Ndrive FCL Hardware Manual
Installation and Configuration
2.8.1. Digital Inputs (TB102 B)
The digital inputs are opto-isolated and may be connected to current sourcing or current sinking devices, as
shown in
and
. These inputs are designed to connect to other ground-referenced
circuits and are not intended for high-voltage isolation.
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 2-28:
Digital Input Specifications
Input Voltage
Approximate Input Current
Turn On Time
Turn Off Time
+5 V to +24 V
5 mA
4 usec
1500 usec
Table 2-29:
Digital Inputs Pins on the TB102 B Connector
Pin #
Label
Description
In/Out/Bi
1
DI0
Digital Input 0 (Optically-Isolated)
Input
2
DI1
Digital Input 1 (Optically-Isolated)
Input
3
DI2
Digital Input 2 (Optically-Isolated)
Input
4
DI3
Digital Input 3 (Optically-Isolated)
Input
5
DIC
Digital Input Common
Input
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