7 Accessories
7.1 Device-specific accessories
170 DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com
7.1.4 DXC-EXT-LOCSIM simulator
Figure 92: DXC-EXT-LOCSIM
DXC-EXT-LOCSIM is a simple commissioning and test simulator for DC1 
variable frequency drives.
Three microswitches and a PCB mount potentiometer make it possible to 
easily put the variable frequency drive into operation “out of the box” based 
on the corresponding help cards when using the drive’s default settings 
 Section “4.6 Help leaflets”, page 122.
Figure 93: Block diagram DXC-EXT-LOCSIM simulator
The three microswitches can be used to directly drive (from left to right) the 
three digital inputs DI1, DI2, and DI3 with the internal control voltage 
(24 V DC). Meanwhile, the POTI PCB mount potentiometer can be turned 
clockwise to sets the frequency reference value (0 - 50 Hz).
The analog output signal from AO (0 - 10 V DC) will be available at control 
signal terminals 8 and 9 as per the output frequency (0 - 50 Hz).
→
For detailed instructions on how to install the module, please 
refer to instruction leaflet IL04012019Z.
 1 = OFF
 0 = ON
NOTICE
Manual operation!
As per IEC 60449, only extra-low voltage should be connected 
to internal relay K1 via control signal terminals 10 and 11
( 50 V AC,  120 V DC).
1      2      3      4      5      6      7      8      9     10    11
2
DI1
3
DI2
4
DI3
1
5
+10 V/
20 mA
6
POTI
7
0 V
8
AO
0 ... +10 V/
20 mA
9
0 V
10 11
1DC1 2 3 4 5 6 8 9 10 11
P-18 = 1
RUN
7
+
K1
≦ 24 V
AI
0 ... +10 V