Accessories - WEG CFW-11 User Manual

Observe that the inverters with the external 24 Vdc power supply option use terminals XC1:11 and 13 as the
input for the external power supply and no longer as an output as in the standard inverter (figure 7.2).
In case of interruption of the external 24 Vdc power source, the digital inputs/outputs and analog outputs will
have no power supply, even if the mains power is on. Therefore, it is recommended to keep the 24 Vdc power
source always connected to terminals XC1:11 and 13.
The keypad displays warnings indicating the inverter status: if the 24 Vdc power source is connected, if the
mains power source is connected, etc.
24 Vdc
±10 %
@1.5 A
Figure 7.2 - Connection terminals and 24 Vdc external power supply rating
NOTE!
A class 2 power supply must be used to be in accordance to UL508C.

7.2 ACCESSORIES

The accessories are installed to the inverter easily and quickly using the "Plug and Play" concept. Once the
accessory is connected to the slot, the control circuitry identifies the model and displays the installed accessory
code in P0027 or P0028. The accessory shall be installed with the inverter power supply off.
Connector XC1
1 + REF
2 AI1+
3 AI1-
4 - REF
5 AI2+
6 AI2-
7 AO1
8 AGND (24 V)
9 AO2
10 AGND (24 V)
11 DGND *
12 COM
13 24 Vdc
14 COM
15 DI1
16 DI2
17 DI3
18 DI4
19 DI5
20 DI6
21 NC1
DO1
22 C1
(RL1)
23 NO1
24 NC2
DO2
25 C2
(RL2)
26 NO2
27 NC3
DO3
28 C3
(RL3)
29 NO3
Option Kits and Accessories
7
7-3