Nidec Control Techniques Digitax-SF Series User Manual

12
8. Troubleshooting
Digitax SF Instruction Manual
3. Alarms and Remedies
Alarm No.
9 Encoder pulse - Output frequency error
Symptom
and
Possible Cause
The frequency of the encoder pulse output exceeded 4 Mpps.
Remedy
Check the numerator and denominator settings in the Encoder pulse output: Pulse ratio
(276.0 and 278.0).
Check the settings of Encoder pulse output: Error detection - Frequency upper limi
t (285.0)
and
Encoder pulse output: Error detection - Delay time (286.0).
Reset Method
Alarm No.
10 Positioning command overow /Homing failure
Symptom
and
Possible Cause
External position command exceeded the absolute value range of ±1,073,741,823.
The shift amount per one of the commands exceeded the ±2,147,483,647 range.
Homing failed and timed out.
Remedy
Select a value di󱐯erent from the current setting of Internal Position: Overow detection (643.0).
Adjust the parameters such that the shift amount will be within the ±1,073,741,823 range.
Adjust the shift amount of Positioner motion, inching and test each one.
Adjust the Homing related parameters.
Reset Method
Alarm No.
11 Encoder(multi-turn counter overow)
Symptom
and
Possible Cause
Multi-turn data of the encoder has exceeded the ±32,767 range.
Remedy
Check the setting of Absolute system (257.0).
Verify that the multi-turn motion amount is within the ±32,767 range.
Reset Method
Alarm No.
12 Overheat
Symptom
and
Possible Cause
The control circuit temperature has exceeded the upper limit.
Remedy
Check the drive's installation method and environment.
Lower the ambient temperature to below the rating.
Reset Method

Nidec Control Techniques Digitax-SF Series Specifications

General

Brand	Nidec
Model	Control Techniques Digitax-SF Series
Category	Servo Drives
Language	English