Zenitel Marine Master Clock 70000, Technical User'S Manual

Page: 56 / 118

Document: 1717en21.doc
Author: PM
Date: 2022-06-22
Page: 53 of 57
MARINE MASTER CLOCK
User Manual
Fault tracing
The display is blank
A. The green LED “POWER” is light?
A1. No.
A1A. Check the supply voltage.
A1B. Power supply wires connected correctly?
A2. Yes.
A2A. Restart the master clock by switching the supply voltage off and on.
After starting up the master clock, no impulses appear (to correct the slave clocks).
B1. The master clock awaits the time shown by the slave clocks. Impulses will be distributed when
correct time = the time shown by the slave clocks.
Relay outputs are programmed but nothing happens.
C1. The switch on the front panel is in position 0. Correct position is A.
C2. Check that the output is working when the switch is in position 1.
C3. Different program types have different priority. E.g. a programmed date program overrides a
signal point in a week program.
Priority order (1=highest, 3=lowest):
1) Date program 2) Group 3) Week program
Alarm messages
D1. “Short circuit”
Excessive load on the impulse output. Check the slave clock wiring. Impulses are stored (memorized)
during the alarm. When the fault is fixed, all the stored impulses are distributed by rapid impulsing.
D2.
“Memory full”
The master clock is out of memory, probably due to incorrect programming. Use week program for
repetitive signals or group for a certain period. See the programming instructions in this manual.
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. +46 506 48000 Internet: http://www.westerstrand.se
SE-545 23 TÖREBODA Fax. +46 506 48051 E-mail: info@westerstrand.se