Troubleshooting guide
Table Of Contents

1336 PLUS - 6.16 - September, 2001
3-8 Troubleshooting and Error Codes
Serial Fault
10
A SCANport adapter has been dis-
connected and the [Logic Mask] bit 
for that adapter is set to “1.”
1. If no adapter was intentionally dis-
connected, check wiring to the 
SCANport adapters. Replace wiring, 
SCANport expander, SCANport 
adapters, Main Control Board or 
complete drive as required.
2. If an adapter was intentionally dis-
connected and the [Logic Mask] bit 
for that adapter is set to “1”, this fault 
will occur. To guard against this fault 
occurring, set the [Logic Mask] bit for 
the adapter to “0.”
3. Check HIM connection for proper 
seating.
Shear Pin Fault
63
Programmed [Current Limit] amps 
has been exceeded and [Shear Pin 
Fault] is enabled.
Check load requirements and [Current 
Limit] setting.
Sync Loss Fault
67
Not functional at time of printing.
Temp Sense Open
55
Heat sink thermistor is open or 
malfunctioning.
Check thermistor and connections.
Undervolt Fault
04
DC Bus voltage fell below the mini-
mum value (388V DC at 460V AC 
input). [Line Loss Fault] and [Low 
Bus Fault] set to “enabled.”
Monitor the incoming AC line for low 
voltage or line power interruption. 
UV Short Fault
41
Excessive current has been 
detected between these two output 
terminals.
Check the motor and external wiring to 
the drive output terminals for a shorted 
condition. 
UW Short Fault
42
Excessive current has been 
detected between these two output 
terminals.
Check the motor and external wiring to 
the drive output terminals for a shorted 
condition. 
VW Short Fault
43
Excessive current has been 
detected between these two output 
terminals.
Check the motor and external wiring to 
the drive output terminals for a shorted 
condition. 
Name & Fault # Description Action










