Lenze i700 Manual - Manual (Page 138)

Accessories (overview)
Mains chokes
11
l
138 EDS700ACBA EN 4.0
11.2 Mains chokes
Mains chokes:
Inductances for damping conducted harmonic interferences which may arise from
reloading the DC bus and the switching frequency of the inverter.
Assignment of mains chokes
Mains choke Power supply module
EZAELN3025B122 E70ACPSx0304x
EZAELN3050B591 E70ACPSx0604x
Technical data
I
N
L P
V
[A] [mH] [W]
EZAELN3025B122 25 1.18 72
EZAELN3050B591 50 0.59 144
L3
N
PE
L1
L2
F
K1
+
Line
+
Load
L1 L2 L3
L2.1 L3.1 L1.1
L
ELN3−3PH
Fig. 11−1 Basic circuit diagram
Consider the following criteria when using mains chokes:
ƒ Mains chokes are always required if all interconnected devices are operated with
rated current and speed.
ƒ Mains chokes are not required if the power of the entire network is less than 50 % of
the added continuous powers of all interconnected devices (= standard case).
SP
a
v 0.5 @ SP
aN
SP
a
Sum of the average output power of the axes in the network
Medium mains power, depending on the "in motor mode/in generator mode"
operating status, motor current, motor speed and device losses
SP
ar
Sum of the rated power of the axes in the network
ƒ The use of mains chokes for complying with the EMC category C3 has to be assessed
separately (
¶ 120).