Elmo Rietschle 2FC4...-1CB - Manual (Page 18)

5 Installation
610.00260.40.000 · 05.2014 18 / 74 © Gardner Denver Deutschland GmbH
Preventing electromagnetic interference
For control circuits shielded cables must be used, where possible. At the cable
end, the shield should be applied with due care without leaving the wires un-
shielded over longer distances.
The shielding of analogue setpoints should only be applied on one side of the
drive controller.
Basically, the control wires should always be routed as far away as possible from
power cables; separate cable ducts may have to be used, if required. If lines
cross, an angle of 90° should be adhered to, where possible.
Upstream circuit elements, such as contactors and brake coils or circuit elements
which are connected across the outputs of the drive controllers must be sup-
pressed in terms of interference. In AC contactors, RC (resistor-capacitor) circuits
can be used; suppressor diodes or varistors can be normally used for DC contac-
tors. This interference suppressor is attached directly to the contactor coil. Basi-
cally, the power supply to a mechanical brake should not be routed in the same
cable!
Power connections between the drive controller and motor should always be used
in shielded or reinforced design and the shield must be earthed at both ends over
a large area! The use of EMC cable glands is recommended. These are not in-
cluded in the delivery.
Installation of the drive controller integrated in the motor
Mechanical installation of sizes A - C
For mechanical installation of the drive controller, proceed as follows:
1. Open the standard motor connection box.
2. Disconnect the wires to the terminals. Remember or write down the connec-
tion sequence.
3. If necessary, remove the motor terminal block.
4. Remove the fastening screws securing the housing and remove the housing.
Be careful not to damage the gasket.
Assembly sequence: Junction box - adapter plate (BG A - C)
5.2.6
5.3
5.3.1