Festo CMSX-C-U-F1 Series Manual page 21

CMSX-...-C-U-F1-...
Pin Designation
5 +24 V DC
6 0 V DC
7 I-
8 I+
9 –
10 ALARM
11 D-OUT1
12 D-OUT2
13 + 24 V DC
14 0 V DC
15 D-IN+
16 D-IN-
1) Permits split circuits if separate power supply units are used
Tab. 4 Pin allocation
Operating voltage supplyand earthing
Correct earthing is important for trouble-free operation of the device. The positioner CMSX has an earth
terminal on the left-hand side (è Fig. 16, 2 ).
For earthing, you must produce a low-impedance connection between the device's earth terminal and
the earth potential. A low-impedance connection can be achieved by using a low-impedance cable that
is as short as possible and contacting over a large surface area.
• Connect, in a conforming manner, an appropriate earth connector to the earth terminal on the hous­
ing side of the CMSX.
Fig. 17 Operating voltage supply and earthing – example
Festo – CMSX-...-C-U-F1-... – 1506a English
Description
Operating voltage supply; 24 V DC
Operating voltage supply; 0 V DC
Current output signal -
Current output signal +
connected to the earth terminal at the plant
Alarm digital output
Digital output Out 1
Digital output Out 2
Load voltage supply for outputs; 24 V DC
Load voltage supply for outputs; 0 V DC
Digital input +
Digital input -
Supply to electronics and
valves
Output actual value
4 ... 20 mA
–
Alarm output
Status output
Supply to digital outputs
1)
Control input
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