Grounding Connections; Control Connections; Pnp Configuration - WEG CFW300 User Manual

3.2.4 Grounding Connections

DANGER!
The inverter must be connected to a protective ground (PE).
„
Use a minimum wire gauge for ground connection equal to the indicated in
„
Table B1 on page
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 neuter conductor of the line that feeds the inverter must be solidly
„
grounded; however, this conductor must not be used to ground the inverter.
Do not share the grounding wiring with other equipment that operate with high
„
currents (e.g.: high voltage motors, welding machines, etc.).

3.2.5 Control Connections

The control connections must be made in accordance with the specification of the connector
of the CFW300 control board. Functions and typical connections are presented in
page 17. For further details on the specifications of the connector signals, refer to
8 TECHNICAL SPECIFICATIONS on page
1 2 3 4 5 6
(+) AI1 (-)
(0 a 20) mA
(4 a 20) mA
(a) NPN Configuration
1 2 3 4 5 6
24 V
(+) AI1 (-)
(0 a 20) mA
(External supply)
(4 a 20) mA
(b) PNP Configuration
NOTE!
The CFW300 inverters are supplied with the digital inputs configures as active
„
low (NPN). In order to change the configuration, check the use of parameter
P271 in the programming manual of the CFW300.
Analog input AI1 is set for input 0 to 10 V, in order to change, check parameter
„
P233 of the programming manual.
113.
31.
7 8 9 10 11 12
AI1
(0 a 10) V
7 8 9 10 11 12
AI1
(0 a 10) V
Figure 3.3: (a) and (b) Signals of C300 control card connector
Installation and Connection
Connector
1 DI1 Digital input 1
2 DI2 Digital input 2
3 DI3 Digital input 3
4 DI4 Digital input 4
5 GND Reference 0 V
6 AI1 Analog input 1
(Current)
7 GND Reference 0 V
8 AI1 Analog input 1
(Tension)
9 +10 V Reference +10 Vdc
for potentiometer
10 DO1-RL-NC Digital output 1
(NC contact of relay 1)
11 DO1-RL-C Digital output 1
(Common point of relay 1)
12 DO1-RL-NO Digital output 1
(NO contact of relay 1)
(*) For further information, refer to the detailed specification in
Section 8.2 ELECTRONICS/GENERAL DATA on page
Figure 3.3 on
Chapter
Description
(*)
32.
CFW300 | 17