Safety instructions
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Doku-Version 2.05 - Firmware 2.10 - 15. September 2017
1.3 Intended use
This control system may only be used for the purpose for which it is intended:
The VS 300 has been designed for use as pack controller in commercial and industrial refrigeration systems
with the intended functional scope as described in these operating instructions, and it is to be used under the
environmental conditions in these instructions.
Follow the safety instructions, as well as the instructions on installation, commissioning, operation and mainte
nance. Only THEN should you start commissioning or operating the machine/system.
The safety and function of the machine/unit is only assured in the use for which it has been intended.
Never use the machine/unit, its components, assemblies or parts of it for a different purpose.
The installation may be only operated for the first time when the entire unit has been shown to conform
to the EC Directives.
1.4 BGV A3 - Five safety rules
The following rules must be strictly observed:
1. Disconnect electric power: Disconnect power at all connections of the entire installation on which
work is to be carried out.
Warning - hazardous electrical voltage!
Beware of possible external power supplies! BEFORE and AFTER connection it must be checked
that the controller is off load! All device connections/plugs are only to be plugged in, unplugged and/
or wired when off load.
2. Secure against reconnection of power: Tag the disconnected equipment with the following information:
‐ What has been disconnected from power
‐ Why it has been disconnected
‐ Name of person who disconnected power
‐ Use a suitable lock-out (e.g. padlock) to prevent reconnection of power.
3. Make sure that power is off (authorized and duly trained personnel only):
‐ Check with voltmeter immediately before use.
‐ Check that power is off on all connections at the disconnection point.
‐ Check that power is off on all connections at the place of work.
4. Ground and short circuit: Ground and then short circuit all electrical parts at the place of work.
5. Cover or bar off adjacent power-carrying parts: Any equipment carrying power adjacent to the work area
must be covered by suitable means (e.g. insulating cloths or panels).
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