Qualified Personnel; Due Diligence; Intended Use - Danfoss VLT Series Operating Instructions Manual

Safety
•
In addition to the L1, L2 and L3 supply voltage
inputs on the power supply module, the servo
system has other supply voltage inputs, including
external DC 24 V. Before commencing repair
work, check that all supply voltage inputs have
been switched off and that the necessary
discharge time for the intermediate circuit
capacitors has elapsed.
•
The supply of power to the servo system must be
switched off for repair work. Before disconnecting
or connecting the hybrid cable or disconnecting
cables from the connection box and/or the power
supply module, ensure that the mains supply is
disconnected and the necessary discharge time
has elapsed.
WARNING
DISCHARGE TIME
The servomotors, the connection box and the power
supply module contain DC link capacitors, that remain
charged for some time after the mains supply is switched
off at the power supply module.
To avoid electrical shock, fully disconnect the power
supply module from the mains before carrying out any
maintenance on the ISD servo system or its components.
Wait for at least the time listed below before carrying out
maintenance work:
Number Minimum waiting time (discharge time)
1-60 servomotors 10 minutes
Note: High voltage may still be present even if the LED on the
ISD connection box is not lit!
Table 3.1 Discharge Time
CAUTION
Never connect or disconnect the hybrid cable to or from
the servomotor when voltage is present. Doing so will
damage the electronic circuitry. Observe the discharge
time for the DC link capacitors.

3.4 Qualified Personnel

Installation, commissioning and maintenance of the
ISD 410 servo system may only be carried out by qualified
personnel.
For the purposes of this document and the safety
instructions in this document, qualified staff are trained
staff who are authorised to fit, install, commission, earth
and label equipment, systems and circuits in accordance
with the standards for safety technology and who are
familiar with the safety concepts of automation
engineering.
®
VLT ISD Power Supply Module Operating Instructions
Additionally, the personnel must be familiar with all the
instructions and safety measures described in these
operating instructions.
They must have suitable safety equipment and be trained
in first aid.

3.5 Due Diligence

The operator and/or fabricator must ensure that:

3.6 Intended Use

The components of the ISD servo system are intended to
be installed in machines used in commercial and industrial
environments.
To ensure that the product is used as intended, the
following conditions must be fulfilled before use:
®
MG75H102 - VLT is a registered Danfoss trademark
•
the servo system and its components are used
only as intended
•
the components are operated only in a perfect
operational condition
•
the operating instructions are always available
near the servo system in complete and readable
form
•
the servo system and its components are fitted,
installed, commissioned and maintained only by
adequately qualified and authorised personnel
•
these personnel are regularly instructed on all
relevant matters of occupational safety and
environmental protection, as well as the contents
of the operating instructions and in particular the
instructions it contains
•
the product markings and identification markings
applied to the components, as well as safety and
warning instructions, are not removed and are
always kept in a legible condition
•
the national and international regulations
regarding the control of machinery and
equipment, that are applicable at the place of use
of the servo system, are complied with
•
the users always have all current information
relevant to their interests about the servo system
and its use and operation
•
Everyone who uses Danfoss products in any
manner must read and understand the
corresponding safety regulations and the
description of the intended use
•
Hardware must be left in its original state, which
means that no structural changes may be made
to the hardware
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