Protection Against Magnetic And Electromagnetic Fields During Operation And Mounting - Bosch Rexroth IndraControl VCP 02.2 Project Planning Manual

R911310375 / 02 | Rexroth IndraControl VCP 02
Safety Instructions for Electric Drives and Controls
3.8 Protection Against Magnetic and Electromagnetic Fields During
Operation and Mounting
Electric Drives and Controls | Bosch Rexroth AG
• Fences and coverings must be strong enough to resist maximum
possible momentum, especially if there is a possibility of loose parts
flying off.
• Mount the emergency stop switch in the immediate reach of the op-
erator. Verify that the emergency stop works before startup. Don't
operate the machine if the emergency stop is not working.
• Isolate the drive power connection by means of an emergency stop
circuit or use a starting lockout to prevent unintentional start.
• Make sure that the drives are brought to a safe standstill before ac-
cessing or entering the danger zone. Safe standstill can be achieved
by switching off the power supply contactor or by safe mechanical
locking of moving parts.
• Secure vertical axes against falling or dropping after switching off the
motor power by, for example:
– mechanically securing the vertical axes
– adding an external braking/ arrester/ clamping mechanism
– ensuring sufficient equilibration of the vertical axes
The standard equipment motor brake or an external brake controlled di-
rectly by the drive controller are not sufficient to guarantee personal
safety!
• Disconnect electrical power to the equipment using a master switch
and secure the switch against reconnection for:
– maintenance and repair work
– cleaning of equipment
– long periods of discontinued equipment use
• Prevent the operation of high-frequency, remote control and radio
equipment near electronics circuits and supply leads. If the use of
such equipment cannot be avoided, verify the system and the instal-
lation for possible malfunctions in all possible positions of normal
use before initial startup. If necessary, perform a special electromag-
netic compatibility (EMC) test on the installation.
Magnetic and electromagnetic fields generated near current-carrying
conductors and permanent magnets in motors represent a serious
health hazard to persons with heart pacemakers, metal implants and
hearing aids.
WARNING
Health hazard for persons with heart pacemakers, metal implants and
hearing aids in proximity to electrical equipment!
3-7