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8-7
8-3 Troubleshooting
8
Troubleshooting
12
Overvoltage
Occurs when power
supply is turned ON.
•
Main circuit power
supply voltage is
outside allowable
range.
•
Change the main
circuit power supply
voltage to within
allowable range.
Occurs when Servomo-
tor is decelerating.
•
Load inertia is too
great.
•
Calculate the regener-
ative energy, and
connect an External
Regeneration Resistor
with the required
regeneration
absorption capacity.
•
Extend the
deceleration time.
•
Main circuit power
supply voltage is
outside allowable
range.
•
Change main circuit
power supply voltage
to within allowable
range.
Occurs during descent
(vertical axis).
•
Gravitational torque is
too large.
•
Add a counterbalance
to the machine to
lower gravitational
torque.
•
Slow the descent
speed.
•
Calculate the regener-
ative energy, and
connect an External
Regeneration Resistor
with the required
regeneration
absorption capacity.
13
Main power supply
undervoltage
Occurs when the Servo
Drive is turned ON.
•
The power supply
voltage is low.
•
Momentary power
interruption occurred.
•
Power supply capacity
is insufficient.
•
The power supply
voltage is reduced
because the main
power supply is OFF.
•
The main power
supply is not input.
•
Check the power
supply capacity.
•
Change the power
supply.
•
Turn ON the power
supply.
•
Extend the
Momentary Hold Time
(Pn6D).
•
Phase loss.
•
Correctly connect the
phases of the power
supply voltage.
•
Correctly connect the
single phase.
•
The main circuit power
supply is damaged.
•
Control PCB error.
•
Replace the Servo
Drive.
Alarm
code
Error
Status when error occurs
Cause
Countermeasure
Summary of Contents for R88D-GT series
Page 20: ...18 Table of Contents ...
Page 234: ...3 133 3 8 Reactor Specifications 3 Specifications ...
Page 448: ...7 37 7 5 Manual Tuning 7 Adjustment Functions ...
Page 474: ...8 25 8 5 Periodic Maintenance 8 Troubleshooting ...
Page 475: ...Chapter 9 Appendix 9 1 Connection Examples 9 1 9 2 Parameter Tables 9 11 ...
Page 509: ......