Maintenance And Inspection; Alarm And Trouble Shooting At Start; Position Control Mode - Parker FL20-CA Series Product Manual

X. Maintenance and Inspection

10.1 Alarm and Trouble shooting at start

10.1.1 Position control mode

Start-up process Description
Connect control
Digital tube is not on
power supply
or green light is not on
（L1C L2C）,
main power
supply（R S T）
Keypad panel
displays 'AL-XXX'
Keypad panel
displays 'AL-XXX'
Servo motor is in
unlocked state
Servo drive is
enabled by
control word
Servo motor is
galloping.
Low speed rotation is
not stable.
Rotation is not
smooth at low
Motor shaft vibrates
speed.
side to side.
Cause
 Rewiring
1.Control terminal is
 Connect L1C/L2C power cable to
disconnected
socket separately.
 Check the voltage between L1C
and L2C
2.Control power supply Note:
fault 380V servo drive should connect to
main power supply directly, no need
to connect to L1C and L2C.
3. Servo drive fault Please contact with manufacturer.
Refer to chapter 10.2 to find the cause and solve the problem.
Refer to chapter 10.2 to find the cause and solve the problem.
 Check whether green light is on, if it
is not on, taking following step.
 Check whether RUN green light is
1. Control word is
lighted, if light is flashing or off, OP
invalid
mode is not arrived.
 Check whether master and slave XML
document is set correctly.
2. Control mode is
 Select communication mode.
wrong
 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 fault.
1. Check whether U/V/W wiring is
correct.
2. If wiring is correct, please study
motor angle.
Gain is set
 Adjust gain according to chapter 9.
improperly.
 If servo drive runs safely, please
Rotation inertia
recognize inertia again according to
ratio (Po013) is too
chapter 9.2.
high.
 Adjust gain according chapter 9.
304
Countermeasures