SM-131-006.pdf - 第285页

Device Name Chip Mounter Block Name Page No. Unit Name Revision Model Item GXH-1 Chapter 17 Servo Alarm 1. Troubleshooting on Servo Alarm Alarm Codes Contents of Servo Alarm Cause and Remedy Absolute position detection s…

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Device
Name
Chip Mounter
Block Name
Page No.
Unit Name
Revision
Model
Item
GXH-1
Chapter 17 Servo Alarm
1. Troubleshooting on Servo Alarm
Alarm
Codes
Contents of
Servo Alarm
Cause and Remedy
(Cause 5) Servo motor shaft was rotated by external force.
(Remedy 1) When torque is limited, increase the limit value.
(Remedy 2) Reduce load.
(Remedy 3) Use servo motor that provides larger output.
(Cause 6) Machine struck something.
(Remedy 1) Review operation pattern.
(Remedy 2) Install limit switches.
(Cause 7) Encoder faulty
(Remedy) Change the servo motor.
(Cause 8) Wrong connection of servo motor.
Servo amplifier
′s output terminals U, V, and W do
not match servo motor
′s input terminals U, V, and
W.
(Remedy) Connect correctly.
CPU, parts faulty 88 Watchdog
(Cause 1) Fault of parts in servo amplifier
[Checking Method]: Alarm (88) occurs if power is
switched on after disconnection of all
cable but the control circuit power
supply cable.
(Remedy) Change servo amplifier.
Serial communication error occurred between servo
amplifier and communication device (e.g. personal
computer).
8E Serial
communication
error
(Cause 1) Communication cable fault (Open cable or short
circuit)
(Remedy) Repair or change the cable.
17-23
0506-001
Device
Name
Chip Mounter
Block Name
Page No.
Unit Name
Revision
Model
Item
GXH-1
Chapter 17 Servo Alarm
1. Troubleshooting on Servo Alarm
Alarm
Codes
Contents of
Servo Alarm
Cause and Remedy
Absolute position detection system battery voltage is low.
(Cause 1) Battery cable is open.
(Remedy) Repair cable or changed.
92 Open battery
cable warning
(Cause 2) Battery voltage dropped to 2.8 V or less.
(Remedy) Change battery.
Home position return could not be made in the precise
position.
(Cause 1) Droop pulses remaining are greater than the in-
position range setting.
(Remedy) Remove the cause of droop pulse occurrence.
(Cause 2) Home position return was executed during
operation command.
(Remedy) Reduce creep speed.
96 Home position
setting warning
(Cause 3) Creep speed high.
(Remedy) Reduce creep speed.
Voltage of battery for absolute position detection system
reduced.
9F Battery warning
(Cause 1) Battery voltage fell to 3.2 V or less.
(Remedy) Change the battery.
17-24
0506-001
Device
Name
Chip Mounter
Block Name
Page No.
Unit Name
Revision
Model
Item
GXH-1
Chapter 17 Servo Alarm
1. Troubleshooting on Servo Alarm
Alarm
Codes
Contents of
Servo Alarm
Cause and Remedy
There is a possibility that regenerative power may exceed
permissible regenerative power of built-in regenerative
brake resistor or regenerative option.
E0 Excessive
regenerative
warning
(Cause 1) Regenerative power increased to 85% of
permissible regenerative power of built-in
regenerative brake resistor or regenerative brake
option.
[Checking Method]: Call the status display and check
regenerative load ratio.
(Remedy 1) Reduce frequency of positioning.
(Remedy 2) Change regenerative brake option for the one
with larger capacity.
(Remedy 3) Reduce load.
There is a possibility that overload alarm 1 or 2 may occur. E1 Overload
warning
(Cause 1) Load increased to 85% or more of overload alarm 1
or 2 occurrence level.
[Cause, checking method]: Refer to 50, 51.
(Remedy) Refer to 50, 51.
Absolute position encoder pulses faulty.
(Cause 1) Noise entered the encoder.
(Remedy) Take noise suppression measures.
E3 Absolute
position counter
warning
(Cause 2) Encoder faulty.
(Remedy) Change servo motor.
Parameter outside setting range E4 Parameter
warning
(Cause 1) Parameter value set from servo system controller is
outside setting range.
(Remedy) Set it correctly.
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0506-001