CHAPTER 7 MAINTENANCE AND INSPECTION

7

The position shifts from an

intended one in pulse operation.

Check the pulses of PLC output and amplifier

command integration.

PLC output pulse≠command

integration pulse

PLC output pulse = command integration pulse

Check the travel amount per pulse.

Abnormal

Not abnormal

There is a mechanical abnormality.

Abnormal

Not abnormal

Contact us.

(1) Check the wiring for pulses.

(2) Check noise occurrence.

(3) Check PA1_03 (command pulse form

selection).

Check the setting of electronic gear.

(1) Check the machine for overload or

mechanical slip, etc.

The motor does not operate in a

smooth manner (operates

choppily).

Check PA1_14 (load inertia ratio).

Moment ratio＜50

Check the acceleration/deceleration torque.

Not abnormal

There is a mechanical abnormality.

Not abnormal

IMneormtiaenrtartaiotio≥≧5050

300M%aox.r 3m0o0r%e torque is required.

Abnormal

Contact us.

Select "1" (semi auto) in PA1_13 (tuning

mode selection) and set the PA1_14

parameter appropriately.

Extend the acceleration/deceleration time.

(Reference: The acceleration/deceleration

torque becomes 250% or less.)

Check the machine for backlash or

mechanical slip, etc.

7-22 Troubleshooting