Festo Электромотор MTR-DCI - Manual (Page 54)

3. Installation
3-6
Festo P.BE-MTR-DCI-PB-EN en 1209a
3.2 Earthing
Note
• Connect the earth terminal of the MTR-DCI with low im-
pedance (short cable with large cross section area) to
the earth potential.
This prevents interference from electromagnetic sources
and ensures electromagnetic compatibility in accordance
with EMC directives.
In order to connect the MTR-DCI to the earth potential, use
only the following earth terminal:
– Earthing strap on free end of the power supply cable; see
assembly instructions for cable KPWR-MC-1-SUB-9HC-...
(see chapter 3.3.2)
Caution
Earth or ground loops can make EMC safety measures
ineffective and allow high compensating currents to dam-
age the motor unit.
• Connect only the cable screening of the power supply
cable to the functional earth FE.
• Do not connect the terminal GND with the housing,
screening, or functional earth FE!
• Never connect one of the power supply connections (see
chapter 3.2, A1, A2) with FE or with the housing.
This will avoid damaging the device and the impairing EMC
protection functions.