Cumberland 064-11343, Installation Manual

Page: 73 / 138

Chapter 5: Expansion Box and Virtual Expansion Box Installation
IMPORTANT: Make sure each 0-10 VDC output is connected to the proper GND. False alarms can result
if the wires are not properly connected.
WARNING
Installation must only be performed by qualified service personnel.
CAUTION
Disconnect supply before servicing.
WARNING
Lock the enclosure when wiring is complete or when servicing. Use the nut and bolt
included or a padlock (not included) to lock the enclosure.
NOTICE
For the small terminal blocks used for inputs and low voltage outputs, use a
tightening torque from 0.5N*m (4.43lbf*in) to 0.6 N*m (5.2lbf*in) to fasten a wire gage
from 16AWG to 18AWG.
Refer to the wiring diagrams for more information.
Grounding
Grounding is installed as a factory default. The protective Earth is only required in the Expansion Boxes.
The protective Earth connector is located close to the panel mount power supply inside the Expansion
Boxes.
NOTICE
For the Protective Earth terminal block, use a tightening torque from 0.7N*m
(6.2lbf*in) to 0.8N*m (7lbf*in) to fasten a wire gage from 10AWG (diameter of 2.58mm
or cross sectional area of 5.26mm
2 ) to 14AWG (diameter of 1.62mm or cross
sectional area of 2.08mm 2 ).
The EDGE 4IN-2V-8DO only need a functional Earth.
NOTICE
For the Earth terminal block on the EDGE 4IN-2V-8DO, use a tightening torque at
0.8N*m (7lbf*in) to fasten a wire.
WARNING
If rigid metal tubes are used, ensure the rigid tubes are correctly grounded.
Connecting the Power Supply
Before You Begin
IMPORTANT: Install a disconnect switch to interrupt Power to L1 and N/L2 electric Power lines before
connecting the system’s main input on the power supply. It must be in close proximity to
the equipment and within easy reach of the operator. It must be marked as the disconnect-
ing device for the equipment.
890–00687 EDGE 2 73