Pilz PMCprotego D.72/000/0/0/2/208-480VAC - Manual (Page 37)

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]
4-3
4.2 Power element
4 Function Description
4.2 Power element 4200 Power element 4- ][Funktion_Leistungsteil
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
4.2.1 Mains voltage
Mains voltage 4- ][Funktion_Netzspannung_protego_D
The servo amplifier is suitable for connection to TT and TN networks.
The voltage range of the servo amplifier is 3 x 208 VAC - 3 x 480 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
μ
s) between the external conductors in accord-
ance with EN 61800: Max. 1000 V
 Voltage spikes (< 50
μ
s) between the external conductors and the
housing: Max. 2000 V
 Max. 42 kA symmetrical rated current
Direct connection to PMCprotego D
 208 – 240 V mains supplies without earthed star point (asymmetrically
earthed or unearthed mains supplies), see Fig. (2) – (6)
 208 – 480 V mains supplies with earthed star point, see Figure (1)
A C E
3
B
D