Speed Sensing For Four Motors (Only Starting Converters) (Option A54); Dry Transformer Monitoring (Option A72); Oil Transformer Monitoring (Option A73); Extended Dry Transformer Monitoring (Option A74) - Siemens SINAMICS MV 9LD4110-7EX70-1AA0 Operating Instructions Manual

3.5.13

Speed sensing for four motors (only starting converters) (option A54)

Four SMC30s are used to monitor four motors. This option includes the HUB 20.
The SMC30 (Sensor Module Cabinet-Mounted 30) evaluates motor encoder signals. The sensor
module transfers the speed and actual position value to the Control Unit via the internal DRIVE-
CLiQ communication interface.
Note
If an encoder fails, the mode can be switched over to "encoderless".
You can find information on the interfaces and LEDs in the "Supplementary component
descriptions (https://www.lda-portal.siemens.com/siemlda/en/109768128)" document.
3.5.14

Dry transformer monitoring (option A72)

Alarm and fault messages to the dry-type transformer are evaluated via the additional TM15
module.
3.5.15

Oil transformer monitoring (option A73)

Alarm and fault messages to the oil-filled transformer are evaluated via the additional TM15
module.
These are solely binary signals. Up to eight signals are output per step-up transformer or step-
down transformer.
3.5.16

Extended dry transformer monitoring (option A74)

Binary and analog signals are monitored via the internal SIMATIC S7. The S7 transfers messages
to the Control Unit as message vectors and assigns them to the texts. This option contains the
following modules:
• Two modules each with 8 analog inputs
• One module with 32 digital outputs
• One module with 32 digital inputs, which is wired via Phoenix spring-cage terminals (cross-
section 1.5 mm²)
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
Description
3.5 Options
43