Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 109)

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
6-5
6.3 Notes on wiring
6 Wiring
Please note the following safety guidelines:
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6.3.1 Contact protection
Contact protection 6-
6.3.1.1 Leakage current
Leakage current 6- ][Verdr_Ableitstrom
The leakage current via the protective earth conductor is the sum of the
leakage currents from the units and cables.
The frequency of the leakage current is made up of a number of frequen-
cies. The residual current devices evaluate the 50 Hz current. It's not
possible to measure the leakage currents using a conventional multim-
eter because these too are standardised at 50 Hz current.
The ready-made cables from Pilz are low capacity. The leakage current
can be calculated approximately as follows (at 400 V mains voltage):
DANGER!
Risk of electrocution!
Never unplug the electrical connections on the servo amplifier
while voltage is applied.
Switch off the supply voltages!
Residual charges in the capacitors may still show hazardous val-
ues after the mains voltage is switched off:
- 5 min on units with 1.5 A to 12 A continuous current
- 8 min on units with 24 A continuous current
Measure the voltage on the intermediate circuit (+DC/-DC). Wait
until the voltage has dropped below 40 VDC.
Wait at least eight minutes before touching any parts that carry
voltage (e.g. contacts) or loosening the connections.
DANGER!
Risk of electrocution!
Never wire the electrical connections on the servo amplifier
while voltage is applied.
Switch off the mains voltages and 24 V supply!
Make sure that the control cabinet is made safe, e.g. through an
access lock or warning signs. Do not switch on the voltages until
the system is commissioned!