installation &
operating instructions
Design Envelope 4300 & 4380
Vertical In-line Pumping Unit
33
7.2 warning messages
category warning troubleshooting
Over Temperature The temperature of a vfd or motor
component is near the alarm limit.
Check ambient conditions.
Check air flow and fan operation.
Check motor power against unit power
Over Current The current limit has been exceeded. Check the settings. Check for possible sudden load.
External Voltage DC volatge is out of range. Check the settings. Check the input power supply and fuses.
Internal Voltage External DC supply maybe overloaded. Check for an overvoltage condition.
Internal Internal Drive fault. Write down the code and contact Armstrong technical support.
Parameter Incorrect parameter setting. Check the parameter settings.
Startup Start up is not possible. Cycle Power. Contact Armstrong Technical support.
Other The fault group is not found Contact Armstrong technical support.
Communication No communication to the vfd. Check connections.
Speed Motor is turning faster than highest
allowed speed due to incorrectly set
minimum/maximum speed.
Check minimum/maximum frequency settings.
Check adequacy of motor braking torque.
Wiring Drive has detected earth fault in motor or
motor cable.
Check the wiring connections between the vfd and motor for possible
short circuits, also to ground
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