Mitsubishi Electric C70, Руководство по установке

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Appendix 2 Explanation of Alarms
MITSUBISHI CNC
586
(Note) When warning 9F occurs, do not turn the drive unit power OFF to ensure that the absolute position data is held.
Replace the battery with the drive unit power ON.
Warning No.
9F
Battery voltage drop
The battery voltage that is supplied to the absolute position detector dropped. The absolute position data is retained.
Investigation details Investigation results Remedies SV SP
1
Change the used battery and check whether
the warning does not occur. (Turning the
power OFF and ON is required.) The warning does not occur. The battery has been drained.
The warning occurs. Check the investigation item No. 2.
2
Check whether the battery cable is
disconnected, broken, or wired incorrectly.
The connection is faulty.
Correct the connection.
Replace the cable.
The connection is normal. Check the investigation item No. 3.
3 Measure the new battery voltage.
Less than 3.4V. Replace the battery.
3.4V or more.
Check the investigation item No. 6.
When a battery box is used, check the
investigation item No. 4.
4
Check whether the cable connecting
between the battery box and CN9 is short-
circuited, broken, or wired incorrectly.
The connection is faulty.
Correct the connection.
Replace the cable.
The connection is normal. Check the investigation item No. 5.
5
Disconnect the BT-LG cable of the battery
box, and then measure the voltage between
DO(ALM) and DOCOM terminals at power
ON. Low voltage. Replace the battery box.
Equivalent of 24V. Check the investigation item No. 6.
6
Perform a conductivity check with the
detector cable between BT and LG of the
drive unit in which the warning was
detected.
(Note) Make sure that the detector side
connector is disconnected. Resistance value is low. Replace the cable.
Resistance value is 100M or more.
Replace the detector.
(With the absolute position system, the zero
point must be established.)
Warning No.
A3
Distance-coded reference check / initial setup warning
When the detector with distance-coded reference marks is used, this warning is issued until the axis reaches the reference
position during the initial setup of the distance-coded reference check function. This warning disappears after the axis has
reached the position.
Investigation details Investigation results Remedies SV SP
1 Warning does not disappear.
Stopped on the way to the reference
position.
Setup again. -
Warning No.
A6
Fan stop warning
A cooling fan built in the drive unit stopped.
Investigation details Investigation results Remedies SV SP
1 Check the alarm No. "45" items.
Warning No.
E0
Over regeneration warning
Over-regeneration detection level exceeded 80%.
Investigation details Investigation results Remedies SV SP
1 Check the acceleration/deceleration cycle.
The cycle operation being conducted is
severe for the average output. Extend the cycle operation time to the
length that will not cause a warning.
No problem. Check the investigation item No. 2.
2 Check the load inertia. The load inertia is large. Lower the load inertia.
Warning No.
E1
Overload warning
Overload detection level exceeded 80%.
Investigation details Investigation results Remedies SV SP
1 Check if the motor is hot.
Motor is hot. Check the alarm No. "50" items.
Motor is not hot. Check the investigation item No. 2.
2
Check if an error occurs when executing
acceleration/deceleration operation.
Error is not found in operation. Thus,
operation is possible.
Ease the operation patter, if possible. If no
alarm occurs, operation can be continued
as it is.
Error is found in operation.
Check the investigation item 3 or later of
Alarm No. 50.
3 Check the alarm No. "50" items.