YASKAWA HV600 Manual page 216

2.3 b: Application
b5-38:
b5-71:
■
b5-82: Feedback Loss 4～20mA Detect Sel
No.
Name
(Hex.)
b5-82 Feedback Loss 4～20mA
Detect Sel
(31B0)
0 : Disabled
Note:
Drives with b5-82 = 0 and Y9-02 ≠ 3 [System Feedback Source ≠ Network Only] will not have feedback loss detection and will continuously
send the analog PID feedback to the network when the signal is good or bad.
1 : Alarm Only
2 : Fault
Note:
When b5-82 = 2 and Y9-02 ≠ 3, PID feedback detection will trigger an alarm if one of these conditions is true:
• The drive is in HAND Mode
• There is no lead drive on the network
• The drive is not in AUTO Mode
3 : Run At b5-83
Note:
If you enable Wire-Break detection, set b5-83 [Feedback Loss GoTo Frequency] < Y9-09 [Staging Frequency Level], and set b5-82 = 3, and
you lose network feedback, the network will request for a de-stage. During an FLGT [Feedback Loss, Go To Freq b5-83] alarm, the lag
drives that are operating will continue to operate at the speed set in Y9-05 [Lag Drive Mode].
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.
216
Figure 2.28 Transducer Scaling Lower Limit
V/f OLV/PM EZOLV OLV/PM
Sets the drive to do a 4 to 20 mA wire-break detection on the analog input set for PID feedback.
U5-01:
Description
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
Default
(Range)
2
(0 - 3)