Accessories - WEG CFW701 User Manual

Option Kits and Accessories
Inverters with this option have a built-in DC/DC converter with a 24 Vdc input that provides
adequate outputs for the control circuit. Therefore, the control circuit power supply will be
redundant, i.e., it can be provided either by a 24 Vdc external power supply (connection as
shown in Figure 7.1 on page 38) or by the standard internal switched mode power supply
of the inverter.
Observe that the inverters with the external 24 Vdc power supply option use terminals XC1:34
and 36 or XC1:15 and 16 as the input for the external power supply and no longer as the output
like in the standard inverter (Figure 7.1 on page 38).
In case of interruption of the external 24 Vdc power supply, the digital inputs/outputs will no
longer be fed, even if the mains power is on. Therefore, it is recommended to keep the 24 Vdc
power supply always connected to the terminals XC1:34 and 36 or XC1:15 and 16.
24 Vcc
± 10 %
@ 1.5 A
24 Vcc
± 10 %
@ 1.5 A
a) Connection terminals for b) Connection terminals for
XC1:34 and 36 XC1:15 and 16
Figure 7.1: (a) and (b) External 24 Vdc power supply capacity and connection terminals

7.2 ACCESSORIES

The accessories are installed to the inverter easily and quickly using the "Plug and Play" concept.
When an accessory is connected to the slots, the control circuit automatically identifies the
model of this accessory and its code is presented in the parameter P0028. The accessory shall
be installed with the inverter power supply off.
The code and model of each available accessory is presented in the Table 7.1 on page 39.
The accessories can be ordered individually and they will be provided in their own packaging
containing the components and guides with detailed instructions for installation, operation and
programming.
38 | CFW701