Invt CHV190-045G-4 Инструкция по эксплуатации онлайн [141/242] 471536

Invt CHV190-030G-4 Инструкция по эксплуатации онлайн [141/242] 471534
CHV190 series special inverter for crane
- 140 -
Fault
code
Fault type Reason Solution
UV DC bus Under-voltage
1. Open phase
occurred with power
supply.
2. Momentary power
loss occurred
3. Wiring terminals for
input power supply are
loose.
4. Voltage fluctuations
in power supply are
too large.
Inspect the input
power supply or
wiring.
OL1 Motor overload
1. Motor drive heavy
load at low speed for a
long time.
2. Improper V/F curve
3. Improper motors
overload protection
threshold (Pb.03)
4. Sudden change of
load.
1. Select variable
frequency motor.
2. Check and adjust
V/F curve.
3. Check and adjust
Pb.03.
4. Check the load.
OL2 Inverter overload
1. Load is too heavy or
Acc/Dec time is too
short.
2. Improper V/F curve
3. Capacity of inverter
is too small.
1. Increase Acc/Dec
time or select bigger
capacity inverter.
2. Check and adjust
V/F curve.
3. Select bigger
capacity inverter.
SPI Input phase failure
1. Open-phase
occurred in power
supply.
2. Momentary power
loss occurred.
3. Wiring terminals
Check the wiring,
installation and power
supply.

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