SIGMATEK DIAS-DRIVE 210-23, Руководство пользователя, Страница: 29 / 91

DIAS-DRIVE 210-23
30.03.2021 Page 29
2.2.7 Voltage Supply Options
The main voltage supply for the DIAS-Drive requires a fixed connection. If the
servo amplifier is mounted with a connector terminal to a moving machine
part, the ground connection must have a cross section of at least 10 mm² (8
AWG) to avoid the high residual current (>3.5 mA).
When using a ground fault interrupter in the circuit, a type B FI-switch must
be used. If a type "A" FI-switch is used, A DC ground fault could cause a mal-
function.
Power supply The servo amplifier can be connected directly to
(non grounded) a supply voltage with a the grounded terminal without galvanic
isolation.
Non grounded If the servo amplifier is operated in a non-grounded system (IT
power supply network), the danger of over voltage or damage exists.
The following measures can be taken to provide protection
against over voltage :
•
Use of a galvanically isolating transformer
with an grounded star point on the sec-
ondary side. This offers the highest pro-
tection.
•
Over voltage protection installed in the
voltage supply of the control cabinet.
The servo amplifier is tested according to EN 61800 as follows:
•
Periodic over voltage between phase
conductors (L1, L2, L3) and the amplifier
housing cannot exceed 1000V (ampli-
tude).
•
According to EN61800, the peak voltages
(<50µs) between the phase conductors
cannot exceed 1000V. Peak voltages
(<50µs) between the phase conductors
and the housing cannot exceed 2000V.