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
Summary of Contents for Design Envelope 4300
Page 2: ......