Synrad Novanta OEM ti Series, User Manual

Page: 62 / 106

SAMPLE I/O CIRCUITS PAGE | 62
Sample outputs
Your laser’s optoisolated, bi-directional switched outputs can drive small loads (50 mA max), PLC inputs,
or relays that can control higher current loads. The following figure illustrates one method of controlling
a remote warning lamp using power supplied by +24 VDC Auxiliary Power output. Remember to size
current-limiting resistor, R1, so that the current draw does not exceed 50 mA.
Figure 4-14 Output driving warning lamp.
The following figure illustrates a method for controlling a higher voltage, higher current load by using a
24 V control relay. Ensure that the relay coil’s pull-in current does not exceed 50 mA. A diode or surge
suppressor must be installed across the relay coil to prevent voltage spikes from damaging outputs.
Figure 4-15 Output driving relay.