III
PKE-COM-RTU Modbus RTU communication interface for PKE12/32/65
03/20 MN034005EN
Before starting with the installation
Danger!
Dangerous electrical voltage!
•
Disconnect the power supply of the device.
•
Ensure that devices cannot be accidentally retriggered.
•
Verify isolation from the supply.
•
Ground and short-circuit.
•
Cover
or enclose neighboring units that are live.
•
Follow the installation instructions
(IL) for the device concerned.
•
Only suitably qualified personnel in accordance with
EN 50110-1/-2 (VDE 0105 part 100) may work on
this device/system.
•
Before installation and before touching the device ensure that
you are free of electrostatic charge.
•
The functional earth (FE) must be connected to the protective
earth (PE) or to the potential equalizing. The system installer
is responsible for implementing this connection.
•
Connecting cables and signal lines should be installed so
that inductive or capacitive interference does not impair the
automation functions.
•
Install automation devices and related operating elements in
such a way that they are well protected against unintentional
operation.
•
Suitable safety hardware and software measures should
be implemented for the I/O interface so that a line or wire
breakage on the signal side does not result in undefined
states in the automation devices.
•
Ensure a reliable electrical isolation of the low voltage for
the 24 V supply. Only use power supply units complying with
IEC 60364‑4‑41 or HD 384.4.41 S2 (VDE 0100 Part 410).
•
Deviations of the mains voltage from the nominal value must
not exceed the tolerance limits given in the specifications,
otherwise this may result in malfunction and hazardous
states.
•
Emergency‑Stop devices complying with IEC/EN 60204‑1 must
be effective in all operating modes of the automation devices.
Unlatching the emergency switching off devices must not
cause restart.
•
Built-in devices for enclosures or cabinets must only be
run and operated in an installed state; desktop devices and
portable devices only when the housing is closed.
•
Measures should be taken to ensure the proper restarting
of programs interrupted after a voltage dip or outage. This
should not result in dangerous operating states even for a
short time. If necessary, emergency switching off devices
should be implemented.
•
Wherever faults in the automation system may cause
damage to persons or property, external measures must be
implemented to ensure a safe operating state in the event of
a fault or malfunction (for example, by means of separate limit
switches, mechanical interlocks, etc.).
•
The electrical installation must be carried out in accordance
with the relevant regulations (e.g. with regard to cable cross
sections, fuses, PE).
•
All transport, installation, commissioning and maintenance
work must only be carried out by trained personnel (observe
IEC 60364, HD 384 or DIN VDE 0100 and national accident
prevention regulations).
•
Keep all covers and doors closed during operation.
