Panasonic Home Business > Industrial Devices > Automation Controls Top > Service & Support > Frequently Asked Questions

What is the cause and method of rectifying Err 44.0: Single revolution counter fault protection, and Err 45.0: multi-revolution counter fault protection encoder?

ID:
40416
Issued:
Apr 3rd, 2017
Updated:
Apr 18th, 2017

What is the cause and method of rectifying Err 44.0: Single revolution counter fault protection, and Err 45.0: multi-revolution counter fault protection encoder?

ANSWER
■ Cause
 Err44.0: Generated while the encoder power supply (5 V) is ON, and when single revolution data causes malfunction or shifts due to failure.
 Err45.0: Generated when a fault occurs in the counting signal of multi-revolution data while the encoder power supply (5 V) is ON.
    (This does not operate when the encoder power is off.)
• If the encoder is an incremental system,
 Err45.0 does not occur.

■ Action
• If stress (thrust, radial load) is applied to the motor shaft, the encoder rotation disc gap will wobble, possibly causing a malfunction. If the generation frequency is high, encoder failure is possible and replacement of the motor is required.
• If the generation frequency is low, malfunction due to EMI is possible. After implementing EMI prevention measures, such as installing a ferrite core in the encoder cable, evaluate their effectiveness.
RELATED CATEGORIES
RELATED QUESTIONS

Did you solve your problems?

YES

NO

Search Keywords


If you still have problems with our products,

FEEL FREE TO CONTACT US

Return to top