Grounding Connections; Control Connections - WEG CFW700 Manual Del Usuario

Installation and Connection

3.2.4 Grounding Connections

DANGER!
The inverter shall be connected to a Protective Ground (PE).
„
Use the minimum ground wiring gauge as indicated in the
„
Connect the inverter grounding connections to a ground bus bar, to a single
„
ground point, or to a common grounding point (impedance ≤ 10 Ω).
The neutral conductor of the network shall be solidly grounded; however,
„
this conductor shall not be used to ground the inverter.
It is necessary to use a copper cable with 10 mm
„
the same wire gauge as specified in
inverter to the ground protection to be in accordance with IEC61800-5-1
since the leakage current is greater than 3.5 mA AC.

3.2.5 Control Connections

The control connections (analog inputs/outputs and digital inputs/outputs), shall be performed
in connector XC1 of the CC700 control board. Functions and typical connections are presented
in figures 3.5 (a), (b) and (c).
Linedrive encoder or push-pull
(1) Refer to figure 3.5 (b) for the open-collector encoder connection.
(2) Refer to figure 3.5 (c) for active low digital inputs connection.
(a) Linedrive encoder or push-pull and active high digital inputs
14 | CFW700
(1)
Figure 3.5 (a): XC1 connection terminals
tables B.1
minimum or 2 cables with
2
tables B.1 and B.2 for connecting the
Active high digital inputs
and B.2.
(2)