Table of Contents
Advertisement
QUICK START GUIDE
8B - Nebula controller
Connect per site engineering instructions.
Connections are on the front of the IO Module connections unit.
Route wires through routing bend tab and tie wires to wire tie points and wire
as desired.
TB1 - TB21
detachable block - Strip - 0.35" (9 mm) Torque - 2 in-lb (0.25 Nm)
Alarm Outputs and Inputs
TB1 - TB10
Alarms Outputs - Wire to office alarms. See Information: Signal
Connections.
TB11 - TB20
Inputs - Wire to signal sources. See Information: Signal
Connections.
Alt Bias
TB21
Alternative 24V external Bias supply
1-Wire Battery Temp and Voltage Monitor - Optional
1-WIRE DATA
See Information: Battery Monitoring Connections.
ALARM OUTPUTS
RATED 125VDC @ 0.5A
REF
FACTORY DEFAULT ASSIGNMENT (SIGNAL – PIN#1; COMMON – PIN#2)
TB1
Power Critical Alarm severity indicator
TB2
Power Major Alarm severity indicator
TB3
Power Minor Alarm severity indicator
TB4
R1 Rectifier Fail (RFA/MRFA)
TB5
R2 AC Fail alarm (ACF/MACF)
TB6
R3 Low Voltage (BD/, VLV)
TB7
R4 Ground Fault (GFI)
TB8
R5 High Voltage (HVSD/HV)
TB9
R6 Multiple Rectifier Fail (MRFA/MFA)
TB10
R7 Check Battery
ALARM INPUTS
("DRY", NO VOLTAGE, BINARY CONTACT MONITORS)
TB11
AUX1 (AIR CONDITIONER FAIL)
TB12
AUX2 (DOOR OPEN)
TB13
AUX3 (HIGH EXTERNAL AMBIENT)
TB14
AUX4 (LOW EXTERNAL AMBIENT)
TB15
CHARGER/PLANT BATTERY TEST (PBT)
TB16
REMOTE RECTIFIER STANDBY (GSTBY)
TB17
AUX9 (AUXILIARY 9)
TB18
AUX8 (AUXILIARY 8)
TB19
OSAI – (OPEN STRING)
TB20
AUX6 (HYDROGEN PRESENT)
DIGITAL PORTS
TB21
RESERVED FOR FUTURE USE
TB22
1-WIRE TEMP PROBES; 1-WIRE SIGNAL ON PIN1; RETURN ON PIN2
OPTIONAL #24VDC CONTROLLER BACK-BIAS INPUT
TB23/24
ALT-BIAS 24VDC-IN PIN 4; ALT-BIAS 24VDC-IN RTN PIN 5
RECT DATA
RS485 / GALAXY PROTOCOL RECTIFIER SERIAL BUS
Page 15
© 2021 ABB. All rights reserved.
IP943G IO Module
Version 6.0
Advertisement
Table of Contents
