Residual Current Devices Fi - Pilz PMCtendo DD5 Operating Manual

Wiring
The following measures can be taken to minimise leakage currents:
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Reduce the length of the motor cable
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Use lower capacity cables (see section entitled "Connection cables")
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Remove external EMC filters (interference suppression measures are integrated within
the servo amplifier)
6.3.1.2

Residual current devices FI

In accordance with DIN IEC 60364-4-41 - Electrical installations of buildings - and
EN 60204 - 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
10 - 30 mA
50 - 300 mA
Selective FI residual current devices will stop the protective device being triggered inadvert-
ently.
Operating Manual PMCtendo DD5
1002236-EN-04
INFORMATION
The leakage current to PE is more than 3.5 mA. In accordance with
EN 61800-5-1, the PE connection must either be duplicated or a connection
cable with a cross section > 10 mm² must be used. Use the PE terminal and
PE bolt.
Protection
Protection against "indirect contact" (personal fire protection) for sta-
tionary and mobile electrical work equipment, as well as "direct con-
tact".
Protection against "indirect contact" (personal fire protection) for sta-
tionary electrical work equipment
INFORMATION
Recommendation: For protection against direct contact (with motor cable
runs < 5 m), we recommend that each servo amplifier is protected individu-
ally using a 30 mA universal current sensitive residual current device.
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