provide a way to temporarily change the state of each channel at the unit. When a Manual Override slide switch is pushed up toward the top of the unit, that channel will be OFF. When the switch is pushed down toward the bottom of the unit, that channel will be ON.

Typically, the Manual Override slide switches reflect C-Bus or Local Override commands, moving up and down as channels are turned ON or OFF through C-Bus commands or Local Overrides. In addition, the Manual Override slide switches can be set by hand into a state opposite that set through C-Bus commands or Local Overrides. In such cases, the most recent command will take precedence (see the NOTE on C-Bus command overrides above).

Remote Overrides

The DIN-Rail Relay has provisions for connecting two remote switches that provide Remote Override ON and OFF functions. Activation of the remote inputs occurs when the switch mechanism contact closes.

NOTE: External voltage sources are not required and MUST NOT be connected to either of the relay's Remote Override inputs.

When one of the remote override inputs is activated, all the unit's channels will be set to either ON or OFF accordingly. If the Remote ON and Remote OFF functions are activated simultaneously, the Remote OFF has priority (see the table “Operating Mode Hierarchy”).



The remote switches can be located up to 3280 ft (1000 m) from the relay unit. Multiple switches can be connected in parallel to the same remote input, allowing remote control of the unit from different locations by using any type of cable (for wiring examples, see section “Remote Override Connections”). A single switch also can be used to remotely control up to 30 different units within the same C-Bus network.

NOTE: C-Bus is a balanced network, so C-Bus positive (+) must be present at any point where C-Bus negative (–) is taken. Therefore both network conductors [C-Bus positive (+) and C-Bus negative (–)] must be looped through all Remote Override input switches on the network.

Status Indicators

The front of the DIN-Rail Relay has two sets of status indicators: the Unit and C-Bus status indicator LEDs and the illuminated Local Override/Channel Control buttons (see figure "Status Indicators, 20 A Four-Channel Relays").

• Unit status indicator - shows the status of the individual unit.

• C-Bus status indicator - shows the status of the C-Bus network at this unit.

• Local Override/Channel Control buttons - show the status of the channel.

Figure 2: Status Indicators for 20 A Four-Channel Relay

KEY:

A. Unit

B. C-Bus

C. Local Override/Channel Control buttons

NOTE: The status indicator LEDs do not function when standalone programming is being performed on a unit powered by the C-Bus network.



Local Override/Channel Control Buttons

The Unit status indicator LED shows the status of the individual unit. When the Unit status indicator displays a continuous light (ON), it indicates that the unit is connected to a properly operating C-Bus network and an electrical (AC) power source. When the Unit status indicator flashes, it indicates that one or more channels have been toggled (using a Local Override button or a Remote Override) into a state different from that set through the C-Bus network (for more information, see the sections "Remote Overrides" and "Local Override Buttons").

Table 3: Unit Status Indicator Definitions

Indicator Status

Meaning

ON Normal operation

Flashing One or more channels have been overridden

OFF No external electrical power source. Indicator does not function if unit is powered only by C-Bus network, e.g., during configuration

C-Bus

This indicator shows the status of the C-Bus network at the unit. If sufficient network voltage and a valid C-Bus clock signal are present then the C-Bus status indicator will display a continuous light (ON). If a network is connected that has more current load than the power supplies can support, then this indicator will flash to show a marginal network voltage. If there is no C-Bus clock then this indicator will not light.

NOTE: The C-Bus indicator does not function when standalone programming is being performed on a unit powered by the C-Bus network.

Table 4: C-Bus Status Indicator Definitions

Indicator Status Meaning

ON Power on and functional

Flashing Insufficient power (<20 V DC) to support network

OFF No external electrical power source (<15 V DC). Indicator does not function if unit is powered only by C-Bus network, e.g., during configuration

No C-Bus clock signal present



Local Override/Channel Control

A Local Override/Channel Control button will be illuminated when its channel is ON, serving as a load indicator. The four Local Override buttons are used to change the status of (toggle) individual channels directly at the unit (see section “Local Override/Channel Control Buttons”).

Operating Mode Priorities

There are four ways to manually control loads that are connected to a DIN-Rail Relay:

• Press a button on a C-Bus input unit (e.g., a keypad button, a touch screen)

• Activate (press) any of the Local Override/Channel Control buttons

• Push the Manual Override slide switch up or down (ON or OFF)

• Use the Remote Overrides

NOTE: By default, a C-Bus command for any channel will override an existing Local Override mode or an existing Manual Override slide-switch setting. This feature can be disabled in the C-Bus Toolkit software (see section “Local Override Buttons”).

The table "Operating Mode Hierarchy" outlines the operating modes and their general precedence.

Table 5: Operating Mode Hierarchy

Mode Priority Function

Remote OFF 1 (Highest) Turns all channels OFF

Remote ON 2 Turns all channels ON

Local Override 3 Turns the affected channel or unit ON or OFF (opposite to the existing state imposed through the C-Bus and/or Manual Override)

Manual Override 3 Turns the affected channel or unit ON or OFF (opposite to the existing state imposed through the C-Bus)

C-Bus input unit (keypad, PIR, etc.)

3 Controls the channel and if there is a Local Override or Manual Override in effect, the C-Bus command will be imposed.



C-Bus Systems Support

Four-Channel 20 A DIN-Rail Relays incorporate a software-selectable C-Bus system clock and a software-selectable network burden, so they can support a simple C-Bus installation.

C-Bus System Clock

The C-Bus System Clock synchronizes data communications waveforms on the C-Bus network. Typically the clock is disabled: Only one active clock is required for successful C-Bus network communications, and a maximum of three C-Bus units per network should have the clock circuitry enabled. The section "Using a C-Bus Clock or Network Burden" explains how to enable a system clock.

Network Burden

One hardware or software network burden is required for network termination and biasing, but only one network burden should be installed per network. Use the C-Bus Toolkit software to determine if a specific network must have one installed. The section "Using a C-Bus Clock or Network Burden" explains how to enable and disable a burden.

Power Outage and Restoration

All C-Bus units have onboard non-volatile memory, which is used to store the operating state of the unit in case of a power outage. The 20 A Four-Channel Relay units incorporate latching relays and will retain their current output status if there is a loss of data communications. When communications or power is restored, the relay will initiate a brief power-up sequence. After that, the relay's status can be set through user-programmable options.

Standalone Configuration

The DIN-Rail Relay draws 18 mA from the C-Bus network when it is not connected to an external power source. This 18 mA makes it possible to configure the unit without a connection to an external power source.

NOTE: The relay and its status indicators will operate only when they have an external power source.

Requirements for configuring a unit without using an external power source include connection to an operational C-Bus network that is capable of supporting one or more extra C-Bus units (18 mA current required per relay). For more information about configuration requirements, see "Configuration" in the "Installation" section.



Compatibility

The DIN-Rail Relays are suitable for use with the following types of loads.

• Resistive loads

• Incandescent and halogen lamps

• Fluorescent lighting

• Low-voltage lighting with iron-core or electronic transformers

• Exhaust fans with shaded-pole induction motors

• Ceiling fans with split-phase induction motors



SAFETY PRECAUTIONS

This section contains important safety precautions that must be followed before attempting to install or maintain electrical equipment. Carefully read and follow the safety precautions below.


• This equipment must be installed and serviced by qualified electrical personnel.

• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E.


• Always use a properly rated voltage sensing device to confirm that power is off.

• Replace all devices, doors, and covers before turning on power to this equipment.

Failure to follow these instructions will result in death or serious injury.

Transient Voltage Surge Protection

Use this unit only within the limits of the design specifications. Each unit incorporates transient protection circuitry. Additional external power surge protection devices should be used to enhance system immunity to power surges. It is strongly recommended that appropriate transient voltage surge protection be installed at all service entrance equipment.



INSTALLATION

Follow the procedures in this section to properly install a 20 A DIN-Rail Relay.

Network Considerations

Determine the total network current load and verify that there will be adequate C-Bus power to support all the connected devices. Also verify that the amount of available power is no more than 2 A. Generally, one physical C-Bus network can have a maximum of 10 DIN units that incorporate a C-Bus power supply or 100 DIN units that do not. However, these limits will be affected by the design of the network, including the specific number and types of units on it.

The 20 A DIN-Rail Relay draws 18 mA from the C-Bus network when it is not connected to an external power source by the power terminals. When connected to an external power source, it draws no current from the C-Bus network. Additionally, when connected to an external power source, relay units that incorporate a C-Bus network power supply can provide up to 200 mA to the C-Bus network.

Configuration

Before a 20 A DIN-Rail Relay can operate on the C-Bus network, the C-Bus Toolkit software must be used to assign a unique identification (unit address) and mode of operation on the network. When the units are being installed as part of a large or complex network, it is most efficient to perform the basic configuration before the units are physically installed. However, the units can be configured before or after physical installation.

The following sections describe the components necessary for configuring a unit and basic instructions on using the C-Bus Toolkit software to enable and disable the network burden.

Prerequisites

Typically, the following components are required to configure a 20 A DIN-Rail Relay unit. (Specific items and product numbers can vary according to the network and type of C-Bus unit.)

• PC with the C-Bus Toolkit software installed

• DIN-Rail Relay unit to be configured (SLC5504TRVF20/TRVF20P/HRVF20/HRVF20P)

• C-Bus PC interface (SLC5500PC) or C-Bus Ethernet gateway (SLC5500CN)



Using a C-Bus Clock or Network Burden

The following sections describe how to enable a system clock, install a hardware burden, and enable and disable a network burden.

C-Bus Clock

If a system clock is required, it can be enabled from the "Global Tab" on the Graphical User Interface (GUI) for the unit.

Enabling the Network Burden

HAZARD OF IMPROPER OR UNSTABLE OPERATION

Networks require only one burden. Before enabling a network burden, use the graphical user interface (GUI) software to verify that the network does not already have one. Failure to follow this instruction can result in improper C-Bus network operation.

NOTE: The graphical user interface is designed to prevent the network burden from being accidentally enabled.

1. Start the C-Bus Toolkit software

2. If this is a new unit, add it to the network.

3. Double-click on the unit's name to open its graphical user interface (GUI).

4. In the Unit Identification page, set the Unit Address to "001."

5. Open the "Global" tab by clicking on it.

6. Examine the "Unit Options" section on the left side of the page.

a. If the box next to "Enable burden" has not been selected, go to Step 7 of these instructions.

If the box next to "Enable burden" has been selected, the network already has an enabled network burden. Before enabling this network burden, you should disable the current one (see the section "Disabling the Network Burden").

b.

7. If the box next to "Enable C-Bus clock" is empty, select (click in) it.



8. Select (click in) the box next to "Enable burden."

9. Click on the "OK" button or the "Apply" button.

10. When the "Save Location" dialog box opens, select "Save to Physical Unit" and/or "Save to Database."

11. Click on the "OK" button.

12. To ensure the change is saved, repeat the final steps within 20 seconds.

Disabling the Network Burden

1. Start the C-Bus Toolkit software.

2. Double-click on the unit's name to open its graphical user interface (GUI).

3. Open the "Global" tab by clicking on it.

4. Clear the box next to "Enable burden" by clicking in it.

5. Click on the "OK" button or the "Apply" button.

6. When the "Save Location" dialog box opens, select "Save to Physical Unit" and/or "Save to Database."

7. Click on the "OK" button.

8. To ensure the change is saved, repeat the final steps within 20 seconds.

Identifying the C-Bus Units and Their Locations

The location of each C-Bus unit must be tracked. Two recommended methods are given below, one for when the units are configured before installation (see section “Labeling the C-Bus Units”), the other for when the units are configured after installation (see section “Recording Each Unit’s Location”).

Labeling the C-Bus Units

When C-Bus units are configured before physical installation, it is important to label them to indicate where they are to be placed. One method for doing this would be to write each unit’s address directly on it.

NOTE: Verify that each configured unit has been marked to indicate where it should be placed in an enclosure or a building or site.



Recording Each Unit's Location

In order to track C-Bus units that will be configured after physical installation, they must be identified and their location must be recorded at the time they are installed.

NOTE: If a unit has already been configured and assigned a location on a site map, it is not necessary to make another record of its location.

HAZARD OF UNEXPECTED OR IMPROPER SYSTEM BEHAVIOR

• Properly record the physical location of each unit using the lift-and-peel label provided on the box and a site plan or location log.

• Retain location records and provide them to the person(s) responsible for configuring and commissioning the network.

Failure to follow these instructions can result in unexpected or improper system behavior.

Before installing a unit, use the following guidelines to record its location. Recording each unit's location is required for configuration with the C-Bus™ Toolkit software.

Each unit is identified by a unique serial number found on the box label (see the figure “Box Label with Lift-and-Peel Section”). The serial number provides important information for recording a unit's location.

Figure 3: Product Label with Lift-and-Peel Section

KEY:

A. Serial number

B. Bar code

C. Lift-and-peel section

The box label also has a bar code that can be read by an infrared scanner and used to make a record of a specific unit’s location. A “lift-and-peel” section of the box label duplicates the box label’s information, including the serial number and bar code (see “C” in the figure “Box Label with Lift-and-Peel Section”).



To record the location of a unit, remove the lift-and-peel section from the box label and attach it to a site plan or other document. The lift-and-peel section now provides a record of the physical location where that unit is installed. When multiple units of one kind are installed in an area or enclosure, such as six DIN dimmers in an enclosure, verify that the document or site plan indicates the relative position of each specific unit.

Mounting the DIN-Rail Unit onto the DIN Rail

The DIN-rail units are designed to be installed onto a standard 1.38 in. (35 mm) DIN rail. To mount (i.e., attach) the DIN unit, hook it onto the top of the DIN rail. Swing the bottom of the unit down until it clicks into place.

Figure 4: Mounting the Unit onto the DIN Rail

KEY:

A. DIN rail B. DIN-rail unit

1. Hook the unit onto the top of the DIN rail 2. Swing the bottom of the unit down3. Mounted unit

Removing the DIN-Rail Unit from the DIN Rail

Use a small flat-blade screwdriver to pull either the upper or lower slide release out and disengage the unit from the DIN rail.

Figure 5: Removing the Unit from the DIN Rail

KEY:

A. DIN rail B. Unit

1. Pull out the slide release 2. Pull the unit away from the DIN rail 3. Lift the unit away from the rail



Electrical Wiring Connections

Follow the provided safety precautions and guidelines when making electrical connections.



• Always use a properly rated voltage sensing device to confirm that power is off.

• Replace all devices, doors, and covers before turning on power to this equipment.

Failure to follow these instructions will result in death or serious injury.



Wiring Guidelines

The 20 A DIN-Rail Relay units can handle four channels of 20 A switched active loads, except for fan motors (see table “Load Ratings, 20 A DIN Relays”). Multiple relay channels can be connected to the same supply circuit, or a relay channel can be connected to an individual supply circuit. The requirements of a particular application will dictate the best approach for wiring a relay channel.

Consider the total current consumption when designing the supply circuit and selecting cables. Also verify that the load supply has been protected by an appropriately rated circuit breaker.

• Verify that the power supplying the system is turned OFF before handling electrical power conductors.

• Observe national and local electrical codes.

• Follow the wiring diagram shown in the figure "Electrical Wiring Connections."

• Use 60°C copper wire only, one #12 or two #14–16 AWG (one x 3.1 mm² or two x 2.0 mm²–1.3 mm²).

• Verify the number and types of units that can be connected to this network (see “Network Considerations”).

• Insert the rubber terminal plugs into any unused RJ-45 ports to prevent wire cuttings and other debris from entering the unit.

• The recommended torque for tightening the line- and load-voltage terminal screws is 5 lb-inch (0.56 Nm). Do not exceed this torque.

• Isolate electrical power conductors from the C-Bus network cable and all other Class 2 conductors.

• Verify that incoming electrical power lines are held in place according to local regulations, for example, using cable ties to attach power lines to an enclosure.

• Do not Megger® test C-Bus data cabling or terminals (see section “Megger Testing Guidelines”).



Figure 6: Electrical Wiring Connections for 20 A Four-Channel Relay

KEY:

NOTE: Only use 60°C copper wire, one #12 or two #14-16 AWG (3.1 mm² - 1.3 mm²).

A. Ground

B. N = Neutral

C. L = Line

D. Load

E. Typical wiring from load center to channel

Connecting DIN-Rail Relays to the C-Bus Network

The DIN-Rail Relay is connected to the C-Bus network through one of the RJ-45 sockets (see the figure “Connecting to the C-Bus Network”). Use Category 5 unshielded twisted pair (UTP) data cable and an appropriately wired RJ-45 connector to make the connection (see figure “C-Bus Wiring Connections” and table “C-Bus Cable Conductor Assignments”).

NOTE: The C-Bus connection is polarity sensitive.

Verify that the C-Bus network connection is to the C-Bus connections port [see (B) in figure "Connecting DIN-Rail Relays to the C-Bus Network"].

NOTE: Insert the provided rubber plugs into any unused RJ-45 cable terminals.



Figure 7: Connecting DIN-Rail Relays to the C-Bus Network

KEY:

A. C-Bus network RJ-45 connection ports (bottom view)

B. RJ-45 connectors

C RJ-45 pin outs

D. Rubber terminal plug for unused C-Bus connection ports

A Cat 5 UTP patch cord is included with the unit to facilitate easy interconnection of units. Always verify that the network current load and available power are within limits (see the section “Network Considerations”) before adding units to the network.

Prevent wire clippings and other debris from entering the relay unit by inserting a rubber RJ-45 terminal plug into any unused ports.

Figure 8: C-Bus Wiring Connections

KEY:

A. C-Bus positive (+): blue + orange

B. C-Bus negative (-): blue-white + orange-white

C. Remote OFF: brown + brown-white

D. Remote ON: green + green-white



Table 6: C-Bus Cable Conductor Assignments

RJ Pin C-Bus Network Connection Color

1 Remote ON Green-White

2 Remote ON Green

3 C-Bus Neg (-) Orange-White

4 C-Bus Pos (+) Blue

5 C-Bus Neg (-) Blue-White

6 C-Bus Pos (+) Orange

7 Remote OFF Brown-White

8 Remote OFF Brown

Remote Override Connections

The C-Bus connectors have extra pairs of conductors (see the figure “C-Bus Wiring Connections” and the table “C-Bus Cable Conductor Assignments”) that can be used to enable Remote Overrides (ON/OFF), which operate without using the C-Bus network (see section “Remote Overrides”). The Remote Override connections are optional, but it is recommended that they be maintained for correct operation of these services across the C-Bus network. The Remote Override services can be disabled by using the C-Bus Toolkit software.

NOTE: C-Bus is a balanced network, so C-Bus positive (+) must be present at any point where C-Bus negative (–) is taken. Therefore both network conductors [C-Bus positive (+) and C-Bus negative (–)] must be looped through all Remote Override input switches on the network.

The figure "Wiring for Remote Overrides" shows how one or more switches can be connected in parallel on any one network. If connecting a Remote ON switch, use the green and green–white conductors; if connecting a Remote OFF switch, use the brown and brown–white conductors. Remote Overrides are triggered by connecting the relevant conductors to C-Bus negative (see the table “C-Bus Cable Conductor Assignments”).



Figure 9: Wiring for Remote Overrides

KEY:

1. Remote ON connections 2. Remote OFF connections

A. Remote OFF: Brown + Brown-White B. C-Bus negative (–): Orange-White + Blue-WhiteC. Remote ON: Green + Green-White D. C-Bus positive (+): Orange + Blue

Megger® Testing Guidelines ®Do not Megger test C-Bus data cabling or terminals. Megger

testing of data cabling or terminals can degrade the performance of the C-Bus network.

It will not harm the C-Bus units if electrical power terminals only are Megger tested. But because C-Bus units contain electronic components, the Megger readings will not be correct. To obtain valid readings, disconnect the power lines from the C-Bus units.

HAZARD OF C-BUS NETWORK PERFORMANCE DEGRADATION

®Do not Megger test C-Bus data cabling or terminals, as it can result in equipment damage. Failure to follow this instruction will result in damage to the C-Bus network.



STANDARDS

Table 7: U.S. and Canadian Product Safety Standards and U.S. FCC Regulations

Standards/Regulations Title

CSA C22.2 No. 14 Complies with cUL Standards for Industrial Control Equipment

UL508 Industrial Control Equipment

FCC Part 15 Complies with FCC Standards for Home or Office Use

Table 8: Other Safety Standards and Directives

Standard/Directive Title

AS/NZS 3100:1997 General Requirements for Electrical Equipment

AS/NZS 1044:1995; Limits and Methods of Measurement of Radio Disturbance Characteristics of Electrical Motor-Operated and Thermal Appliances for Household and Similar Purposes, Electric Tools and Similar Electric Apparatus

IEC/CISPIR 14/1993;

BS/EN 55014:1994

IEC 60669-2-1:1996: Switches for Household and Similar Fixed Installations–Part 2: Particular Requirements, Electronic Switches EN 60669-2-1:2000

AS/NZS 61000-3-2:1998; Low Frequency Emissions

IEC 61000-3-2:1995

EN 61000-3-2:1995



SPECIFICATIONS

Table 9: Specifications for 20 A DIN Relays

Catalog Number

SLC5504TRVF20 SLC5504TRVF20P SLC5504HRVF20 SLC5504HRVF20P

Nominal Supply Voltage and Frequency

110-120 V AC, ±10%, 50–60 Hz 277 V AC, ±10%, 50–60 Hz

Nominal Voltage Requirements

Without an external power source, draws 15-36 V DC @ 18 mA from the C-Bus network, enabling configuration.

With an external power source, supplies ≤200 mA to the C-Bus network


Never supplies power to the C-Bus network.


With an external power source, supplies ≤200 mA to the C-Bus network


Never supplies power to the C-Bus network.

AC Input Impedance

50 kOhm @ 1 kHz 100 kOhm @ 1 kHz 50 kOhm @ 1 kHz 100 kOhm @ 1 kHz

Electrical Isolation 3.75 kV RMS from C-Bus to power source

Status Indicators C-Bus LED: Power levels and presence of C-Bus clock Unit LED: Unit power Local Override button: Channel status

Max. Units/Network

Based on the total network current load and available power.

Contact Type Voltage free, magnetically latched, normally open

Quiescent Power 10 W

Warm-Up Time 5 sec

Restart Delay 0 sec to 42 min, 30 sec

Network Clock Software selectable

Network Burden Software selectable

Dimensions 8.5 in. (W) x 3.4 in. (H) x 2.6 in. (D) [215 mm (W) x 85 mm (H) x 65 mm (D)]

Remote Override Connection

RJ-45 connector. Remote switch input can be daisy-chained to the Max. Units/Network, with 3280 ft (1000 m) of cable (max.)

Electrical Terminals

Use 60°C copper wire only, one #12 or two #14 - 16 AWG (one x 3.1 mm² or two x 2.0 mm²–1.3 mm²)

Weight 20.5 oz (580 g)

C-Bus Connections

2 x RJ-45 receptacles. 15.75 in. (400 mm) patch lead included

Operating Environment

Temperature: 32°F–113°F ( 0°C–45°C) Relative Humidity: 10–95%



NOTE: The 20 A DIN Relay has no user-serviceable parts.

Load Ratings

The 20 A DIN-Rail Relays can be used with the following loads:

Table 10: Load Ratings, 20 A DIN Relays

Load Rating per Channel Compatible Loads

SLC5504TRVF20/ SLC5504TRVF20P

SLC5504HRVF20/ SLC5504HRVF20P

Incandescent lighting 20 A 20 A

Fluorescent lighting 20 A 20 A

Resistive load 20 A 20 A

Low-voltage lighting with iron-core transformers

20 A 20 A

Low-voltage lighting with electronic transformers

20 A 20 A

Exhaust fans (shaded-pole induction motor)

4 A Full Load 24 A Locked Rotor


Ceiling fans (split-phase induction motor)



Dimensions

Figure 10: Dimensions of a 20 A DIN Relay

Square D® Clipsal® Four-Channel 20 A DIN-Rail Relay Instruction Bulletin

Schneider Electric, USA 295 Tech Park Drive La Vergne, TN, 37086 1-888-SquareD (1-888-778-2733) www.squaredlightingcontrol.com

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material.

Square D, , Clipsal, C-Bus, and Powerlink are trademarks or registered trademarks of Schneider Electric and/or its affiliates in the United States and/or other countries. © 2006 Schneider Electric. All Rights Reserved.

63249-420-242A1 09/2006

SUPPORT AND SERVICE

Contact the Square D Customer Information Center for technical support by phone at 1-888-Square D (1-888-778-2733) or e-mail at [email protected].

Contact your local Square D service representative or Square D® Clipsal® certified installer for repairs or service to your network.

You may also find helpful information on our web site at www.squaredlightingcontrol.com.

square d® clipsal® four-channel 20 a din-rail relay · the 20 a relay units feature local...

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