Emerson PACMotion VFD Series - Quick Start Up; Important Safety Information

PACMotion VFD Input/Output Chokes Installation Guide Section 2
GFK-3185A August 2020
Input Line Chokes 2
Section 2: Input Line Chokes
2.1 Using Input Chokes
Input chokes help to protect the VFD from spikes on the incoming power supply, as well as reducing
input harmonic currents. It is recommended that an input choke is used under the following
circumstances:
• On all 600 Volt Size 2 and 3 VFDs
• On all applications where the incoming power supply uses a sliding busbar or brush-gear-type
arrangement (e.g. commonly used on overhead cranes)
• On all installations where the supply impedance is low or the fault current is very high
• On all installations where the incoming power supply is prone to spikes, dips notches, or other
disturbances
Typically, the input choke will provide a significant reduction in harmonic distortion on the incoming
power supply, and will reduce the overall current into the drive cover and back pages.
2.2 Dimensions – IP20 Single Phase Versions
Part Number
VFD
Size
Connection
(mm
2
)
L
(mm)
H
(mm)
B
(mm)
N1
(mm)
N2
(mm)
ØD
(mm)
Rated
Volts
Rated
Amps
Inductance
(mH)
Weight
(kg)
IC866-ICH-
016-201-20
1
4
78
80
78
56
49
4.8
230
Max
16
1.8
1.1
IC866-ICH-
025-201-20
2
10
85
158
76
100
55
5
25
1.1
1.8
Figure 1: Front Profile
Figure 2: Left Profile