Wiring
Operating Manual PMCprotego D.48, PMCprotego D.72
1001735-EN-04
102
INFORMATION
The leakage current to PE is more than 3.5mA. In accordance with
EN61800-5-1, the PE connection must either be duplicated or a connection
cable with a cross section >10mm² must be used. Use the PE terminal and
PE bolt.
The following measures can be taken to minimise leakage currents:
} Reduce the length of the motor cable
} Use lower capacity cables (see section entitled “Connection cables”)
} Remove external EMC filters (interference suppression measures are integrated within
the servo amplifier)
6.3.1.2 Residual current devices FI
In accordance with DINIEC60364-4-41 - Electrical installations of buildings - and
EN60204 - Electrical equipment of machines - it is possible to use residual current devices
(hereafter called FI), if the necessary provisions are met.
The servo amplifiers constitute a 3-phase system with a B6 bridge. Universal current sensit-
ive FIs must be used to enable any potential DC fault current to be detected.
For a general rule of thumb for determining leakage current, please see the section entitled
“Leakage current”.
Fault current measurement on the FI
Fault current Protection
10 - 30 mA Protection against “indirect contact” (personal fire protection) for sta-
tionary and mobile electrical work equipment, as well as “direct con-
tact”.
50 - 300 mA Protection against “indirect contact” (personal fire protection) for sta-
tionary electrical work equipment
INFORMATION
Recommendation: For protection against direct contact (with motor cable
runs <5m), we recommend that each servo amplifier is protected individu-
ally using a 30mA universal current sensitive residual current device.
Selective FI residual current devices will stop the protective device being triggered inadvert-
ently.
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General