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5-2
5-1 Protective Functions and Troubleshooting
5
Maintenance Operations
*1. The reset command is not accepted until approximately 10 seconds after the trip occurs (protection function
works).
*2. The reset command is not accepted if the EEPROM error
occurs. Turn off the power once. If you find
E08 when turning on the power again, it is possible that the memory element has been broken or the
parameters have not been memorized correctly. Perform the user initialization to set the parameters again.
*3. The reset command through the RS terminal or STOP/RESET key is not accepted. Turn off the power.
Braking
resistor
overload
trip
Shuts off the output and displays an
error if the usage rate of
regenerative braking circuit exceeds
the b090 set value.
Is there any rapid deceleration?
(Increase the deceleration time.)
Is the operation cycle frequent?
(Increase the operation cycle.)
Is the usage rate setting of the regenerative
braking function low?
(Set to an appropriate level.)
Note: Pay attention to the allowable power of
the resistor.
Overvoltage
trip
Extremely high DC voltage between
P/+2 and N/- may result in failure.
This function therefore shuts off the
output and displays an error if the DC
voltage between P/+2 and N/-
exceeds the specified level because
of regenerative energy from the motor
or increase of the incoming voltage
during operation.
Trips when the DC voltage between
P/+2 and N/- reaches approximately
400 V DC for 200-V class, and 800 V
DC for 400-V class.
Is there any rapid deceleration?
(Increase the deceleration time.)
Is there any ground fault?
(Check the output wires and motor.)
Has the motor been rotated from the load
side?
(Reduce regenerative energy.)
EEPROM
error
*2 *3
Shuts off the output and displays an
error if an error occurs in the built-in
EEPROM because of external noise
or abnormal temperature rise.
Note: It may become a CPU error
depending on the case.
Is there any large noise source around?
(Countermeasures against noise)
Has the cooling efficiency been reduced?
(Check that there is no clogging in the cooling
fin and clean it.)
(Replace the cooling fan.)
Name
Description
Display on
Digital
Operator
Check point and remedy
Reference
page
ek0k6.
ek0k7.
ek0k8.
ek0k8.
Name
Description
Display on
Digital
Operator
Check point and remedy
Reference
page
Undervoltage
trip
Shuts off the output if the incoming
voltage drops below the specified
level. This is because the control
circuit fails to work properly when
the incoming voltage to the Inverter
drops.
Trips when the DC voltage between
P and N drops to approximately 175
V DC for 200-V class, and 345 V DC
for 400-V class.
Has the power supply voltage
decreased?
(Check the power supply.)
Is the power supply capacity sufficient?
(Check the power supply.)
Has the thyristor been broken?
(Check the thyristor.)
⎯
*1. The reset command through the RS terminal or STOP/RESET key is not accepted. Turn off the power.
*2. The reset operation via the Digital Operator is not accepted. Be sure to reset via the RS terminal.
ek0k9.
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Page 108: ......
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Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
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Page 437: ...Index ...
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