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Model 1460 I/O Expansion Module Installation and Reference
17
3.3
Acquisition Trigger Input Specifications
Figure 3-1: Acquisition Trigger Input
To trigger from an NPN (pull-down) type photo-detector or PLC output, connect TRIG+ on
the 1460 I/O Expansion Module’s terminal block to +24V and connect TRIG to the output of
the detector. When the output turns ON, it pulls TRIG down to 0V, energizing the In-Sight
camera trigger (Figure 3-2).
Figure 3-2: Acquisition Trigger Input (NPN Source)
Table 3-2: Acquisition Trigger Input Specifications
SPECIFICATION
DESCRIPTION
Voltage
ON 20 to 28V (24V nominal)
OFF 0 to 3V (12V nominal threshold)
Current
ON 10 to 14.4mA
OFF <300µA
Resistance ~2K Ohms
Delay
250 µSec maximum latency between leading edge of trigger and start of acquisition.
Input pulse should be a minimum of 1 ms wide.
Содержание 800-5815-1
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