Ampcontrol Pty Ltd – ABN 28 000 915 542
HPB USER MANUAL
HPBB012 Version 9 – March/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
APPROVED FOR EXTERNAL DISTRIBUTION
– PROPERTY OF AMPCONTROL PTY LTD
– NOT TO BE
REPRODUCED IN PART
16 TROUBLESHOOTING
If a problem is experiences with the relay use the following table to fault find the problem. Should the
fault persist, remove the relay and return the relay plus a description of the fault to Ampcontrol for
repairs.
The HPB has no user serviceable parts. All repairs must be carried out
by Ampcontrol personnel only. If a fault develops return the HPB to
Ampcontrol for repair. It is essential that no attempt be made to repair
the HPB as any attempt to dismantle or repair the HPB can seriously
compromise the safety of the unit and the consequences can be fatal.
The Status page (level 0, position 1) should be the first step in
troubleshooting. This displays what the relay requires to make it
operate. Also check the first six event logs.
Remote Display shows a blank
screen. The HDM LED indicator
located on the top of the HDM
module is off.
Loss of power to the Display.
Check there is power to the relay
and it is correctly plugged in. Relay
supplied 15VDC to the HDM. Check
cable between HDM and the relay.
Remote Display shows a blank
screen. The HDM LED flashes at
1Hz.
Power to the HDM is healthy
but there is no data.
Check data cable between the relay
and the HDM.
Error indication #1 (level 0,
position 1).
Corruption in the Group 1
Settings, stored in the relay.
Examine the Group 1 Settings (level
8) to check the stored parameters in
the non-volatile memory. One or
several settings will show ‘???’. Re-
program list settings into the
memory.
Error Indication #2 (level 0,
position 1) when in HTU pilot
mode
Either the HTU-1 Module is
not online or the HTU-1
Module’s non-volatile
memory has been corrupted.
Check that the HTU-1 Module is
online (level 3, position 1) i.e., a
healthy pilot loop. If the HTU-1
Module is online examine the Group
2 Settings stored in the HTU
Settings (level 9). One or several
other settings will show ‘???’. Re-
program lost settings into the HTU-1
memory.
Error Indication #3 (level 0,
position 1).
Combination of faults causing
errors #1 and #2.
As outlined above for Errors #1 and
#2.
Relay will not close. EC fault
indicated
Faulty pilot circuit (open or
high resistance or shorted to
earth)
Check pilot circuit. (See detailed
fault finding information, Section 6) If
still faulty replace the relay.
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