YASKAWA SGD7S-****20A Series Product Manual page 461

12.2 Alarm Displays
12.2.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
CPF01:
Digital Operator
Communications
Error 2
*1.
Detection Conditions
• Rotary Servomotor
If either of the following conditions is detected, an alarm will occur.
Pn5
Maximum motor peed [min
• Linear Servomotor
If either of the following conditions is detected, an alarm will occur.
*2.
Detection Conditions
• Rotary Servomotor
If either of the following conditions is detected, an alarm will occur.
Rated motor peed [min
・
• Linear Servomotor
If either of the following conditions is detected, an alarm will occur.
*3.
Refer to the following manual for details.
*4.
These alarms are not stored in the alarm history. They are only displayed on the panel display.
12-42
Possible Cause
A failure occurred in
the Digital Operator.
A failure occurred in
the SERVOPACK.
Encoder re olution
] 
-1
[min
6 10
5
Encoder re olution
] 
-1
Approx. .66  10
Pn585 [mm/ ]
Linear encoder pitch [m]
Pn 85 [100 mm/ ]
Linear encoder pitch [m]
Encoder re olution
 1/ 
-1 ]
Encoder re olution

Maximum motor peed [min -1 ]
Approx. .66  10
 1/
Rated motor peed [mm/ ]
Linear encoder pitch [m]
Pn 85 [100 mm/ ]
Linear encoder pitch [m]
Σ-7-Series Peripheral Device Selection Manual (Manual No.: SIEP S800001 32)
Confirmation
–
–
Pn20E

Pn210
Pn20E

12 Pn210
Re olution of erial Converter Unit

10
Re olution of erial Converter Unit

Approx. 6.10 10
5
Pn20E

Pn210
5
610
Pn20E

12 Pn210
Re olution of erial Converter Unit

10
Re olution of erial Converter Unit

Approx. 6.10 10
5
Continued from previous page.
Correction
Disconnect the Digital
Operator and then con-
nect it again. If an alarm
still occurs, the Digital
Operator may be faulty.
Replace the Digital Oper-
ator.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Pn20E

Pn210
Pn20E

Pn210
Pn20E

Pn210
Pn20E

Pn210
Reference
–
–