
7. Electrical installation
Festo P.BE-CMMP-AS-3A-HW-EN 0708NH
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such problems, we strongly recommend the following procedure for applications in which
long motor cables are required:
-
From a cable length of over 25 m, only cables with a capacitance between the motor
phase and screen of less than 200 pF/m, or, if possible less than 150 pF/m!
-
The directives can be maintained for cables up to 25 m in length. A suitable mains filter
must be installed when longer cables are used.
7.13.7
ESD protection
Caution
Unused D-SUB connector pins present a danger of damage to the
device or to other parts of the system as a result of ESD (electro-
static discharge).
In the design of the CMMP-AS servo positioning controller, great importance has been
placed on high resistance to interference. For this reason individual function blocks are
electrically isolated from each other. Signal transmission within the device is performed
via an optocoupler.
The following separate areas exist:
Separate areas:
-
Power stage with intermediate circuit and mains input
-
Control electronics with analogue signal processing
-
24 V supply and digital inputs and outputs
Содержание CMMP-AS-C2-3A
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