Efficient Networks Siemens Sinamics S120 - Manual (Page 233)

Function modules
7.6 Cooling system
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
233
7.6 Cooling system
7.6.1 "Cooling system" function module
Features
● Control and monitoring functions of a cooling unit
● Automatically activated when using water-cooled power units
● Evaluation of a leakage water sensor (p0266.4)
● Evaluation of a water flow sensor (p0266.5, p0260, p0263)
● Evaluation of a conductivity sensor (p0266.6, p0266.7, p0261, p0262)
● Monitoring the water intake temperature using internal temperature sensors
● Monitoring the flow rating using internal temperature sensors
Description
A cooling unit (RKA) is responsible for cooling the water and the (non) conductivity in the de-
ionized water cooling circuit of a water-cooled power unit. The cooling unit is controlled and
monitored from a PLC that is part of the cooling unit. The "cooling unit" function module
described here is used as an interface between the closed-loop control and the external
control (open-loop) (PLC) of the cooling unit.. The cooling unit is controlled via terminals (e.g.
Control Unit, TM31).