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MHT260a (Engl.)
9-7
(a) Overload, motor overheat
•
Keypad panel display
•
Contents of alarm
The rms (root-mean-square) value of torque (command value) of motor exceeded the value allowed to the motor (detected by electronic
thermal relay built-in amplifier).
•
Cause, check and remedy
(b) Absolute data lost
•
Keypad panel display
•
Contents of alarm
Absolute value data of the 16-bit serial encoder built in GYC/GYS type motor are lost.
•
Cause, check and remedy
This alarm is detected only when ABS (absolute system) is selected by setting of system para. 99.
Use an absolute system upon presetting the current position. This alarm detection cannot be reset by alarm reset [RST] signal.
(i) Mount a battery (WSB-S type) on the amplifier or supply power to the control input/output terminal on CN1.
(ii) Connect the encoder wiring from CN2 to the encoder wires of motor.
The current position information is destroyed if approx. 1 [h] elapses at a status where the encoder wiring is not connected.
(iii) Preset the current position in the test running mode [ ].
Executing the position preset simultaneously resets the alarm detection.
(*)
Accel. : Acceleration, accelerating
Decel. : Deceleration, decelerating
Overload (OL)
Contact us
Display torque value in monitor
mode [ ].
Overload detected while motor is
rotating at constant speed ?
Detected while motor is at
standstill ?
Power wiring for motor and amplifier may be disconnected. Power
wiring may not be connected to U-U, V-V, W-W phases. Check the
resistance values.
Overload is detected if monitor value of [ ] exceeds 100 at
all times.
For some reducers, the load increases in proportion to the speed.
Motor dwell time or constant speed
running time is short ?
Accel./decel. (*) may frequently be repeated and overload may be
detected on account of accel. (decel.) torque.
•
Increase the accel./decel. time
•
Increase the dwell time
If after the above trials, overload is not detected, alarm is attributable
to torque at accel./decel.
Содержание Faldic-a RYS-R Series
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