YASKAWA SGDH User Manual page 555

Alarm Situation at Alarm
Alarm Name
Display
A.F1
Power Line Occurred when the
control power sup-
Open Phase
ply was turned ON.
(In the main
power supply Occurred when the
ON status, the main circuit power
supply was turned
voltage stays low
ON.
for 1 second or
more at one of
Occurred when the
the phases R, S, servomotor was
and T.) running.
(Detected when
the main circuit
power supply
turns ON.)
CPF00 Digital Opera-
Occurred when the
tor Transmis- power supply was
turned ON with dig-
∗
2
sion Error 1
ital operator con-
nected or
when connecting
CPF01
Digital Opera-
digital operator with
tor Transmis-
the power supply
∗
3
sion Error 2
was turned ON.
* 1. The alarm meaning differs depending on the SERVOPACK capacity.
• For the SERVOPACK with a capacity of 5.0 kW or lower:
A.40: Overvoltage detection alarm
A.41: Undervoltage detection alarm
• For the SERVOPACK with a capacity of 6.0 kW or higher:
A.40: Alarm detecting excessively high/low voltage in the main circuit
A.41: Not used
* 2. This alarm occurs when the communications is still disabled five seconds after digital opera-
tor power supply is ON, or when digital operator communications disabled status stays while
an application module is connected.
* 3. This alarm occurs when digital operator received data error occurs consecutively five times,
or when the state that digital operator receives no data from SERVOPACK for one second or
more occurs consecutively three times.
Table 10.6 Alarm Display and Troubleshooting (Cont'd)
Occurrence
A SERVOPACK fault occurred.
The three-phase power supply wiring is incorrect.
The three-phase power supply is unbalanced.
A SERVOPACK fault occurred.
The contact in three-phase power supply wiring is
faulty.
Three-phase power supply is unbalanced.
A SERVOPACK fault occurred.
The contact between the digital operator and the
SERVOPACK is faulty.
The external noise interference occurred to the digi-
tal operator or cable.
(The digital operator cable is near noise source.)
A digital operator fault occurred.
A SERVOPACK fault occurred.
Cause
Replace the SERVOPACK.
Correct the power supply wiring.
Balance the power supply by changing phases.
Replace the SERVOPACK.
Correct the power supply wiring.
Balance the power supply.
Replace the SERVOPACK.
Insert securely the connector, or replace the cable.
Do not lay the cable near noise source.
Install digital operator far from noise source.
Replace the digital operator.
Replace the SERVOPACK.
10-15
10.1 Troubleshooting
Corrective Actions
10