Emerson EZMotion - Digital I;O Specifications; Connecting Motor Encoder Feedback to the Unidrive SP

8 EZMotion User/Programming Guide
www.controltechniques.com Revision: A8
The digital I/O can be used to control different functions in EZMotion. The digital I/O on the EZMotion are updated at the Trajectory
Update Rate. The Trajectory Update Rate can be found on the Setup view in PowerTools Pro (see Setup View on page 74 for more
information on the Trajectory Update Rate).
The digital I/O of EZMotion are also unique (as compared to Unidrive SP/Digitax ST digital I/O and SM-I/O Plus/SM-IO32 module I/
O) because they can be used in the EZMotion high speed capture process. Even though they are only updated once every
Trajectory Update, the EZMotion processor knows when they activate to within 1 microsecond. Therefore, when Capture is used,
they can be accurate to 1 microsecond (see Capture View on page 96 for more information on Capture object).
Figure 4 below shows a wiring diagram for the digital I/O on the SM-EZMotion module.
Figure 4: SM-EZMotion I/O Wiring Diagram
3.6 Digital I/O Specifications
3.7 Connecting Motor Encoder Feedback to the Unidrive SP
Figure 5 can be used to connect the encoder feedback signals for various different motors to the Unidrive SP. For further installation
information, please refer to the Unidrive SP User Guide.
1
7
23456
24 Vdc
Supply
+
-
Load
Load
0 V Common
Input 1
Input 2
Input 3
Input 4
Output 1
Output 2
I/O Type: Sourcing
Input Turn on Voltage: 15 Vdc +/-0.5 Vdc
Input Voltage Range: 0 Vdc to +24 Vdc
Max Input Voltage: +/- 30 Vdc
Output Voltage: Depends on the 24 Vdc Supply
Max Output Current: 20 mA Total for both Outputs