Cumberland EDGE 890-00601, Installation And User Manual

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Chapter 2: Basic connections
Connecting a variable 0-10 VDC output
The terminals used for 0-10 VDC outputs are named VAR (x) on the plug-in module. 0-10 VDC output
returns are named GND (x) for outputs VAR (x). The maximum current of each 0-10 VDC output is 20
mA. The output impedance must be at least 50 Ohms. There are only a total of four 0-10V outputs on a
card. You can either use these to internally control the EDGE variable modules, or to externally control
another device. For each of these four outputs, you can only use the 0-10VDC output terminals OR the
white variable output module (SSR) connector, not both.
What You Should Know
NOTE: A minimum wire gage of 18 AWG (1 mm 2 ) is required for proper operation. The maximum cable
length allowed (including cable extensions) is 150 m (500 feet). The cable must be twisted and
shielded. The maximum current of each 0-10 VDC output is 20 mA. The output impedance must
be at least 50 Ohms The 0-10 VDC output follows the variable output module (SSR). Each 0-10
VDC is in parallel with a 0-10 VDC variable output module (SSR) control output.
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.
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 terminal blocks connected on the power relays, use a tightening torque from
0.7N*m (6.2lbf*in) to 0.8N*m (7lbf*in) to fasten a wire gage from 10AWG to 14AWG.
The Main Controller only needs a functional Earth.
895-00693 EDGE 35