Troubleshooting Tips - Hitachi CP-X200 Instruction Manual

Troubleshooting Tips

The table below lists typical symptoms and the corresponding solution(s).
Symptom/condition
The inverter
outputs [U], [V],
[W] are not
supplying
voltage
The motor
will not run
Inverter
outputs [U],
[V], [W] are
supplying
voltage.
The optional
remote
operator is
used (SRW).
The direction of the motor is
reversed
Probable Cause
Is the frequency command source
A001 parameter setting correct?
Is the Run command source A002
parameter setting correct?
Is power being supplied to terminals
[L1], [L2], and [L3/N]? If so, the
POWER lamp should be ON.
E X X
Is there an error code
displayed?
Are the signals to the intelligent
input terminals correct?
Is the Run Command active?
Is the [FW] terminal (or [RV])
connected to [PCS] (via switch, etc.)
Has the frequency setting for F001
been set greater than zero?
Are the control circuit terminals
[H], [O], and [L] connected to the
potentiometer?
Is the RS (reset) function or FRS
(free-run stop) function ON?
Is the motor load too heavy?
Are the operational settings
between the remote operator and
the inverter unit correct?
Are the connections of output
terminals [U/T1], [V/T2], and [W/T3]
correct?
Is the phase sequence of the motor
forward or reverse with respect to
[U/T1], [V/T2], and [W/T3]?
Are the control terminals [FW] and
[RV] wired correctly?
Is parameter F004 properly set?
Solution
Make sure the parameter
setting A001 is correct
Make sure the parameter
setting A002 is correct
Check terminals [L1], [L2],
and [L3/N], then [U/T1],
[V/T2], and [W/T3].
Turn ON the power supply or
check fuses.
Press the Func. key and
determine the error type.
Eliminate the error cause,
then clear the error (Reset).
Verify the terminal functions
for C001–C005 are correct.
Turn ON Run Command
enable.
Supply 24V to [FW] or [RV]
terminal, if configured.
Set the parameter for F001 to
a safe, non-zero value.
If the potentiometer is the
frequency setting source,
verify voltage at [O] > 0V.
Turn OFF the command(s)
Reduce the load, and test the
motor independently.
Check the operator type
setting.
Make connections according to
the phase sequence of the
motor. In general:
FWD = U-V-W, and REV=U-
W-V.
Use terminal [FW] for
forward, and [RV] for reverse.
Set motor direction in F004.
6 − 3
6 3