OmarLift SIEMENS SINAMICS V20, Manual

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Siemens V20_EN_rev01-08032019.docx 11-12

If the fault has not been cleared and the button is pressed, the faults screen displays again.

If there is no key press for 60 seconds.
If a fault is active and there has been no key press for 60 seconds, the backlight (P0070) flashes.
11.1
FAULT CODES
Fault Cause Remedy
F1
Overcurrent

Motor power (P0307) does not corre-
spond to the inverter power (r0206).

Motor lead short circuit

Earth faults
r0949 = 0: Hardware reported
r0949 = 1: Software reported
r0949 = 22: Hardware reported
Check the following:

Motor power (P0307) must correspond to
inverter power (r0206).

Cable length limits must not be exceed-
ed.

Motor cable and motor must have no
shortcircuits or earth faults.

Motor parameters must match the motor
in use.

Value of stator resistance (P0350) must
be

correct.

Motor must not be obstructed or over-
loaded.

Increase ramp-up time (P1120)

Reduce starting boost level (P1312)
F2
Overvoltage

Main supply voltage too high

Motor is in regenerative mode
r0949 = 0: Hardware reported
r0949 = 1 or 2: Software reported
Check the following:

Supply voltage (P0210) must lie within
limits

indicated on rating plate.

Ramp-down time (P1121) must match
inertia of load.

Required braking power must lie within
specified limits.

Vdc controller must be enabled (P1240)
and

parameterized properly.
Note :
Regenerative mode can be caused by fast
ramp downs or if the motor is driven by an
active load.
Higher inertia requires longer ramp times;
otherwise, apply braking resistor.
F3
Undervoltage

Main supply failed.

Shock load outside specified limits.
r0949 = 0: Hardware reported
r0949 = 1 or 2: Software reported
Check supply voltage.
F4
Inverter overtem-
perature

Inverter overloaded

Ventilation inadequate

Pulse frequency too high

Ambient temperature too high

Fan inoperative
Check the following:

Load or load cycle too high?

Motor power (P0307) must match invert-
er power (r0206)

Pulse frequency must be set to default
value

Ambient temperature too high?

Fan must turn when inverter is running
F5
Inverter I
2
t

Inverter overloaded.

Load cycle too demanding.
Check the following:

Load cycle must lie within specified limits.