Aerotech Ndrive ML Series, Hardware Manual

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68 Chapter 3 www.aerotech.com
3.4. Opto In Connector (Digital Inputs) (TB203)
The digital inputs are opto-isolated and may be connected to current sourcing or current sinking devices, as
shown in
Figure 3-7 and Figure 3-8 . These inputs are designed to connect to other ground-referenced circuits
and are not intended for high-voltage isolation.
Inputs 0-3 and inputs 4-7 have separate common inputs (refer to Table 3-12 ). Each 4-bit bank of inputs must
be connected in the same configuration (sinking or sourcing). Bank 1 can be connected differently from Bank
2, however.
The opto-isolator's common connections can be directly connected to the drive's power supply; however,
doing so will effectively defeat the isolation and will reduce noise immunity.
Table 3-11: Digital Input Specifications
Input Voltage Approximate Input Current Turn On Time Turn Off Time
+5 V 1 mA 200 usec 2000 usec
+24 V 6 mA 4 usec 1500 usec
Table 3-12: Opto In Connector Pinout (TB203)
Pin# Description In/Out/Bi
1 Digital Input Common for inputs 0 - 3 Input
2 Digital Input 0 (Optically-Isolated) Input
3 Digital Input 1 (Optically-Isolated) Input
4 Digital Input 2 (Optically-Isolated) Input
5 Digital Input 3 (Optically-Isolated) Input
6 Digital Input 4 (Optically-Isolated) Input
7 Digital Input 5 (Optically-Isolated) Input
8 Digital Input 6 (Optically-Isolated) Input
9 Digital Input 7 (Optically-Isolated) Input
10 Digital Input Common for inputs 4 - 7 Input
Table 3-13: Mating Connector Part Numbers for the Opto In Connector (TB203)
Aerotech P/N Phoenix P/N
Wire Size: mm
2
[AWG]
10-Pin Terminal Block ECK01294 1881406 0.5-0.080 [20-28]
N O T E : Inputs must be connected in the all sourcing or all sinking configuration.
Ndrive ML -IO Expansion Board