C H A P T E R 1 : A L A R M S
1 - 3 2
Display Name
Definition
Cause
Action
1. Servo amplifier faulty.
Change the servo amplifier.
2. The power supply was turned
on and off continuously by
overloaded status.
The drive method is reviewed.
AL.45 Main
circuit
device overheat
Main circuit device
overheat
3. Air cooling fan of servo
amplifier stops.
1. Exchange the cooling fan or the
servo amplifier.
2. Reduce ambient temperature.
1. Ambient temperature of servo
motor is over 40
°
C.
Review environment so that ambient
temperature is 0 to 40
°
C.
2. Servo motor is overloaded.
1. Reduce load.
2. Review operation pattern.
3. Use servo motor that provides larger
output.
AL.46 Servo
motor
overheat
Servo motor
temperature rise
actuated the
thermal protector.
3. Thermal protector in encoder is
faulty.
Change servo motor.
1. Servo amplifier is used in
excess of its continuous output
current.
1. Reduce load.
2. Review operation pattern.
3. Use servo motor that provides larger
output.
2. Servo system is instable and
hunting.
1. Repeat acceleration/ deceleration to
execute auto tuning.
2. Change auto tuning response
setting.
3. Set auto tuning to OFF and make
gain adjustment manually.
3. Machine struck something.
1. Review operation pattern.
2. Install limit switches.
4. Wrong connection of servo
motor. Servo amplifier's output
terminals U, V, W do not match
servo motor's input terminals U, V,
W.
Connect correctly.
AL.50
Overload 1
Load exceeded
overload protection
characteristic of
servo amplifier.
Load ratio 300%:
2.5s or more
Load ratio 200%:
100s or more
5. Encoder faulty.
Checking method
When the servo motor shaft is
rotated with the servo off, the
cumulative feedback pulses do
not vary in proportion to the rotary
angle of the shaft but the
indication skips or returns
midway.
Change the servo motor.
1. Machine struck something.
1. Review operation pattern.
2. Install limit switches.
2. Wrong connection of servo
motor. Servo amplifier's output
terminals U, V, W do not match
servo motor's input terminals U, V,
W.
Connect correctly.
3. Servo system is instable and
hunting.
1. Repeat acceleration/deceleration to
execute auto tuning.
2. Change auto tuning response
setting.
3. Set auto tuning to OFF and make
gain adjustment manually.
AL.51
Overload 2
Machine collision or
the like caused
max. output current
to flow successively
for several
seconds.
Servo motor
locked: 1s or more
4. Encoder faulty.
Checking method
When the servo motor shaft is
rotated with the servo off, the
cumulative feedback pulses do
not vary in proportion to the rotary
angle of the shaft but the
indication skips or returns
midway.
Change the servo motor.
QUICK LOAD SERVO 65/80
Summary of Contents for Quick Load Servo 65
Page 1: ...Troubleshooting manual ENG 9 020 01 ANG ...
Page 43: ......
Page 61: ......
Page 67: ......
Page 96: ...CHAPTER 6 SPARE PARTS QUICK LOAD SERVO 65 80 6 27 020 005 413 QLS 65 80 Locking block ...
Page 99: ...CHAPTER 6 SPARE PARTS 6 30 020 005 703 QLS 65 80 Sub assembly drive QUICK LOAD SERVO 65 80 ...
Page 101: ...CHAPTER 6 SPARE PARTS 6 32 020 005 723 QLS 65 80 Sub assembly cogwheel QUICK LOAD SERVO 65 80 ...
Page 115: ...CHAPTER 6 SPARE PARTS 6 46 020 011 013 12 QLS 65 Assembly pusher ø12 QUICK LOAD SERVO 65 80 ...
Page 116: ...CHAPTER 6 SPARE PARTS QUICK LOAD SERVO 65 80 6 47 020 011 013 20 QLS 65 Assembly pusher ø20 ...
Page 117: ...CHAPTER 6 SPARE PARTS 6 48 020 011 023 6 QLS 80 Assembly pusher ø1 4 QUICK LOAD SERVO 65 80 ...
Page 118: ...CHAPTER 6 SPARE PARTS QUICK LOAD SERVO 65 80 6 49 020 011 023 12 QLS 80 Assembly pusher ø12 ...
Page 119: ...CHAPTER 6 SPARE PARTS 6 50 020 011 023 20 QLS 80 Assembly pusher ø20 QUICK LOAD SERVO 65 80 ...