Ndrive HP 10/20/30 User’s Manual
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4-9
4.1.5. User Power Connector (TB303)
This connector provides access to the Ndrive HPs internal power supply, which may be
used to power external devices (500 mAmps maximum). It also provides a connection to
power the opto-isolated PSO (Laser Firing) output (see Figure 4-14).
Table 4-8.
User Power Connector Pin Assignment (TB303)
Pin # Label
Description
In/Out/Bi
1
+5 User Return
User +5 Volt Signal Common
Output
2
+5 User Return
User +5 Volt Signal Common
Output
3
+5 Ext.
User +5 Volt Power *
Output
4
FP
Power for PSO opto-isolated output Input
5
FM
Common for PSO opto-isolated output
N/A
* Total user +5V power from all outputs is limited to 500 mA by an internal re-settable fuse.
4.1.6. Opto-Isolated Outputs (TB304)
The outputs are software configurable via the DriveIOConfig axis parameter as sourcing
or sinking, and are driven by a PS2802-4 opto-isolator that is rated for 40 volts maximum
and up to 80 mA/channel, not to exceed 90 mW per channel. Figure 4-9 and Figure 4-10
illustrate how to connect to an output in current sinking and current sourcing modes.
The connection must always be made to both the Output
Common Plus and Output Common Minus to prevent
glitches on the outputs (see Figure 4-9 and Figure 4-10).
Table 4-9.
Opto-Isolated Output Connector Pin Assignment (TB304)
Pin #
Label
Description
In/Out/Bi
1
OP
Output Common Plus
Input
2
OM
Output Common Minus
Input
3
Output 0
Output 0 (Optically-Isolated)
Output
4
Output 1
Output 1 (Optically-Isolated)
Output
5
Output 2
Output 2 (Optically-Isolated)
Output
6
Output 3
Output 3 (Optically-Isolated)
Output
7
Output 4
Output 4 (Optically-Isolated) Output
8
Output 5
Output 5 (Optically-Isolated) Output
9
Output 6
Output 6 (Optically-Isolated) Output
10
Output 7
Output 7 (Optically-Isolated) Output
Table 4-10.
-IOPSO Output Device Specifications (TB304)
Specification
-IOPSO Value
-IOPSOH Value
Maximum Power Dissipation
90 mWatts / Channel
600 mWatts / Channel
Maximum Voltage
40 Volt Maximum
24 Volt Maximum
Maximum Sink/Source Current
80 mAmps / Channel
1 Amperes / Channel
Output Saturation Voltage
~ 0.7 – 0.9 Volts
~ 0.32 Volts
Rise / Fall Time
250 usec (typical)
1 msec (typical)
Maximum Output Frequency
1 kHz
100 Hz
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