Original notice - A1.20
55
9.
Maintenance/Inspection
If errors occur with this product, identify the cause of errors, and perform recovery
work.
Errors can be checked by PWR (Green), ERR (Red), and signals from CN2#4.
Identify the cause of errors by checking LEDs and error signal output on driver cards,
and restore the product.
9-1.
Driver card LED display
and error countermeasures
Checking the
driver card status
〔
CBK-109
〕
For carrier wheel transfer
LED display explanation
Error details
Errors will be also released when the power is OFF (for two seconds or more).
：
ON
：
Blinking
（
1Hz
）
：
Blinking
（
6Hz
）
：
OFF
After decreasing to the recovery temperature,
VZLWFK21ĺ2))ĺ21RU2))ĺ21ĺ2))
on CN2#2
After decreasing to the recovery temperature,
VZLWFK21ĺ2))ĺ21RU2))ĺ21ĺ2))
on CN2#2
6WDUWXSWKHXQLWE\581ĺ
6723ĺ581RQ&1
6WDUWXSWKHXQLWE\581ĺ
6723ĺ581RQ&1
The unit starts up within 1min
Causes
Supply 24V DC
−
−
（
Normal operation
）
No power supply
Turn off the power, and replace
the driver card
Damage to
driver cards
Connector
disconnected
When one minute has elapsed after decreasing to the recovery temperature,
the error signal is released, and the unit starts up instantly
Thermal protection has
worked due to a
temperature rise of driver
cards or MDR
Secure the power supply voltage of 18V or more
The unit starts up instantly
The unit starts up instantly
When 4sec or more have elapsed after an error
RFFXUVVZLWFK21ĺ2))ĺ21RU2))ĺ21ĺ2))
on CN2#2
6WDUWXSWKHXQLWE\581ĺ
6723ĺ581RQ&1
Refer to P.35
ERR
（
Red
）
CN2#4
（
Error signal
）
SW1#4
OFF
SW1#4
ON
PWR
（
Green
）
⇔
A
M
：
Automatic recovery setting (SW1#1 OFF <factory setting>)
：
Manual recovery setting (SW1#1 ON)
／
A
M
How to release error signals
Recovery operation
MDR disconnection
Turn off the power, and connect the connector
Turn off the power, and replace the MDR
Refer to P.58
Thermal error
MDR has been locked,
and 0.5sec have elapsed
Lock error
Power supply voltage has
been 15V or less for 1sec,
or decreases to 15V or
less 5 times within 500ms
Low voltage error
A
A
When 4sec or more have elapsed after an error occurs, release the error signal,
DQGVWDUWXSWKHXQLWE\581ĺ6723ĺ581RQ&1
After securing the power supply voltage of 18V or more, release the error signal,
DQGVWDUWXSWKHXQLWE\581ĺ6723ĺ581RQ&1
After securing the power supply voltage of 18V
RUPRUHVZLWFK21ĺ2))ĺ21RU2))ĺ21ĺ
OFF on CN2#2
M
6WDUWXSWKHXQLWE\581ĺ
6723ĺ581RQ&1
Voltage applied to MDR has been 30V or less
for 1sec
Voltage applied to the MDR
has been 40V or more for
2sec, or has been 60V or
more for 0.1sec
Back EMF error
After voltage applied to MDR has been 30V or less for 1sec, release the error
VLJQDODQGVWDUWXSWKHXQLWE\581ĺ6723ĺ581RQ&1
After voltage applied to MDR has been 30V
RUOHVVIRUVHFVZLWFK21ĺ2))ĺ21RU
2))ĺ21ĺ2))RQ&1
M
6WDUWXSWKHXQLWE\581ĺ
6723ĺ581RQ&1
Refer to P.33, 35
Refer to P.35
7-3. Wiring
7-3. Wiring
7-2. Installation
7-3. Wiring
No error signal
9-2. Before replacement work
OFF (1.5 sec)
Blinking
twice
＊
This error may occur when the
MDR has rotated at speeds
faster than the setting speed.
〔
CBK-109
〕
Error details
A current of 7A or
more flows in the MDR
After decreasing to the recovery temperature, release the error signal,
DQGVWDUWXSWKHXQLWE\581ĺ6723ĺ581RQ&1
After decreasing to the recovery temperature, release the error signal,
DQGVWDUWXSWKHXQLWE\581ĺ6723ĺ581RQ&1
■
When error signals have been released by CN2#1 (RUN / STOP), the F-RAT instantly
starts up when RUN is input.
■
When the power supply voltage becomes insufficient, operation may be disabled, or an
unexpected operation may occur.
■
7RUHVWDUWWKH)5$7VZLWFKWKH21ĺ2))ĺ212))ĺ21ĺ2))581ĺ6723
ĺ581VLJQDOVDWLQWHUYDOVRIPVRUPRUH
F-RAT-NX75 Technical document
Safety precautions
Advance preparation
Product check
Structures
Installation/Wiring
Control/Operation
Maintenance/Inspection
Tr
oubleshooting
Appendix
Output
Output
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Output
Output
Output
Output
Output
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