7 Accessories
7.1 Device-specific accessories
164 DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com
7.1.1 DXC-EXT-IO… coupling module
Coupling modules DXC-EXT-IO110 and DXC-EXT-IO230 can be used to 
integrate the digital inputs on DC1 variable frequency drives directly into 
circuits with 110 V AC / 230 V AC. In the actual coupling mode, the inputs 
(connection terminals 1 to 4 and 12 and 13) are galvanically isolated from the 
variable frequency drive‘s digital inputs (DI1 to DI4).
Figure 86: DXC-EXT-IO110 and DXC-EXT-IO230
Figure 87: Block diagram DXC-EXT-IO110 and DXC-EXT-IO230
Parameters:
→
For more information on the coupling modules and on output 
expansions, please refer to Application Note AP040032
(DC1, I/O Configuration).
P-12 = 0 Terminal mode (WE)
P-15 = 5 WE = The analog value on terminal 6 will be used as the 
frequency reference value (AI)
P-15 = 2 Terminal 12 and 13 digital input active (DI4)
P-18 = 0 RUN (WE)