Relay Wiring
Note:
Neutrals terminate within the adjoining lighting panel.
The standard relay is a simple contact closure, breaking the
line and load wires of a normal circuit.
To wire the relay into the control unit:
1. Verify that all wire cuttings are removed from the enclosure.
2. Test branch circuits for short circuits prior to landing wiring
on relays.
3. Connect a 120 or 277 volt, 20 amp max, de-energized
branch circuit breaker to the relay terminal block.
4. Connect the load wiring to the output terminal block.
Note:
terminal blocks are not polarity sensitive although it is
recommended that line and load be brought into terminal
blocks in the same manner for consistency.
5. Tighten down relay terminal screws. Manufacturer’s recom
-
mended torque rating is 7lbs-in. (0.59 lbs-foot) (0.8Nm).
6. Document relay to circuit information for future reference.
ControlKeeper-2
®
Relay Wiring
Connecting Low Voltage Inputs
The ControlKeeper-2
®
logic board can support both dry contact
closure and Digita
®
Switch inputs. If a combination of contact
input switches and Digita
®
Switches are being used, the com
-
bined total cannot exceed 64 inputs.
Regardless of input type used, it is recommended that all input
wiring be done prior to applying power to the logic board or at
the very least with the terminal blocks removed from the logic
board. Please verify that there are no shorts to AC Ground
prior to connection of input devices.
Regardless of input type, the following notes apply.
1. All low voltage wiring is Class 2 wiring.
2. All low voltage wiring must enter the cabinet into the Low
Voltage section of the enclosure. Low Voltage wiring can be
brought into the enclosure from the left side of the enclosure.
Failure to separate high voltage from low voltage wiring
may cause interference with logic board function.
3. All low voltage wiring must be run in separate conduit from
line-voltage wiring.
4. Test all low voltage wiring for shorts to AC ground before
connection to the relay panel.
5. When powering peripheral devices such as motion sensors
and photosensors from the ControlKeeper-2
®
panel, there may
be a limitation on the number of sensors that can be sup-
ported. This is also true if Digita
®
Switches are used with the
system. See the recommendations below or contact Cooper
Controls for further information.
6. It is recommended that the terminal blocks be removed from
the board or power removed from the logic board when
doing initial switch input wiring.
Contact Input Switch Wiring
This section describes the wiring for dry contact closure
devices. There are two switch input wiring terminals on the
left side of the ControlKeeper-2
®
to allow for wiring of the dry
contact closure devices.
1. Use 18 AWG twisted, unshielded wire for all low voltage
dry contact closure device wiring.
2. Maximum length for dry contact closure device wiring is
1000 feet.
3. Please see wiring detail below for details on connections
of different devices to the ControlKeeper-2
®
system.
ControlKeeper-2
®
Low Voltage Switch Wiring
Contact Input Photosensor and Greengate Sensor Notes
It is possible to use a contact input photosensor and Greengate
Motion Sensors in conjunction with the lighting control system.
The ControlKeeper-2
®
is capable of powering a number of
these devices. Please refer to the chart below for details on
how many devices the transformer can support.
40
16
20
20
Greengate
PIR Sensor
Greengate
Dual-Technology
Sensor
Greengate
Ultrasonic
Sensor
PPS-4
Indoor
Photosensor
4
PPS-5
Outdoor
Photosensor
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