Thermocouple - Siemens S120 Instructions Manual

X121.7 has to be used as a +24V command to reduce the power used in condition of UPS feeding (for
example in emergency conditions activated by the fire fighters). See paragraph 10.4.4.
X121.7 isn't the command for emergency downward travel in the event of a power failure! It cannot be
used to open the valve in case of lack of power.
The outputs (DO) are signals +24V that guarantee maximum 0,5A and can't be able to directly feed the coils!
7.5

THERMOCOUPLE

For a proper operation of the inverter and in order to ensure the temperature compensation, must be
connected a thermocouple PT100 and its transmitter amplifier to the terminals X131.7 and X131.8 of the CU.
OmarLift deliver as standard a thermocouple and an amplifier from SENECA company.
Amplifier technical data:
Siemens S120_EN_rev06-08062017.docx 7-4