Delta VFD040EL43W - Page 63

Chapter 4 Parameters  VFD-EL-W
4-21
Parameter
Explanation Settings Default Customer
10.20
Erroneous PID Feedback
Deviation Level Action
0: Warn and keep operating
1: Warn and coast to stop
2: Warn and ramp to stop
3: Ramp to stop and restart after Pr.10.21
delay time (No display of error and
warning)
4: Ramp to stop and restart after Pr.10.21
delay time. The number of times of restart
is limited by Pr.10.50 (Number of Times of
Restart after PID Fault).
0
10.21
Restart Delay Time after
Erroneous PID Deviation
Level
0–9999 sec. 60
10.22 Set Point Deviation Level 0–100% 0
10.23
Detection Time of Set
Point Deviation Level
0–9999 sec. 10
10.24
Deviation Level of Liquid
Leakage
0–50% 0
10.25
Liquid Leakage Change
Detection
0–100% (0: disable) 0
10.26
Time Setting for Liquid
Leakage Change
0.1–10.0 sec. (0: disable) 0.5
10.35
Multi-Pump Control
Mode
0: Disable
1: Fixed Time Circulation (alternative
operation)
2: Fixed quantity control (multi-pump
operating at constant pressure)
0
10.36 Multi-pump ID
0: Multi-pump control mode is disabled
1: Master
2–4: Slave
0
10.37
Multi-pump’s Fixed Time
Circulation Period
1–65535 (minute) 60
10.38
Frequency to Start
Switching Pumps
0.00 Hz–Fmax 60.00
10.39
Time Detected When
Pump Reaches the
Starting Frequency
0.0–3600.0 sec. 1
10.40
Frequency to Stop
Switching Pumps
0.00 Hz–Fmax 48.00
10.41
Time Detected When
Pump Reaches the
Stopping Frequency
0.0–3600.0 (sec.) 1.0
10.42
Pump’s Frequency at Time-
out (Disconnection)
0.00 Hz–Fmax 0.00
10.43 Pump’s Error Treatment
bit0: Determines whether the erroneous pump
switches to an alternative pump when an
error occurs in the running pump
0: All pumps stop
1: Switch to an alternative pump
1