Document: 1904en01.doc
QWTIME III IMPULSE AMPLIFIER
Author: PM
Date: 2011-02-03
User Manual
Page: 28 o f 28
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:
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 Impulse Amplifier by switching the supply voltage off and on.
After starting up the Impulse Amplifier, no impulses appear (to correct the slave clocks).
B1.
The Impulse Amplifier awaits the time shown by the slave clocks. Impulses will be distributed when
correct time = the time shown by the slave clocks.
Alarm messages
D1.
“Short circuit”
Excessive load on the impulse output. Check the slave clock wiring. Impulses are stored (memorised)
during the alarm. When the fault is fixed, all the stored impulses are distributed by rapid impulsing.
Synchronisation
Synchronisation is not working
Check that the LED, marked with an antenna symbol, lights every time an impulse is received.
If not check the connections and if needed measure the incoming pulse with a DVM.
Use special functions “Status sync. source” for information on the reception quality.
Accepted reception is shown by a flashing colon (:) between hours and minutes in the display.
