Troubleshooting
6
6.5 Minor Faults/Alarms
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 361
6.5 Minor Faults/Alarms
This section gives information about the causes and possible solutions when a minor fault or alarm occurs. Use
the information in this table to remove the cause of the minor fault or alarm.
Code Name Causes Possible Solutions
AEr Station Address Setting
Error
The node address for the option card is
not in the permitted setting range.
• For CC-Link communication, set F6-10 [CC-
Link Node Address] correctly.
• For MECHATROLINK communication, set F6-
20 [MECHATROLINK Station Address]
correctly.
• For CANopen communication, set F6-35
[CANopen Node ID Selection] correctly.
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name Causes Possible Solutions
bAT Keypad Battery Low
Voltage
The keypad battery voltage is low. Replace the keypad battery.
Note:
• If detected, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will switch ON.
• Set o4-24 [bAT Detection Selection] to enable/disable bAT detection.
Code Name Causes Possible Solutions
bb Baseblock An external baseblock command was
entered through MFDI terminal S1 to
S8, and the drive output stopped as
shown by an external baseblock
command.
Examine the external sequence and timing of the
baseblock command input.
Note:
The drive will not output an alarm signal for this alarm.
Code Name Causes Possible Solutions
bCE Bluetooth Communication
Error
The smart device with DriveWizard
Mobile is too far from the keypad.
Use the smart device within 10 m (32.8 ft.) from
the keypad.
Note:
bCE can occur when the smart device is 10 m or
nearer to the keypad depending on the
specifications of the smart device.
Radio waves from a different device are
causing interference with
communications between the smart
device and keypad.
Make sure that no device around the keypad uses
the same radio bandwidth (2400 MHz to 2480
MHz), and prevent radio interference.
Note:
• The drive detects this error when using the Bluetooth LCD keypad to operate the drive with a smart device.
• If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
• Use o2-27 [bCE Detection selection] to enable and disable bCE detection.
Code Name Causes Possible Solutions
boL Braking Transistor
Overload
The duty cycle of the braking transistor
is high (the regeneration power or
repetition frequency is high).
• Install a braking unit (CDBR series).
• Install a regenerative converter.
• Increase the deceleration time.
You enabled the protective function for
the braking transistor when you have a
regenerative converter.
Set L8-55 = 0 [Internal DB TransistorProtection =
Disable].
The braking transistor in the drive is
broken.
Replace the drive.
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name Causes Possible Solutions
bUS Option Communication
Error
The communications cable wiring is
incorrect.
Correct wiring errors.
There is a short circuit or the
communications cable is not connected.
• Repair short circuits and connect cables.
• Replace the defective communications cable.
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