Installation MS20/MS30
Release
14
03/2023
7
Safety instructions
Certified usage
Use the device solely for the application cases described in the
Hirschmann product information, including this manual.
Operate the device solely according to the technical specifications.
Supply voltage
The devices are designed for operation with Safety Extra-low Voltage
(SELV). Connect only SELV circuits with voltage restrictions according to
IEC 60950-1 or ES1 according to IEC/EN 62368-1 to the supply voltage
connections and to the signal contacts.
The supply voltage is electrically isolated from the housing.
Use undamaged parts.
For power supply via DC voltage: All following prerequisites are
fulfilled:
There are fuses suitable for DC voltage in the positive conductors
of the supply lines, or the voltage sources are appropriately current-
limited. Regarding the properties of this fuse: See “General
technical data” on page 67.
The negative conductors of the voltage inputs are on ground
potential.
For power supply via AC voltage: All following prerequisites are
fulfilled:
There are fuses in the supply lines, or the voltage sources are
appropriately current-limited. Regarding the properties of this fuse:
See “General technical data” on page 67.
The power sources are electrically isolated from the ground
potential.
WARNING
UNCONTROLLED MACHINE ACTIONS
To avoid uncontrolled machine actions caused by data loss, configure all
the data transmission devices individually.
Before you start any machine which is controlled via data transmission, be
sure to complete the configuration of all data transmission devices.
Failure to follow these instructions can result in death, serious injury,
or equipment damage.
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