Electric Installation; External Power Supply Unit - Bosch Rexroth IndraControl L40 Project Planning Manual

IndraControl L40
8.3

Electric Installation

External Power Supply Unit

DOK-CONTRL-IC*L40*****-PR02-EN-P
IAS COMPONENTS www.ias-components.com info@ias-components.com
When setting up a system in which electrical equipment, such as control
units, will be used, always comply with the regulations specified in the
following standards:
• DIN VDE 0100
• DIN EN 60 204–1
• DIN EN 50 178
Danger of personal injury and material damage!
⇒ Any dangerous states of the system which might
cause personal injury or material damage must be
prevented!
DANGER
⇒ The
EMERGENCY STOP equipment in accordance with
EN 60204-1 must be adhered to!
⇒ Any automatic restart of machines after power
return, e.g. after an EMERGENCY STOP, must be
excluded!
⇒ Protection for direct and indirect contact must be
ensured by the measures prescribed (connection to
protective conductor, isolation, etc.).
All components of the IndraControl L40 are supplied with 24-V supply
voltages.
The power supply unit must be safety-separated in accordance with DIN
EN 50178, Section 5.2.18.1. Transformers must be designed with safety
separation in accordance with DIN EN 60742.
If these requirements are complied with, the 24-V supply voltage is rated
as safety-separated extra-low voltage in accordance with DIN EN 50178,
5.2.8.1. This voltage is designed either as safety extra-low voltage (SELV)
without ground connection of the reference conductor or as protective
extra-low voltage (PELV) with ground connection of the reference
conductor.
A three-phase power supply unit with easy full-bridge rectification is
appropriate. The ripple voltage content must not exceed 5%.
All 24-V voltage supply lines must
• be laid such that they are isolated from lines carrying higher voltages,
or
• be insulated to a particularly high degree, with the insulation having to
be designed for the highest voltage present (see EN 60204-1: 1997,
Section 14.1.3).
Any peripherals, such as digital sensors/actuators, which are connected
to the interfaces of the IndraControl L40, must also comply with the
criteria of safety-separated circuit.
Installation and Maintenance
rules and regulations
8-7
for setting up