Wiring
Operating Manual PMCprotego D.48, PMCprotego D.72
1001735-EN-04
108
Please note the following if additional filter measures are required:
} Earth the filter to avoid hazardous voltages
} Leakage currents are high frequency disturbances, so earth the filter at low impedance
over a wide area.
WARNING!
In a residential environment this product may cause high-frequency noise,
so that suppression measures may be required.
6.5.4 Chokes
If motor cables are >25m, a choke must be used on the servo amplifier's output.
The choke is used to
} Reduce the level of interference on the motor cable
} Deal with EMC problems retrospectively
} Protect the semiconductor on the inverted rectifier in the case of an earth fault or short
circuit
} Protect the motor from high voltage rise rates
Additional earthing measures are unnecessary because, unlike filters, chokes do not have
to divert disturbances to earth.
INFORMATION
A 3L line choke with u
k
= 2% must be used in the event of a mains voltage
imbalance of > 3%. Install the line choke on the mounting plate in a way that
is EMC-compliant.
6.6 Power element
6.6.1 Mains voltage
Under “Connection cables”, please note the requirements for the:
} Cable cross sections
} Insulation material
CAUTION!
Risk of overvoltage
Overvoltage can destroy the device and lead to minor injuries.
Select the correct mains voltage and the correct device type.
When mains voltage is below 300 V AC please note:
} Set BONBTB = 1 and VBUSBAL = 1.
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