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Nmark SSaM Hardware Manual
2.6. Digital Outputs (TB101 A)
The digital outputs are optically-isolated and can be connected in sourcing or sinking configurations. The
digital outputs are designed to connect to other ground referenced circuits and are not intended to provide
high-voltage isolation.
Outputs must be connected in either all sinking or all sourcing mode.
how to connect to an output in current sinking and current sourcing mode, respectively.
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.
N O T E : Power supply connections must always be made to both the Output Common Plus (OP) and
Output Common Minus (OM) pins as shown in
Table 2-15:
Digital Outputs Pinout (TB101 A)
Pin #
Label Description
1
OP
Output Common Plus
2
O0
Output 0 (Optically-Isolated)
3
O1
Output 1 (Optically-Isolated)
4
O2
Output 2 (Optically-Isolated)
5
O3
Output 3 (Optically-Isolated)
6
O4
Output 4 (Optically-Isolated)
7
O5
Output 5 (Optically-Isolated)
8
O6
Output 6 (Optically-Isolated)
9
O7
Output 7 (Optically-Isolated)
10
OM
Output Common Minus
Table 2-16:
Mating Connector Part Numbers for the Digital Output Connector (TB101 A/B)
10-Pin Terminal Block
Table 2-17:
Digital Output Specifications (TB101)
Opto Device Specifications
Maximum Voltage
Maximum Sink/Source Current
Output Saturation Voltage
Output Resistance
Rise / Fall Time
Reset State
Suppression diodes must be installed on outputs driving relays or other inductive devices. This protects the
outputs from damage caused by inductive spikes. Suppressor diodes, such as the 1N914, can be installed
on all outputs to provide protection. It is important that the diode be installed correctly (normally reversed
biased). Refer to
Figure 2-10
9
for an example of a current sourcing output with diode suppression.
www.aerotech.com
Figure 2-9
Aerotech P/N
ECK01294
for an example of a current sinking output with diode suppression and
Chapter 2
Installation and Configuration
Figure 2-9
and
and
Figure
2-10.
In/Out/Bi
Input
Output
Output
Output
Output
Output
Output
Output
Output
Input
Wire Size: mm
Phoenix P/N
1881406
Value
24 V maximum
60 mA/channel @ 50°C
2.75 V at maximum current
33 Ω
250 usec (typical)
Output Off (High Impedance State)
Figure 2-10
illustrate
Connector
2
[AWG]
0.5-0.080 [20-28]
Figure 2-
31
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