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VLT® PTC Thermistor Card MCB 112
Operating Guide
2 Safety
2.1 Safety Symbols
The following symbols are used in this manual:
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
Indicates a property damage message.
2.2 Qualified Personnel
The products must only be assembled, installed, programmed, commissioned, maintained, and decommissioned by persons with
proven skills. Persons with proven skills:
•
Are qualified electrical engineers, or persons who have received training from qualified electrical engineers and are suitably
experienced to operatre devices, systems, plant, and machinery in accordance with the general standards and guidelines for
safety technology.
•
Are familiar with the basic regulations concerning health and safety/accident prevention.
•
Have read and understood the safety guidelines given in this manual and also the instructions given in the operating guide of
the drive.
•
Have good knowledge of the generic and specialist standards applicable to the specific application.
2.3 Responsibilities of Users of Safety-related Power Drive Systems PDS (SR)
Users of safety-related Power Drive Systems (PDS (SR)) are responsible for:
•
Carry out a hazard and risk analysis of the application according to EN ISO 12100.
•
Ensure that the qualified personnel have experience with working in ATEX areas according to Directive 99/92/EC (also known as
the ATEX Workplace Directive).
•
Identify safety functions required, and allocate SIL or PLr to each of the functions.
•
Identify other subsystems and validate the signals and commands from those subsystems.
•
Design appropriate safety-related control systems (hardware, software, parameterization, and more).
2.4 Protective Measures
Qualified and skilled personnel must be available for installing and commissioning the safety engineering systems.
Procedure
1.
Install the drive in an IP54 cabinet as per IEC 60529, or in an equivalent environment. In special applications, a higher IP
rating may be necessary.
2.
Ensure short-circuit protection of the cable between terminal 37 and the external safety device according to ISO 13849-2
table D.4.
3.
Optional step: Install additional measures (for example, a safety holding brake) if external forces influence the motor axis
(for example, suspended loads).
Danfoss A/S © 2022.08
D A N G E R
W A R N I N G
C A U T I O N
N O T I C E
AQ267038105120en-000101 / 130R0104 | 11
Safety
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Is PTC Thermistor card required in PESO certification also?