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SPM Power Selector Module Installation Guide
27
Issue: 2
www.controltechniques.com
6
Diagnostics
The keypad display on the Unidrive SPM control module provides various items of
information regarding the status of the Unidrive SPM power modules.
The keypad display provides information for the following categories:
1. Trip indications
2. Alarm indications
3. Status indications
During a trip condition, and where an SM-Keypad (LED) is being used, the display on
the Unidrive SPM drive will alter between the trip code and the tripped SPM module
number. If an SM-Keypad Plus (LCD) is used, then the tripped module number can be
identified from Pr
10.41
to Pr
10.51
if Pr
6.49
is set to OFF(0).
For any other trip, please refer to the diagnostic section of the
Unidrive SPM User
Guide.
The following table details the possible trips indicated via the status LEDs on the SPM
Power Selector Module and diagnosis.
Trip No
Diagnosis
Unid.P
Power module undefined trip
Check all the interconnection / parallel cables between power modules.
Ensure the correct power up sequence is used. The SPM Power
Selector must be powered up before the Unidrive SPM power and
control modules are powered up.
HF18
Multi-module system interconnect cable error
Check all the interconnection / parallel cables between power modules
to ensure they are connected to the appropriate ports.
LED on
Diagnosis
PS TRIP
User 24 Vdc is not available
Check the power supply to SPM Power Selector
POWER SEQ
Incorrect Power Sequence
Unit power sequence is incorrect - ensure the correct power up
sequence is used. The SPM Power Selector must be powered up
before the Unidrive SPM power and control modules are powered up.
Do not attempt to carry out internal repairs. Return faulty units to the supplier for repair.
WARNING
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