Eliwell EWCFW-08 Bedienungsanleitung Seite 55

CHAPTER 3 - INSTALLATION AND CONNECTION
cabinet is required, the maximum length of the remote
keypad cable is 3 m (9.84 ft). In this case, the remote
keypad, the control and signal wiring must be located inside
the cabinet (the remote keypad can be installed in the
cabinet front door, refer to items 8.6.1 and 8.8).
2) The maximum switching frequency is 10 kHz. Exception:
5 kHz for models 27 up to 36 and models 47 to 450.
For Class A1 systems also refer to note 7.
3) The maximum motor cable length is 50 m (164 ft) for models
from 49 and 50, 20 m (65.6 ft) for models from 9 to 26, and
from 37 to 40,47 and 48, 10 m (32.8 ft) for models from 1 to
8, 27 to 30 and 41 to 46 and 5 m (16.4 ft) for models from
31 to 36. For Category C2 systems also refer to note 7.
4) In models 31 to 34 (also refer to note 7), a CM choke at
inverter output is required: TOR1-CFW08, 1 turn. The toroid
is mounted inside the N1 kit that is provided with these
models. For installation refer to figure 3.19.
5) In models from 41 to 46, a CM choke at filter input is
required: TOR2-CFW08, 3 turns. For installation refer to
figure 3.19.
6) In models 41 to 44, it is required to use a shielded cable
between the external filter and the inverter.
7) Category C2 drives were also tested using the limits of
conducted emission for industrial applications ("second
environment") and unrestricted distribution, i.e., Category
C3 (refer to notes 2 and 3 in item 3.3.2 for definitions).
In this case:
- The maximum cable length is 30 m (98.4 ft) for models
from 1 to 8, 35 and 36 and 20 m (65.6 ft) for models from
27 to 34;
- The maximum switching frequency is 10 kHz for models
31 to 34 and 5 kHz for models from 1 to 8, 27 to 30, 35
and 36;
- Models 31 to 34 do not require any CM choke at inverter
output (as stated in note 4).
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