Chapter 7 Common Fault & Anomalies And Solutions; Fault Code Information - Chziri ZVF200-M User Manual

Chapter 7 Common Fault & Anomalies and Solutions
Chapter 7
Common Fault & Anomalies and Solutions

7.1 Fault Code Information

7.1.1 Common Problems and Solutions
Fault Descriptions
Fault Name
The AC drive detects an
abnormalincrease in
current.
The AC drive detects that
the DC bus voltage has
exceeded its maximum
allowable value.
The AC drive temperature
sensor detects excessive
heat.
-120-
Corrective Actions
1. Check whether the motors horsepower
corresponds to the AC drive output
power.
2. Check the wiring connections between
the AC drive and motor for possible
short circuits.
3. Increase the Acceleration time
(P10,P12).
4. Check for possible excessive loading
conditions at the motor.
5. If there are any abnormal conditions
when operating the AC drive after
short-circuit being removed, it should
be sent back to manufacturer.
1. Check whether the input voltage
falls within the rated AC drive input
voltage.
2. Check for possible voltage transients.
3. Bus over-voltage may also be caused
by motor regeneration. Either increase
the decel time or add an optional
brake resistor.
4. Check whether the required braking
power is within the specified limits.
1. Ensure that the ambient temperature
falls within the specified temperature
range.
2. Make sure that the ventilation holes
are not obstructed.
Chapter 7 Common Fault & Anomalies and Solutions
Fault Descriptions
Fault Name
The AC drive temperature
sensor detects excessive
heat.
The AC drive detects that the
DC bus voltage has fallen
below its minimum value.
The AC drive detects excessive
drive output current.
Note: The AC drive can
withstand up to 150% of the
rated current for a maximum
of 60 seconds.
Internal electronic overload
trip
Motor overload. Check the
parameter settings (P60 to
P62)
When external terminal (X3-
X6) set this function,Inverter
output is turn off
-121-
Corrective Actions
3. Remove any foreign objects on the
heat sinks and check for possible dirty
heat sink fins.
4. Provide enough spacing for adequate
ventilation.
Check whether the input voltage falls
within the rated AC drive's input
voltage.
1. Check whether the motor is
overloaded.
2. Reduce torque compensation
setting as set in P54.
3. Increase the AC drive's output
capacity.
1. Check for possible motor overload.
2. Check electronic thermal overload
setting.
3. Increase motor capacity.
4. Reduce the current level so that the
drive output current does not exceed
the value set by the Motor Rated
Current P52.
1. Reduce the motor load.
2. Adjust the over-torque detection
setting to an appropriate setting.
Disable this connection and the AC
drive will begin to work again.
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