5-4
5-1 Protective Functions and Troubleshooting
5
Maintenance Operations
Temperature
error when
the rotation
speed of the
cooling fan
decreases
Appears if a decrease of the cooling
fan rotation speed has been
detected when a temperature error
occurs.
Has the cooling efficiency been reduced?
(Replace the cooling fan.)
Is there any clogging in the fin?
(Clean the fin.)
Temperature
error
Shuts off the output if the
temperature has risen in the main
circuit because of the high ambient
temperature.
Have you installed the Inverter vertically?
(Installation check)
Is the ambient temperature high?
(Decrease the ambient temperature.)
⎯
Gate array
communications
error
Trips when a fault is detected in
communication behavior between
the built-in CPU and the gate array.
Is there any large noise source around?
(Countermeasures against noise)
Has the cable been disconnected?
(Check the connector.)
Input open
phase trip
Prevents Inverter damage due to
input phase loss when the input
phase loss protection selection is
enabled (b006=01), and trips.
Trips when the phase loss time is
approximately 1 s or more.
Is there any input power supply phase
loss?
(Check the input wiring.)
Is there a contact failure for MCB and/or
Mg?
(Replace MCB, Mg.)
Main circuit
error
*1
Trips when the gate array cannot
confirm IGBT ON/OFF because of a
main element failure, a load short
circuit, or an erroneous operation
resulting from noise interfusion.
Is there any large noise source around?
(Countermeasures against noise)
Has the main element been damaged?
Is there any output short-circuit?
(Check the IGBT.)
The Inverter has a failure. (Repair)
IGBT error
Shuts off the Inverter output to
protect the main element when a
momentary overcurrent,
temperature error in the main
element, or drop of the main
element driving power supply
occurs.
(Retry operation cannot be
performed for this trip.)
Is there any output short-circuit? (Check
the output wires.)
Is there any ground fault?
(Check the output wires and motor.)
Has the main element been damaged?
(Check the IGBT.)
Is there any clogging in the fin?
(Clean the fin.)
⎯
Thermistor
error
Shuts off the Inverter output when
detecting the thermistor resistance
value inside the motor connected to
the TH terminal and resulting motor
temperature rise.
Is the motor temperature too high?
(Check the motor temperature.)
Is there any damage to the thermister
inside the motor?
(Check the thermistor.)
Is there any noise interfusion in the
thermister signal?
(Separate the wiring.)
Name
Description
Display on
Digital
Operator
Check point and remedy
Reference
page
*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.
ek2k0.
ek2k1.
ek2k3.
ek2k4.
ek2k5.
ek3k0.
ek3k5.
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 ...
Page 48: ......
Page 108: ......
Page 324: ......
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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