Chapter 5 Trouble shooting and maintenance
5-5
5.1.3 Keypad operation error description
Display Error Cause Corrective Action
Key operation
error
1. Attempt to Press▲ or ▼
keys when F05> 0 or in
speed operation.
2. Attempt to modify
parameters, which can not
be modified during Run
(see parameter list).
1. ▲ or ▼ keys can be used
to modify frequencies only
when F05=0.
2. Modify parameters only in
stop mode.
Parameter
setting error
1. F07 is within ranges of
C27±C29or C28±C29
2. F07<F08 or F07=F08
1. Modify F32~F33
2. 3-00>3-01
Modification of
parameter is not
allowed during
communication
1. Issue a control command
during communication
disabled
2. Modify C49~C53 during
communication.
1. Issue the enabling
command before while
communicating.
2. Set up parameters before
communicating.
Communication
failure
1. Incorrect wiring.
2. Incorrect settings of
communication parameters.
3. Check-sum error.
4. Incorrect communication
verification.
1. Check the hardware and
wiring.
2. Check C49~C53
Incorrect
parameter
settings
1. Attempt to modify F00
2. Voltage and current
detection circuits are
malfunctioning.
Reset inverter or contact
technical support
Parameter set
error, Cop