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Delta VFD-EL-W Series - Over-Voltage (ov) Troubleshooting

Delta VFD-EL-W Series
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Chapter 4 ParametersVFD-EL-W
156
Pr.
Function
Setting Range
Default
User's
Master
User’s
Slave
Note
mA)
10.02
Proportional Gain
(P)
0.0–10.0
1.0
1.2
1.2
Adjust the parameter
according to customer’s
applications
10.03
Integral Time (I)
0.00–100.0 sec.
1.00
0.7
0.7
10.04
Differential Time
(D)
0.00–1.00 sec.
0.00
-
-
10.12
PID Feedback
Signal Error
Deviation Level
1.0–50.0%
10.0
5
5
When the pressure
feedback is < 0.5 kg and
time > 15 sec., follow the
settings for Pr.10.20.
10.13
PID Feedback
Signal Error
Deviation Detection
Time
0.1–300.0 sec.
5.0
15
15
10.18
PID Feedback
Physical Quantity
1.0–99.9
99.9
10
10
Sets the maximum
feedback of PID physical
quantity value to be 10
kg.
10.19
PID Calculation
Mode Selection
0: Serial connection
1: Parallel connection
0
1
1
The parallel PID
calculation mode applies
for the constant pressure
water supply control.
10.20
PID Error Deviation
Treatment
0: Warn and continue operation
(no treatment)
1: Coast to stop
2: Ramp to stop
3: Ramp to stop and restart after
Pr.10.21 delay time
0
3
3
When there is water
shortage or unusual
pressure feedback, the
pump stops running for
1800 sec. (30 minutes)
until the pressure
feedback is back to
normal.
10.21
PID Error Deviation
Restart Delay Time
1–9999 sec.
60
1800
1800
10.22
Set Point Deviation
Level
0–100%
0
5
5
If the feedback value
and the set point
deviation are both is
0.15 kg (3 kg × 5% =
0.15 kg), that is, when
feedback value is ≥ 2.85
kg and time > 10
seconds, the AC motor
drive starts to decelerate
to stop. The deceleration
time is according to the
Deceleration Time 2 set
in Pr.01.12. When the
feedback value is less
than 2.85 kg, the drive
starts to run.
10.23
Set Point Stop
Detection Time
1–9999 sec.
10
10
10
10.24
Deviation Level of
Liquid Leakage
0–50%
0
33
33
Liquid Leakage:
Assume that when the
drive does not run and is
in a constant pressure
status, the variation of
the feedback value is
less than 0.12 kg (3 kg ×
4% = 0.12 kg) within 2
second. When the
feedback value
continues to decrease to
make the deviation of
the set point be less
than 0.99 kg (3 kg ×
33% = 0.99 kg), that is,
when the feedback value
is less than 2.01 kg, the
drive starts to run.
10.25
Liquid Leakage
Change Detection
0: Disable
0–100%
0
4
4
10.26
Liquid Leakage
Change Detection
Time
0: Disable
0.1–10.0 sec.
0.5
2
2

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