SD20-G Series
332
9.1.2 Speed control mode
Start-up process
Description
Cause
Countermeasures
Connect control
powe(L1C,L2C)
and main power
supply(R/L1 ,S/
L2, T/L3)
Digital tube is not on
or green light is not
on
1. Control terminal is
disconnected
Rewire
Connect L1C/L2C power cable to
socket separately.
2.Control power
supply fault
Check the voltage between L1C and
L2C
Note: 380V servo drive doesn’t
need to connect to L1C and L2C.
3.Servo drive fault
Please contact with manufacturer.
Keypad Panel
displays ’AL-XXX’.
Refer to chapter 9.2 to find the cause and solve the problem.
Servo drive
enabled signal is
valid
（
/S-ON is
ON
）
Keypad Panel
displays ’AL-XXX’.
Refer to chapter 9.2 to find the cause and solve the problem.
Servo motor is in
unlocked state
1. Servo drive
enabled signal is
invalid
Check whether green light is on, if it is
not, take the following step.
Check whether Po004=0, if it is not, set
0 to Po004, then repower on.
Check whether Lo-15.A is 1, if it is not,
check whether wiring is correct.
2.Control mode is
wrong
Check whether Po001.X is correct.
Input position
command
Servo motor doesn’t
rotate or speed is not
correct.
1. Lo-12 has no
change.
2. Forward and
reverse running is
prohibited.
Analog interface wiring is wrong.
Before setting command source to Po428,
check whether analog wiring is correct ,
referring to chapter 4.
No speed command is input.
1. Whether DI function 2 (forward torque
limit) or DI function 3(reverse torque limit)
is used.
2. Whether DI function 11 (common pulse
prohibited) is used.
3. Check whether Po428 is set correctly.
4. Check whether Po113, Po114, Po115 is
zero when digital command is given.
Servo motor is
galloping.
Encoder cable fault
1. Check whether Lo-04 value is correct
when motor rotates 1 revolution.
2. Check whether servo drive trips into
AL-17
U/V/W motor cable is wrong
1.
Check whether U/V/W wiring is correct.
2.
If wiring is correct, please study motor
angle referring to chapter 7.2.
Rotation is not
smooth at low
Rotation
is
not
smooth at low speed.
Gain is set
improperly.
Adjust gain according to chapter7.
Summary of Contents for SD20-G Series
Page 35: ...SD20 G Series 35 M3 structure Fig 3 1 5 Servo drive structure 3...
Page 36: ...SD20 G Series 36 ML3 structure 118 5 5 7 5 93 297 8 223 118 93 0 5 12 5 7 5 4 M4...
Page 38: ...SD20 G Series 38 M4 structure Approx mass 10 365 kg Fig 3 1 7 Servo drive structure 5...
Page 39: ...SD20 G Series 39 M5 structure Approx msaa 11 1Kg Fig 3 1 8 Servo drive structure 6...
Page 40: ...SD20 G Series 40 M6 structure Approx mass 17 4Kg Fig 3 1 9 Servo drive structure 7...
Page 182: ...SD20 G Series 182 Fig 6 4 44SD20E Cam internal frameworkdiagram...
