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Note: Analog inputs are evaluated by means of the differential amplifiers, meaning that the
minus input of the amplifiers must be connected to the ground of the respective measured
signal.
Output reference voltages P10 and N10
Output P24, for controlling the binary inputs.
This is a pure output, feeding of external voltages at these terminals is not permitted.
Output P15, 200 mA for pulse encoder power supply
24 V digital outputs can each be loaded with 100 mA via a transistor.
Generation of firing pulses for the thyristors of the armature and field power unit.
Calculation of all open-loop and closed-loop control functions for armature and field with
direct generation of the firing pulses for the thyristors.
Power interface module:
See block diagram in Section 6.3 of the Operating Instructions.
Part number: C98043-A7105/7106/7106/7108 -Lx, x stands for the module variant e.g. for
2Q/4Q and depends on the rated voltage of the SINAMICS DCM.
Input electronics power supply: 400 V: via 5U1/5W1, 5N1 open, or 230 V: connected via
5U1-5W1 and 5N1, fuses F200/F201 to protect the input. 24 V power supply for L05 option.
Terminals 105106 for E-stop
Terminals 103/104 for analog tachometer input and prescaler 159 kOhm.
Relay output terminal 109/110 for main contactor control
Recording of the fan speed monitoring XV1, XV2, XV3
Recording of the line voltage armature infeed (synchronization for the armature gating unit is
also derived from this) and output voltage armature. The voltage is recorded via the firing
pulse cables: The voltage measurement is isolated
Note: Direct measurement of the line voltage on the power unit does not result in
dependency of the assignment of the phase angle for the power unit with respect to the
electronics current supply. The electronics infeed can therefore be provided by a UPS
without reservation.--
The power infeed can have a clockwise and counter-clockwise rotating field (rotating field-
independent synchronization is provided). –End of note-
Isolation of the firing pulses to the thyristors via pulse transformer.
Power transistors to control the pulse transformers.
10 ohm load resistors for the current transformers (input X7, X8) of the actual current
sensing.
Connector XT5 for connecting temperature sensor NTC 10 kOhm (R100), mounted on the
heatsink, for the heatsink temperature acquisition and for devices with 6RA80..-4 disk-type
thyristors mounted in the supply air flow of the device (optional) for monitoring of the ambient
temperature.
Field module:
See block diagram in Section 6.3 of the Operating Instructions.
Part number: C98043-A7115 / A7116
Firing pulses for field supply by electrical isolation provided by pulse transformers
Shunt resistors for actual value sensing of the field supply:
Evaluation of actual field current value
3U1/3W1 power terminals, infeed, field supply and output 3C/3D
Line voltage measurement infeed, field supply isolated. The synchronization for the field
gating unit is also derived from this.
Note: Sensing directly at the field supply infeed means that any phase angle is possible.
Assignment to the phase angle of the infeed of the armature power unit or the electronics
infeed is immaterial.
Power unit 15 and 30 A devices:
Part number: C98043-A7111
Power unit wiring and surge absorbing capacitor circuit, power unit (thyristors, diodes)
armature and field
Gate pulse transformers for floating control of the thyristors of the field supply
18
- Quick Links:
- Cud (Control Unit DC)
- Faults/Alarms
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