Orion System RNE Modular Controller - Manual (Page 29)

RNE Modular Controller Field Technical Guide
INSTALLATION AND WIRING
29
Binary Inputs Wiring
Figure 20: OE356-01-BI – 4 Binary Input Expansion Module Wiring
Dirty Filter - N.O. Contact
Proof Of Flow - N.O. Contact
Remote Forced Occupied - N.O. Contact
Emergency Shutdown - N.C. Contact
BI3 BI4
COM
BI1
24 V
A
C
GND
BI2
Modular Cable
Connect To RNE
Controller
Modular Cable
Connect To Next Expansion
Board (When Used) 24 VAC
GND
4 Binary Input
Expansion Module
5 VA Minimum Power
Required For
4 Binary Input
Expansion Module
WARNING!!
Observe Polarity! All boards must be wired with GND-to-GND and 24VAC-to-24VAC. Failure to observe polarity
will result in damage to one or more of the boards. Expansion Modules must be wired in such a way that the
expansion modules and the controller are always powered together. Loss of power to the expansion module will
cause the controller to become inoperative until power is restored to the expansion module.
BI1 BI2 BI3 BI4
COM
VCM BIN EXP
BOARD
YS102364 REV1
24V
AC
GND
PWR
4 Binary Inputs Located On 4 Binary
Input Expansion Module
If your HVAC unit only requires an Emergency Shutdown (Smoke
Detector/Firestat or other shutdown conditions), Dirty Filter, Proof of
Flow or Remote Forced Occupied Inputs or any combination of these 4
inputs and you don’t need any of the other inputs or outputs provided on
the OE333-23-EM VCM-X Expansion Module, you can use the OE356-
01-BI 4 Binary Input Expansion Module for these inputs.
The transformer used for powering the 4 Binary Input Expansion Module
must also be used to power the binary inputs. See Figure 20 below for
detailed wiring.
WARNING: Do not apply any voltage greater than 24 VAC
to the binary inputs. Higher voltages will damage the expansion
module and possibly other components on the system.