Encoderless Operation Not Possible For The Selected Pulse Frequency; Units Changeover: Parameter Limit Violation Due To Units Changeover; Drive: Upper Torque Limit Less Than The Lower Torque Limit - Siemens SINAMICS S210 Operating Instructions Manual

Faults and alarms
13.2 List of faults and alarms
F07087 Drive: Encoderless operation not possible for the selected pulse frequency
Message value: Parameter: %1
Drive object: All objects
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: Encoderless operation is not possible for the selected pulse frequency (p1800).
Encoderless operation is activated under the following conditions:
- the changeover speed for encoderless operation (p1404) is less than the maximum speed (p0322).
- a control type with encoderless operation has been selected (p1300).
- encoder faults of the motor encoder result in a fault response with encoderless operation (p0491).
Remedy: Increase the pulse frequency (p1800).
Note:
In encoderless operation, the pulse frequency must be at least as high as one quarter of the current controller clock cycle
frequency (1/p0115[0]).
F07088

Units changeover: Parameter limit violation due to units changeover

Message value: Parameter: %1
Drive object: All objects
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: A changeover of units was initiated. This resulted in a violation of a parameter limit
Possible causes for the violation of a parameter limit:
- When rounding off a parameter corresponding to its decimal places, the steady-state minimum limit or maximum limit
was violated.
- inaccuracies for the data type "FloatingPoint".
In these cases, when the minimum limit is violated then the parameter value is rounded up and when the maximum limited
is violated the parameter value is rounded down.
Fault value (r0949, interpret decimal):
Diagnostics parameter r9451 to display all parameters whose value had to be adapted.
Remedy: Check the adapted parameter values and if required correct.
A07089 Changing over units: Function module activation is blocked because the units have been changed
over
Message value: -
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: An attempt was made to activate a function module. This is not permissible if the units have already been changed over.
Remedy: Restore units that have been changed over to the factory setting.
F07090

Drive: Upper torque limit less than the lower torque limit

Message value: -
Drive object: All objects
Reaction: OFF2 (NONE, OFF1, OFF3)
Acknowledge: IMMEDIATELY
Cause: The upper torque limit is lower than the lower torque limit.
Remedy: P1 must be >= P2 if parameter P1 is connected to p1522 and parameter P2 to p1523.
A07091 Drive: determined current controller dynamic response invalid
Message value: %1
430
SINAMICS S210 servo drive system
Operating Instructions, 12/2017, A5E41702836B AA