VD300 Series Inverter User Manual
Parameter Description
- 129 -
P08.17
Time
Output frequency
P08.18
Fig 6.8-4 Schematic diagram if PID preset output
P08.20
Feedback
Wire-break
Detection Value
0.0%: No detection
0.1%~100.0%
0.0%
○
P08.21
Feedback
Wire-break
Detection Time
0.0s~20.0s
0.0s
○
If P08.20 set to a non-zero value, when the feedback signal is less than P08.20 set detection value
but exceeding P08.21 setting time, it decided the PID feedback break line, system will report the PID
feedback break line breakdown (Er023).
P08.22
Feedback
Over-limit
Detect Value
0.0%: No detection
0.1%~100.0%
0.0%
○
P08.23
Feedback Over-limit
Detection Time
0.0s~20.0s
0.0s
○
When the feedback signal is bigger than P08.22 set detection value but exceeding P08.23 setting
time, it decided the PID feedback exceeding limit, system will report the PID feedback exceeding limit
breakdown (Er022).
P08.24
PID Dormant Threshold
P08.25~100.0% (PID feedback)
100%: Cancel the sleep function
100.0%
○
P08.25
PID Revive Threshold
0.0%~ P08.24 (PID feedback)
0.0%
○
P08.26
PID Dormant Waiting
Time
0.0s~6000.0s
1.0s
○
P08.27
PID Revive Waiting Time
0.0s~6000.0s
0.5s
○
PID dormancy: when the system detects that the PID feedback value is higher than PID dormancy
threshold and maintain time exceeding than PID dormant waiting time , inverter will start decelerate
according to the time set by the deceleration time, and later enter into a dormant state when
frequency drop to zero. If in the above process PID feedback below the PID dormancy threshold, PID
return back to regulating state, dormancy wait counting clear up. When this parameter is set to 100%,
the PID dormancy function is disabled.
PID awakening: when inverter is in PID dormant state, once if PID feedback below the PID revive
threshold and maintain time exceeding than PID revive waiting time, inverter will exit dormant state
and return back to PID regulating mode.
P08.28
PID Calculation Mode
0: Stop No calculation
1: Stop calculation
0
○
Used to decide whether to continue deal with PID arithmetic when inverter in stop status. General
applications, in stop state inverter should stop PID calculation. The stop operation selection might be
useful in constant pressure water supply system and other special occasions.
Содержание VD300 Series
Страница 2: ......