Delta CP2000 Series, User Manual

Page: 179 / 868

Chapter 7 Optional Accessories

CP2000
7-70
Following table is the suggested shielded cable length of EMC built-in models. User can choose
corresponding shielded cable length in accord to required noise emission and electromagnetic
interference level.
EMC built-in model
Rated current
(ND)
Comply with EMC (IEC 61800-3)
Class C3
Comply with EMC (IEC 61800-3)
Class C2
Frame Model Shielded cable length Fc Shielded cable length Fc
A
VFD007CP4EA-21 3.5
30m
≤ 8kHz
10m
≤ 8kHz
VFD015CP4EB-21 4.3
VFD022CP4EB-21 5.9
VFD037CP4EB-21 8.7
VFD040CP4EA-21 14
VFD055CP4EB-21 15.5
B
VFD075CP4EB-21 17
VFD110CP4EB -21 20
VFD150CP4EB -21 26
C
VFD185CP4EB -21 35
≤ 6kHz ≤ 6kHz
VFD220CP4EA -21 40
VFD300CP4EB -21 47
*
Shielded cable length of Frame A should not longer than 30m and Frame B, C not longer than 50m to prevent cable length
from being too long, which may cause built-in EMC filter malfunction due to overheat resulting from leakage current and
larger wires parasitic capacitance.
EMC Filter Installation
All electrical equipment, including AC motor drives, will generate high frequency / low frequency
noise and will interfere with peripheral equipment by radiation or conduction when in operation. By using
an EMC filter with correct installation, much interference can be eliminated. It is recommended to use
DELTA EMC filter to have the best interference elimination performance.
We assure that it can comply with following rules when AC motor drive and EMC filter are installed
and wired according to user manual:

EN61000-6-4

EN61800-3: 1996

EN55011 (1991) Class A Group 1 (1 st Environment, restricted distribution)
General precaution
To ensure ECM filter can maximize the effect of suppressing the interference of AC motor drive, the
installation and wiring of AC motor drive should follow the user manual. In addition, be sure to observe the
following precautions:
1. EMC filter and AC motor drive should be installed on the same metal plate.
2. Please install AC motor drive on footprint EMC filter or install EMC filter as close as possible to the AC
motor drive.
3. Please wire as short as possible.
4. Metal plate should be grounded.
5. The cover of EMC filter and AC motor drive or grounding should be fixed on the metal plate and the
contact area should be as large as possible.
Table 7-75