Installation; External Power Supply - Bosch CL200 User Manual

17

Installation

17.1

External Power Supply

1070 072 145-102 (01.07) GB
When designing and assembling a machine plant or system that will be sub-
ject to the deployment of electrical operating resources, such as control sy-
stems, etc., the regulations identified below – or similar or corresponding
guidelines of the country in which the machine plant will be operating – must
be observed without exception:
D DIN VDE 0100
D EN 60 204-1
D EN 50 178
DANGER
Risk of personal injury and equipment damage!
D In all circumstances, prevent hazard conditions within the system
that may give rise to personal injury or equipment damage!
D The regulations applying to the configuration of Emergency-
STOP devices in accordance with EN 60204-1 must be observed!
D An uncontrolled restart of machines upon return of mains power
(e.g., after an Emergency-STOP) must not be possible!
D Protection in the case direct and indirect contact must be ensured
by the prescribed measures (connection to PE conductor, insula-
tion, etc.)!
All components of the CL200 are powered by a 24 V power supply.
The power supply must feature protective separation in accordance with
EN 50178, section 5.2.18.1. Transformers featuring protective separation
must be constructed to EN 60742.
Provided the above preconditions are met, the 24 V power supply will be
considered functional low voltage with protective separation, as per
EN 50 178, section 5.2.8.1. Operation may take the form of Safety Extra Low
Voltage (SELV) without earthing of the reference conductor, or of Protective
Extra Low Voltage (PELV), with earthed reference conductor.
A 3-phase power supply unit w/ single full-bridge rectification is adequate.
The ripple content may not exceed 5 %.
All cabling of the 24 V power supply must be routed / installed as follows:
D Separate from cables carrying higher voltages, OR
D featuring special insulation, with the minimum insulation rating suitable
for the highest of all occurring voltages, refer to EN 60 204-1: 1997, sec-
tion 14.1.3.
.
All peripheral devices (e.g., digital sensors / actuators) connected to
the interfaces of the CL200 must also meet the criteria of protective se-
paration from electrical circuits.
Installation
17–1