Siemens SINAMICS DCM - Drive: Master Control by PLC Missing; Drive: Master Control on Command Present; Drive: Sampling Times and Basic Clock Cycle Do Not Match

4 Faults and alarms
4.2 List of faults and alarms
SINAMICS DCM
946 List Manual (LH8), 02/2015, 6RX1800-0ED76
A07089 Changing over units: Function module activation is blocked because the units have
been changed over
Message value: -
Message class: Error in the parameterization / configuration / commissioning procedure (18)
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.
F07110 Drive: Sampling times and basic clock cycle do not match
Message value: Parameter: %1
Message class: Error in the parameterization / configuration / commissioning procedure (18)
Drive object: All objects
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: The parameterized sampling times do not match the basic clock cycle.
Fault value (r0949, interpret decimal):
The fault value specifies the parameter involved.
See also: r0110, r0111, p0115
Remedy: Enter the current controller sampling times so that they are identical to the basic clock cycle, e.g. by selecting p0112.
Note which basic clock cycle is selected in p0111.
The sampling times in p0115 can only be changed manually in the sampling times pre-setting "Expert" (p0112).
See also: r0110, r0111, p0112, p0115
A07200 Drive: Master control ON command present
Message value: -
Message class: Error in the parameterization / configuration / commissioning procedure (18)
Drive object: DC_CTRL, DC_CTRL_R, DC_CTRL_R_S, DC_CTRL_S
Reaction: NONE
Acknowledge: NONE
Cause: The ON/OFF1 command is present (no 0 signal).
The command is either influenced via binector input p0840 (current CDS) or control word bit 0 via the master control.
Remedy: Switch the signal via binector input p0840 (current CDS) or control word bit 0 via the master control to 0.
F07220 (N, A) Drive: Master control by PLC missing
Message value: -
Message class: Communication error to the higher-level control system (9)
Drive object: DC_CTRL, DC_CTRL_R, DC_CTRL_R_S, DC_CTRL_S
Reaction: OFF1 (NONE, OFF2, OFF3, STOP2)
Acknowledge: IMMEDIATELY
Cause: The "master control by PLC" signal was missing in operation.
- interconnection of the binector input for "master control by PLC" is incorrect (p0854).
- the higher-level control has withdrawn the "master control by PLC" signal.
- data transfer via the fieldbus (master/drive) was interrupted.
Remedy: - check the interconnection of the binector input for "master control by PLC" (p0854).
- check the "master control by PLC" signal and, if required, switch in.
- check the data transfer via the fieldbus (master/drive).
Note:
If the drive should continue to operate after withdrawing "master control by PLC" then fault response must be
parameterized to NONE or the message type should be parameterized as alarm.
Reaction upon N: NONE
Acknowl. upon N: NONE