SMC Networks LECSB Series, Руководство по эксплуатации

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4. STARTUP
4.3.5 Actual operation
Start actual operation after confirmation of normal operation by test operation and completion of the
corresponding parameter settings.
4.3.6 Trouble at start-up
CAUTION
Excessive adjustment or change of parameter setting must not be made as it will
make operation instable.
POINT
Using the software (MR Configurator2
TM
), you can refer to unrotated servo motor
reasons, etc.
The following faults may occur at start-up. If any of such faults occurs, take the corresponding action.
No. Start-up sequence Fault Investigation Possible cause Reference
1 Power on LED is not lit.
LED flickers.
Not improved if connectors CN1,
CN2 and CN3 are disconnected.
1. Power supply voltage fault
2. Driver is faulty.
Improved when connectors CN1
is disconnected.
Power supply of CN1 cabling is
shorted.
Improved when connector CN2 is
disconnected.
1. Power supply of encoder
cabling is shorted.
2. Encoder is faulty.
Improved when connector CN3 is
disconnected.
Power supply of CN3 cabling is
shorted.
Alarm occurs. Refer to section 9.2 and remove cause. Section 9.2
2 Switch on servo-
on (SON).
Alarm occurs. Refer to section 9.2 and remove cause. Section 9.2
Servo motor shaft is
not servo-locked
(is free).
1. Check the display to see if the
driver is ready to operate.
2. Check the external I/O signal
indication (section 6.7) to see if
the servo-on (SON) is ON.
1. Servo-on (SON) is not input.
(Wiring mistake)
2. 24VDC power is not supplied to
DICOM.
Section 6.7
3 Switch on forward
rotation start (ST1)
or reverse rotation
start (ST2).
Servo motor does
not rotate.
Call the status display or software
(MR Configurator2
TM
) and check
the input voltage of the analog
speed command (VC).
Analog speed command is 0V. Section 6.3
Call the external I/O signal display
(section 6.7) and check the
ON/OFF status of the input signal.
LSP, LSN, ST1 or ST2 is off. Section 6.7
Check the internal speed
commands 1 to 7
(parameters No.PC05 to PC11).
Set value is 0. Section
5.1.9
Check the forward rotation torque
limit (Parameter No.PA11) or
reverse rotation torque limit
(Parameter No.PA12)
Torque limit level is too low as
compared to the load torque.
When the analog torque limit
(TLA) is usable, check the input
voltage on the status display or
software (MR Configurator2
TM
).
Torque limit level is too low as
compared to the load torque.