15-B Maintenance Mnl, GFZ-62075E/03 - Automation Service Srl

3. TROUBLESHOOTING AND ACTION TO BE TAKEN
B–62075E/03
Item
(How to reset the error)
(a) The machine can be moved only toward the normal operating ranges.
(b) When the machine has stopped in the restricted zone and cannot escape it, press the emergency
stop button to reset the alarm. Then, specify G23 on the MDI panel to disable the stored stroke
limit function and move the machine in the jog mode.
(4) SV 013 IMPROPER V–READY OFF
Possible cause of the
How to check the cause
Action to take
problem
1 Fault analysis
2 Fault analysis
3 Fault analysis
4 Fault analysis
5 Signals from machine tool
6 Trouble in servo amplifier
7 Poor contact
8 Poor contact
9
No fuse breaker in turned
off.
10 No fuse breaker functions
11
Diode module, surge absorber
(TNR) or other
parts are faulty in servo
amplifier.
Check if green LED DRDY lights in servo
amplifier PCB.
Check if alarm LED lights in servo amplifier
PCB.
Check if electromagnetic contractor
MCC is turned on in servo amplifier.
Check if 100V is applied between terminals
(3) and (4) of terminal board T1 of
servo amplifier.
Check 100V power supply Check if
emergency stop signal is sent from machine
tool or if the machine tool is ready
for operation.
Servo amplifier PCB or MCC is defective.
Poor contact between servo amplifier
and main CPU or option 2 board, or a
problem in master PCB.
Poor contact inside servo amplifier or a
trouble in servo amplifier PCB.
Check the no fuse breaker button on/off
state
The operating conditions as illustrated
below.
While the motor operates normally,
this lever is at upper
position and the ON indication
can be seen. If the circuit
breaker trips, the lever moves
to the lower position and the
OFF indication appears. To
reset the breaker turn off the
three–phase power supply,
and move the lever to the upper
position.
No fuse breaker functions when power
supply is turned on after the corrective
action in item 1.
Proceed to item 2 when
LED DRDY lights. Proceed
to item 8 when it
does not light.
If this LED lights, locate
and eliminate the cause of
the alarm ( see the fllowing
1st, A–D).prossees to
item 3, when this LED
does not light.
Proceed to item 8 when
MCC is energized. Proceed
to item 4 when it is
not energized.
Proceed to item 9 when
power is applied. Proceed
to item 5 if not applied.
Restore to normal conditions.
Replace.
Replace.
Replace.
If it is not off, proceed to
item 6.
Reset the no fuse breaker
after turning off the power
supply.
( if the no fuse breaker
trips immediately then wait
for about 10 minutes before
attempting another
breaker reset.)
Replace diode module DS
or surge absorber (ZNR)
of servo amplifier.
– 20 –