YASKAWA LA500, Техническое руководство

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7.5 Minor Faults/Alarms
184 YASKAWA SIEPYEULA5001C LA500 Technical Manual
7.5 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
bAT Keypad Battery Low Voltage
The keypad battery voltage is low. Replace the keypad battery.
Note:
•
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
•
Parameter o4-24 [bAT Detection Selection] enables and disables bAT detection.
Code Name Causes Possible Solutions
bb Baseblock An external baseblock command was entered
through MFDI terminal S1 to S7, 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 a minor fault signal for this alarm.
Code Name Causes Possible Solutions
bCE Bluetooth Communication Error
The smartphone or tablet with DriveWizard Mobile
installed is too far from the keypad. Use the smartphone or tablet 10 m (32.8 ft) or nearer to the
keypad.
Note:
bCE can occur when the smartphone or tablet is 10 m or
nearer to the keypad depending on the specifications of the
smartphone or tablet.
Radio waves from a different device are causing
interference with the communication between the
smartphone or tablet 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 you operate the drive with a smartphone or tablet with a Bluetooth LCD Keypad.
• If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will activate.
• Parameter o2-27 [bCE Detection selection] enables and disables 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 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 Selection =
Disable] .
The braking transistor in the drive is broken. Replace the drive.
Note:
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name Causes Possible Solutions
CrST Cannot Reset The drive received a fault reset command when a
Run command was active. Turn off the Run command then de-energize and re-energize the
drive.
Code Name Causes Possible Solutions
EF
FWD/REV Run Command Input
Error A forward command and a reverse command were
input at the same time for longer than 0.5 s. Examine the forward and reverse command sequence and correct
the problem.
Note:
•
If the drive detects EF , the motor will ramp to stop.
•
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
EF1 External Fault (Terminal S1)
MFDI terminal S1 caused an external fault through
an external device. 1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal S1.
External Fault [H1-01 = 2C to 2F] is set to MFDI
terminal S1, but the terminal is not in use.
Correctly set the MFDI.
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will activate.
Code Name Causes Possible Solutions
EF2 External Fault (Terminal S2) MFDI terminal S2 caused an external fault through
an external device. 1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal S2.
External Fault [H1-02 = 2C to 2F] is set to MFDI
terminal S2, but the terminal is not in use.
Correctly set the MFDI.
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will activate.