YASKAWA H6B1A002, Technical Reference

Page: 223 / 794

Parameter
Details
5
5.2 b: Application
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 223
0 : Disabled
1 : Alarm Only
2 : Fault
Note:
When b5-82 = 2 , PID feedback detection will trigger an alarm if one of these conditions is true:
• The drive is in HAND Mode
•
The drive is not in AUTO Mode
3 : Run At b5-83
If the drive detects a Wire-Break, the drive will respond as specified by b5-82 .
Note:
• A: The keypad shows an FDBKL [Feedback Loss Wire Break] alarm.
• F: The drive detects an FDBKL [WIRE Break] fault.
•
R: The drive operates at b5-83 [Feedback Loss GoTo Frequency] and shows an FDBKL alarm.
b5-82
Setting
Drive Mode
OFF
Y4-17
[Utility Start
Delay]
Pre-Charge
AUTO
(Simplex)
HAND Mode
PID
Sleep Boost
Y2-08
[Delta
Feedback
Drop Level]
Sleep HAND Mode
0 - - - - - - - - -
1 A A A A A A A A A
2 A F F F F F F F A
3 A A
*1
R
*2
R R R R R A
*1 The keypad will show the FLGT [Feedback Loss, Go To Freq b5-83] alarm. The drive will run at b5-83 after Utility Delay is expired.
*2 The drive will operate at Y4-02 [Pre-Charge Frequency] while Pre-Charge is active.
Note:
•
If the drive is set in a mode where the fault will occur, the drive will detect the fault only when the drive is in operation. If the drive is not in
operation, the drive will detect an alarm. Refer to
Figure 5.27 for an example where b5-82 = 2 [Fault] and the drive is OFF.
• If the Feedback Loss fault is set to L5-42 = 1 [Feedback Loss Fault Retry Select = Retry] , the drive will use the L5-04 [Interval Method
Restart Time] timer when it Auto-Restarts.
PID Feedback Loss Detection Start Delay
You can use b5-86 [Feedback Loss Start Delay] to delay the PID Feedback Loss Detection at start. Feedback Loss
detection will still be active when b5-86 timer has started, but the drive will only detect an alarm. When b5-86
expires, the drive will use the
b5-82
setting to start the appropriate action. Refer to Figure 5.27 for more information.
b5-86: Feedback Loss Start Delay
H2-xx = B9: Transducer Loss
H3-xx = B: PID Feedback FDBKL Alarm: Feedback Loss Wire Break
FDBKL Fault: WIRE Break
Figure 5.27 Time Chart for the Wire Break Detection when b5-82 = 2 [Fault]