Caution Statements - AuCom MVS User Manual

Section 1 Caution Statements
This symbol is used throughout this manual to draw attention to topics of special importance to the
installation and operation of MVS Series soft starters.
Caution Statements cannot cover every potential cause of equipment damage but can highlight common causes of
damage. It is the installer's responsibility to read and understand all instructions in this manual prior to installing, operating
or maintaining the soft starter, to follow good electrical practice including applying appropriate personal protective
equipment and to seek advice before operating this equipment in a manner other than as described in this manual.

Read and understand the entire manual before installing operating, or maintaining the starter. Follow all
applicable local and national codes.

Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices.

Use only electrically insulated tools and clothing and insulated protective gear when working around electrical
equipment.

Disconnect all power and ensure that the starter is de-energised before servicing the starter.

Do not rely on visual indications such as switch position or fuse removal for determining a de-energised
condition. Always assume that a terminal is energised until it is checked with a properly rated meter to ensure
that a terminal is de-energised and grounded.

Isolate the soft starter completely from the power supply before attempting any work on the starter or motor.

Always use a properly rated voltage sensing device to confirm power is off.

Before servicing the starter, ensure that all static charge has been discharged by grounding it with an appropriate
grounding device.

Metal swarf in the cabinet can cause equipment failure.

Do not apply voltage to the control input terminals. These are active 24 VDC inputs and must be controlled
with potential free contacts.

Contacts or switches operating the control inputs must be suitable for low voltage, low current switching (ie gold
flash or similar).

Cables to the control inputs must be segregated from mains voltage and motor cabling.

Some electronic contactor coils are not suitable for direct switching with PCB mount relays. Consult the
contactor manufacturer/supplier to confirm suitability.
The examples and diagrams in this manual are included solely for illustrative purposes. The information contained in this
manual is subject to change at any time and without prior notice. In no event will responsibility or liability be accepted for
direct, indirect or consequential damages resulting from the use or application of this equipment.
WARNING - ELECTRICAL SHOCK HAZARD
MVS soft starters contain dangerous voltages when connected to mains voltage. Only a qualified electrician
should carry out the electrical installation. Improper installation of the motor or the soft starter may cause
equipment failure, serious injury or death. Follow this manual and local electrical safety codes.
SHORT CIRCUIT
MVS soft starters are not short circuit proof. After severe overload or short circuit, the operation of the soft
starter should be fully tested by an authorised service agent.
GROUNDING AND BRANCH CIRCUIT PROTECTION
It is the responsibility of the user or person installing the soft starter to provide proper grounding and branch
circuit protection according to local electrical safety codes.
ARC FLASH HAZARD
Soft starters have a potential risk of arc flash. When insulation or isolation between electrified conductors is
breached or can no longer withstand the applied voltage, a short circuit occurs through the air. This may cause
a phase-to-ground and/or a phase-to-phase fault.
AuCom soft starters have been designed to mitigate an arc fault, however it is the responsibility of the site
engineer to ensure that personnel are protected from serious injury that may result from an arc fault.
Although unlikely, arc fault can be caused by:

Contamination in the insulation caused by deterioration over time
710-13019-00A MVS User Manual

CAUTION STATEMENTS

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