Safety Equipment; Personnel Requirements - Siemens G120P Technical Manual

3.2 Safety equipment

3.3 Personnel requirements

Siemens
Building Technologies
WARNING
Danger to life due to safety equipment malfunctions!
If safety equipment fails to function properly or is deactivated or disabled, the
device can pose a risk of extremely serious injury or death.
Failure to provide a proper protective conductor connection can affect the ability
of protective equipment to function correctly.
● Ground the device in compliance with the applicable regulations.
● The variable speed drive can cause a DC current in the PE conductor. At
locations at which a residual-current device (RCD) or a residual current
monitor (RCM) is installed in order to protect against direct or indirect contact,
the RCDs or RCMs on the supply side of the variable speed drive must all be
type B super-resistant devices.
The following safety equipment is installed as standard:
● Overcurrent protection device
The following safety devices can be optionally provided (depending on the
application) by the machine manufacturer/operator:
● Residual current devices
● Residual current monitor
● Maintenance switch which either de-energizes the variable speed drive or
interrupts the connection between the variable speed drive and the motor
(motor cable).
All personnel must be persons who can reasonably be expected to work reliably
and conscientiously. Persons whose ability to react is impaired, for example, by
drugs, alcohol or medication, are prohibited from working with the device.
The regulations pertaining to age and occupation applicable at the site of
installation must be observed in the selection of personnel.
WARNING
The device may only be installed, commissioned, and maintained by trained
personnel.
Many dangers, some potentially fatal, are posed by permitting unqualified
personnel to work on the device. They may also result in damage to the device
and to the plant.
 Qualified personnel are specialists who possess the skills required to install,
mount, commission, operate, and repair the device. These people must have
the following qualifications:
● They must have received training and be authorized to switch the variable
speed drive on and off, to ground the device in accordance with safety
standards and to tag the circuits. They are generally people with expertise in
the area of electrical installation or people who work under the supervision of
experts, such as qualified electricians.
● They have to be familiar with all the safety information, installation and
operating instructions contained in this Guide and be trained to perform first
aid.
Safety
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Safety equipment
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