V.
Troubleshooting Guide
Fault Output
{
Form "C" Relay Contacts rated 1 Amp @
24VDC
{
Relay Contacts labeled in the non-operational
(fault) condition
{
Fail-safe; active until an actual fault condition.
Visual Indicators
1. AC Presence LED1:
Green LED
2. System OK LED2:
Green LED
Fault Conditions
{
"SYS OK" Green LED extinguishes on:
1. Low AC / No AC / Blown AC Fuse
2. Low / High Battery or Output
3. Blown Battery Fuse
VI
Troubleshooting Chart
Replace PC Board.
Defective board
5) No relay transfer on fault
Rewire battery set.
Incorrect battery
hook-up.
Remove primary power and batteries, then
replace fuse. CAUTION. Observe polarity.
Blown battery fuse.
4) No battery back-up
Measure xfmr secondary voltage. If not within
proper range, replace transformer.
Incorrect or defective
xfmr.
Rewire battery set.
Incorrect battery
hook-up.
Remove system load and batteries; check
system output voltage. If OK recheck system
requirements, and/or measure output current
draw with an ammeter.
The system load is
greater than the
supply capability.
Check battery condition and replace if needed.
Defective battery.
3) Incorrect output voltage
Check xfmr secondary voltage at PC board
"Low Voltage AC Connection". If voltage is not
present, replace xfmr.
Loss of transformer
(xfmr) power.
Remove primary power and batteries, then
replace fuse. CAUTION.
Blown AC fuse.
Check AC primary supply.
Loss of AC power.
2) Green "AC ON" LED is not
illuminated.
See Symptom 4.
Blown battery fuse.
See Symptom 3.
Low or High output.
See Symptom 2.
Low AC / No AC /
Blown AC fuse.
1) Green "SYS OK" LED is off.
Relay Contacts transfer to NC.
Correction Procedure
Possible Cause
Symptoms
Power Support System
Installation Instructions
AlarmSaf
65A Industrial Way Wilmington, MA USA 01887-3499 (978) 658-6717 FAX: (978) 658-8638 Web Site: www.alarmsaf.com
52-009L
032697
12 Volt
Battery
12 Volt
Battery
12 Volt
Battery
12 Volt
Battery
+
+
+
+
-
-
-
-
24 Volt Configuration
12 Volt Configuration
Parallel Hook-Up
Series Hook-Up
+
+
-
-
BATTERY CONFIGURATIONS
For further assistance, please contact the AlarmSaf Technical Service Department.
