Power Element; Mains Voltage - Pilz PMCtendo DD5 Operating Manual

4 Function description
4.2

Power element

4- ][Funktion_Leistungsteil Power element 4200 Power element 4.2
4.2.1

Mains voltage

4- ][Funktion_Netzspannung_DD5 Mains voltage
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
The power element of the servo amplifier converts the fixed voltage and
frequency of the mains into a variable voltage and frequency for driving
the motor This means that the rotational speed and torque are infinitely
variable. The power element consists of:
Filter A

Rectifier B

Charging circuit with intermediate circuit C

Brake chopper D

Inverted rectifier E

Fig. 4-2: Power element
The servo amplifier is suitable for connection to TT and TN networks.
Depending on the device type, the voltage range of the servo amplifier is
3 x 110 VAC – 3 x 230 VAC or

3 x 208 VAC - 3 x 4 80 VAC.

Please note the maximum permitted voltages between the external con-
ductors (L1, L2, L3) and the servo amplifier housing:
Periodic overvoltages between the external conductors and the hous-

ing: Max. 1000 V (amplitude)
Voltage spikes (< 50 μs) between the external conductors in accord-

ance with EN 61800: Max. 1000 V
Voltage spikes (< 50 μs) between the external conductors and the

housing: Max. 2000 V
Direct connection to PMCtendo DD5
110 – 230 V mains supplies without earthed star point (asymmetrically

earthed or unearthed mains supplies), see Fig. (1) – (5)
400 – 480 V mains supplies with earthed star point, see Figure (6)

4-3