Keypad
Display
Fault Name
Cause
Possible Solution
ot2
Overtorque Detection 2
The current has
exceeded the torque
level set to P6-04 for
longer than the time set
to P6-05
1. Incorrect parameter
settings
2. Malfunction on
machinery
1. Reset P6-04 and P6-05
2. Check machinery and load
status
ov
Overvoltage
Voltage in the DC bus
exceeded the
overvoltage detection
level
1.200 V class: 410 V
2.400 V class: 820 V
1. Controller input power
has surge voltage entering
2. Machinery output short
circuit
3. Ground fault in the
output circuit causes the
DC bus capacitor to
overcharge
4. Electrical signal
interference causes
controller malfunction
5. PG cable is
disconnected
6. Incorrect PG cable
wiring
7. PG encoder wiring is
interference by electrical
signal
1. Install a DC link choke
Voltage surge can result from a
thyristor convertor and phase
advancing capacitor using the
same input power supply
2. Check the power cable, relay
terminals and terminal box
3. Correct grounding shorts and
reapply power
4. Check the solutions for
interference suppression
»Check the control circuit lines,
main circuit lines and grounding
wiring.
»If the MC is the source of
interference, connect a
suppressor to it.
5. Reconnect the cable
6. Correct the wiring
7. Separate the wiring from the
source of the electrical signal
interference. It is usually the
output lines from the controller
Uv
Undervoltage
1.Voltage in the DC bus
fell below the
undervoltage detection
level (P2-03)
2.200 V class: 190 V
3.400 V class: 380 V
1. Input power phase loss
2. Loose wiring terminals
of controller input power
3. Problem with the
voltage from the controller
input power
4. The controller main
circuit capacitors are
weakened.
5. The contactor or relay
on the soft-charge bypass
1. Correct the controller input
power wiring
2. Tighten the terminals
3. Check the voltage
a. Adjust the voltage according to
the controller input power
specifications
b. Check the main circuit
magnetic contactor if there is no
problem with the power supply
4&5. Turn on and turn off the
Содержание CPSPI3700EVF380
Страница 7: ...6 WarningLabel ...
Страница 31: ...30 Figure 4 4 4 DIP Switch RS 485 Termination Resistor OFF ON ...
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