SIGMATEK MDD 111-1, Manual

Page: 35 / 84

MDP 102-1
29.08.2019 Page 35
3.3.7 MDP 102-1 Mains Supply Options
The servo drive system MDD 100 has a high leakage current higher than
3.5 mA. Therefore particular attention has to be taken on the grounding of the
servo drive system:
a) Stationary machine mains supply connection:
–
Parallel connection of the protective conductor
on X2/Pin4 and at the module carrier with the same
gage wire size, or
–
Ground the MDD 100 with a minimum wire size of
10 mm² (AWG 8) at the module carrier, or
–
Automatically switch-off of the mains supply
at cable break of the protective conductor
b) Variable machine mains supply connection:
Mains connection with industry connector according to EN 60309
and a minimum wire cross section of the protective conductor of 2.5 mm²
(AWG 13) as part of a multi-conductor supply cable. Use an adequate pull
relief.
If a leakage current sensor is used in the mains supply of the servo drive sys-
tem, a leakage current sensor RCD type B must be used.
If a RCD type A or AC is used, there is a risk, that the DC ground current of
the servo drive will inhibit the leakage current sensor.
The power supply module MDP 102-1 is a 230 V
– input module
Grounded mains
The power supply module can be connected directly to mains
with grounded star point or grounded phase conductor in the de-
fined voltage range without galvanic isolation.
Single-phase mains The power supply module can also be supplied by a 230 V sin-
gle-phase mains.
Note: The output power of the servo drive system with single
phase supply is limited by the capacitance of the DC-link capaci-
tors. Please contact the support department for further infor-
mations.