Connection
5.1 Safety notes for electrical connections
Naturally cooled 1FW6 built-in torque motors
Operating Instructions, 07/2017, 6SN1197-0AF02-0BP2
69
WARNING
Electric shock caused by high leakage currents
When touching conductive parts of the machine, high leakage currents can result in an
electric shock.
•
For high leakage currents, observe the increased requirements placed on the protective
conductor. The requirements are laid down in standards DIN EN 61800-5-1 and
DIN EN 60204-1.
•
For high leakage currents, attach warning symbols to Power Drive System .
WARNING
Risk of electric shock as a result of residual voltages
There is a risk of electric shock if hazardous residual voltages are present at the motor
connections. Even after switching off the power supply, active motor parts can have a
charge exceeding 60
μ
C. In addition, even after withdrawing the connector 1 s after
switching off the voltage, more than 60 V can be present at the free cable ends.
•
Wait for the discharge time to elapse.
NOTICE
Damage to cables
Cables subject to high acceleration rates can wear more quickly. The cables permanently
connected to the motor cannot be replaced if they are damaged.
•
Observe the permissible acceleration rates for the cables.
•
Do not use a drag chain for the cables permanently attached to the motor.
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