YASKAWA HV600 Installation & Startup page 131

Code Name
bb Baseblock
Note:
The drive will not output a minor fault signal for this alarm.
Code Name
bCE Bluetooth Communication Error
Note:
• The drive detects this error when you use a smartphone or tablet and a Bluetooth LCD keypad to operate the drive.
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• Use o2-27 [bCE Detection selection] to enable and disable bCE detection.
Code Name
BuDif Main Fdbk Lost, Using Diff Fdbk
Note:
• The drive detects this error if it does not receive the PID Feedback signal and it uses Differential Feedback [H3-xx = 2D] as backup.
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name
Bu-Fb Main Fdbk Lost Using Backup Fdbk
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
BuFbl Backup Fdbk Lost Chk/Repl Xducer
Note:
• The drive detects this error if it does not receive the PID Feedback Backup signal.
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name
bUS Option Communication Error
YASKAWA TOEPYAIH6B01A HV600 AC Drive Narrow Bypass Installation & Startup
Causes
An external baseblock command was entered through
one of the MFDI terminals Sx, and the drive output
stopped as shown by an external baseblock command.
Causes
The smartphone or tablet with DriveWizard Mobile is
too far from the keypad.
Radio waves from a different device are causing
interference with communications between the
smartphone or tablet and keypad.
Causes
Parameter Y4-41 = 1 [Diff Lvl Src Fdbk Backup
Select = Enabled] and the drive detected a wire-break
on the analog input terminal set for PID Feedback
[H3-xx = B].
Main PID Feedback Transducer is broken.
Causes
The drive detected wire-break on the analog input
terminal set to H3-xx = B [MFAI Function Selection
= PID Feedback].
Main PID Feedback Transducer is broken.
Causes
The drive detected wire-break on the analog input
terminal set for PID Feedback Backup [H3-xx = 24].
Backup PID Feedback Transducer is broken.
Parameter Y4-41 = 1 [Diff Lvl Src Fdbk Backup
Select = Enabled] and the drive detected a wire-break
on the analog input terminal set for Differential Level
Source [H3-xx = 2D].
Parameter Y4-41 = 1 and the Differential PID
Feedback Transducer is broken.
Causes
The communications cable wiring is incorrect.
There is a short-circuit in the communications cable
or the communications cable is not connected.
Electrical interference caused a communication data
error.
The option card is incorrectly installed to the drive.
5.6 Minor Faults/Alarms
Possible Solutions
Examine the external sequence and timing of the baseblock
command input.
Possible Solutions
Move to 10 m (32.8 ft) or less from the keypad.
Note:
bCE can occur when the smartphone or tablet is 10 m (32.8 ft)
or nearer to the keypad for different smartphone and tablet
specifications.
Make sure that no device around the keypad uses the same radio
bandwidth (2400 MHz to 2480 MHz), and prevent radio
interference.
Possible Solutions
Examine the connection of the Main PID Feedback Transducer.
Replace Main PID Feedback Transducer.
Possible Solutions
Examine the connection of the Main PID Feedback Transducer.
Replace Main PID Feedback Transducer.
Possible Solutions
Examine the connection of the Differential PID Feedback
transducer.
Replace Backup PID Feedback Transducer.
Examine the connection of the Differential PID Feedback
transducer.
• Replace the Differential PID Feedback Transducer.
• Set Y4-41 = 0 [Disabled].
Possible Solutions
Correct wiring errors.
• Repair short circuits and connect cables.
• Replace the defective communications cable.
• Examine the control circuit lines, main circuit lines, and ground
wiring, and decrease the effects of electrical interference.
• Make sure that a magnetic contactor is not the source of the
electrical interference, then use a Surge Protective Device if
necessary.
• Use only the recommended cables or other shielded line. Ground
the shield on the controller side or the drive input power side.
• Separate the communication wiring from drive power lines, and
install a noise filter to the input side of the power supply for
communication.
• Decrease the effects of electrical interference from the controller.
Correctly install the option card to the drive.
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