LED display
The meaning of the LED display is identical for the 3 digital outputs.
LED Meaning
LED
left
Digital output switched
LED
right
ON: PNP
OFF: NPN
Tab. 1 Meaning of the LEDs
5.2 Function
The CMSX digital electropneumatic positioner enables simple and efficient position control based on
the PID control algorithm. Positions are specified via an analogue setpoint signal. The current position
of the actuator is detected as follows:
– CMSX-P-S-... : through an integrated potentiometer
– CMSX-P-SE-... : through an external path/angle sensor
The PID controller compares the measurement value with the specified analogue setpoint value
and controls the solenoid valves.
5.3 Product variants and type code
Characteristic Value Description
Type CMSX Positioner for process automation
Product version -P mainly polymer
-S Positioner, displacement/angular detection integratedDesign
-SE Positioner, displacement/angular detection external
Display type -C LCD, backlit
Setpoint value -U configurable (0…10V, 0…20mA, 4…20mA)
Position feedback -F1 4…20mA
-D double-actingFunction
-S single-acting
-50 50l/minStandard nominal flow rate
-130 130l/min
-A open or close in case of system failureSafety function
-C block in case of system failure
Tab. 2 Overview of variants
Product overview
9Festo — CMSX-...-C-U-F1-... — 2019-09d