Units Changeover: Parameter Limit Violation - Reference Value Change; Drive: Encoderless Operation Not Possible For Selected Pulse Freq.; Units Changeover: Parameter Limit Violation Due To Units Changeover - Siemens Sinamics S120 Diagnostic Manual

207086 <location>Units changeover: Parameter limit violation due to reference value change
Message value: Parameter: %1
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SERVO_COMBI, SERVO_SINUMERIK828, SIC_COMBI,
SIC_SINUMERIK_828
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: A reference parameter was changed in the system. This resulted in the fact that for the parameters involved, the
selected value was not able to be written in the per unit representation (cause: e.g. the steady-state minimum/maxi-
mum limit or that defined in the application was violated). The values of the parameters were set to the corresponding
violated minimum/maximum limit or to the factory setting.
Fault value (r0949, parameter):
Diagnostics parameter r9450 to display the parameters that were not able to be re-calculated.
See also: p0304, p0305, p0310, p2000, p2001, p2002, p2003, r2004
Remedy: Check the adapted parameter value and if required correct.
See also: r9450 (Reference value change parameter with unsuccessful calculation)
207087 <location>Drive: Encoderless operation not possible for the selected pulse frequency
Message value: Parameter: %1
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
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).
See also: p0491 (Motor encoder fault response ENCODER), p1300 (Open-loop/closed-loop control operating mode),
p1404 (Encoderless operation changeover speed)
Remedy: Increase the pulse frequency (p1800).
Note:
In encoderless operation, the pulse frequency must be at least as high as half the current controller clock cycle (1/
p0115[0]).
207088 <location>Units changeover: Parameter limit violation due to units changeover
Message value: Parameter: %1
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SERVO_COMBI, SERVO_SINUMERIK828, SIC_COMBI,
SIC_SINUMERIK_828
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: A changeover of units was initiated.
Possible causes for the violation of a parameter limit are:
- when rounding off a parameter corresponding to its decimal places, the steady-state minimum 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.
See also: p0100 (IEC/NEMA mot stds), p0349 (System of units, motor equivalent circuit diagram data), p0505 (Select-
ing the system of units)
Remedy: Check the adapted parameter values and if required correct.
See also: r9451 (Units changeover adapted parameters)
Alarms
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
SINAMICS alarms
641