Delta C2000 Series User Manual page 174

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
Frame Model
VFD007C43E
VFD015C43E
VFD022C43E
A
VFD037C43E
VFD040C43E
VFD055C43E
VFD075C43E
B VFD110C43E
VFD150C43E
VFD185C43E
C VFD220C43E
VFD300C43E
* Shielded cable length of Frame A should be no longer than 30m and Frame B, C no 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:
1. EN61000-6-4
2. EN61800-3: 1996
3. EN55011 (1991) Class A Group 1
General precaution
To ensure EMC 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.
Comply with EMC (IEC 61800-3)
Rated
current
(ND)
Shielded cable length
4.3
5.9
8.7
14
15.5
17
30m
20
26
35
40
47
63
Class C3
Fc
≤ 8kHz
≤ 6kHz
7-67
Chapter 7 Optional AccessoriesC2000
Comply with EMC (IEC 61800-3)
Class C2
Shielded cable length
10m
Fc
≤ 8kHz
≤ 6kHz
Table 7-64