Siemens SINAMICS V90 Operating Instructions Manual page 337

Fault
F7599: Encoder 1: Adjust-
ment not possible
Reaction: OFF1 (NONE,
OFF2, OFF3)
Acknowledgement:
IMMEDIATELY
F7800 Drive: No power unit
present
Reaction: NONE
Acknowledgement:
IMMEDIATELY
F7801: Motor overcurrent
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F7802: Infeed or power unit
not ready
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002
Cause
The maximum encoder value times the
factor to convert the absolute position from
increments to length units (LU) has ex-
ceeded the value range (-2147483648 ...
2147483647) for displaying the position
actual value.
The power unit parameters cannot be read
or no parameters are stored in the power
unit.
The permissible motor limit current was
exceeded.
Effective current limit set too low.
•
Current controller not correctly set.
•
Motor was braked with an excessively
•
high stall torque correction factor.
Up ramp was set too short or the load
•
is too high.
Short-circuit in the motor cable or
•
ground fault.
Motor current does not match the cur-
•
rent of Motor Module.
After an internal power-on command, the
infeed or drive does not signal ready be-
cause of one of the following reasons:
Monitoring time is too short.
•
DC link voltage is not present.
•
Associated infeed or drive of the signal-
•
ing component is defective.
11.2 List of faults and alarms
Remedy
If the value for the maximum possible abso-
lute position (LU) is greater than 4294967296,
then it is not possible to make an adjustment
due to an overflow.
For rotary encoders, the maximum possible
absolute position (LU) is calculated as fol-
lows:
Motor encoder with position tracking:
IPos: p29247 * p29244
•
PTI: 1048576 * p29012[X] * p29244
•
/ p29013
Motor encoder without position tracking:
For multiturn encoders:
•
– IPos: p29247 * p29248 * 4096
/ p29249
– PTI: 1048576 * p29012[X] * 4096
/ p29013
For singleturn encoders:
•
– IPos: p29247 * p29248 / p29249
– PTI: 1048576 * p29012[X] / p29013
Carry out a POWER ON (power off/on) for
•
all components.
Change the module.
•
Reduce the stall torque correction factor.
•
Increase the up ramp or reduce the load.
•
Check the motor and motor cables for
•
short-circuit and ground fault.
Check the Motor Module and motor com-
•
bination.
Ensure that there is a DC link voltage.
•
Check the DC link busbar. Enable the in-
feed.
Replace the associated infeed or drive of
•
the signaling component.
Diagnostics
337