Continental Hydraulics Installation Manual
Page 6 of 20
CEM-BPS-B
CHI 1020813 Jan 2016
Dimensions:
Module Mounting Location:
This module is to be mounted in a cabinet for protection from the local environment.
Ensure there is adequate free space around the module to allow for cooling air flow.
This module is designed to snap onto an industry standard 35mm DIN rail.
Do not mount near other modules that emit high power electrical interference, such as motor
controllers and high power contactors.
Power Supply:
This module is designed to operate on DC power from a regulated power supply ranging from 12
to 30 volts. Match valve solenoid voltage rating to power supply, typically 12 or 24 volts.
A 1 amp medium action fuse is recommended in the “+” power supply line.
Wiring:
The module should be installed and wired in accordance with the documentation bearing in mind
EMC principles. If other consumers are operated with the same power supply, a star-shaped
ground wiring scheme is recommended. The following points must be observed when wiring:
The signal cables must be laid separately from power cables.
Analogue signal cables
must be shielded
.
All other cables must be shielded if there are powerful interference sources (frequency
converters, power contactors) and cable lengths > 3 m. Inexpensive SMD ferrites can be
used with high-frequency radiation.
The shielding should be connected to PE (PE terminal) as close to the module as
possible. The local requirements for screening must be taken into account in all cases.
The shielding should be connected at both ends. Equipotential bonding must be provided
where there are differences between the connected electrical components.
If having longer lengths of cable (> 10 m), the diameters and screening measures should
be checked by specialists (e. g. for possible interference, noise sources and voltage
drop). Special care is required if using cables of over 40 m in length, and if necessary the
manufacturer should be consulted.
Wire size is chosen to provide an acceptable voltage drop between the module and the valve
solenoid.
