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AMETEK SFA Series Ethernet Programming User Manual

Page 52

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Ethernet Configuration and Remote Programming

SG Series Programming

5-12

M550129-03 Rev K

SCPI Command

Internal Relay Contact State

Pin (return to Pin-5)

OUTP:ISOL 0

ISOLATION relay = open

7

OUTP:ISOL 1

ISOLATION relay = closed

OUTP:SENSE 0

REMOTE SENSE relay = open

8

OUTP:SENSE 1

REMOTE SENSE relay = closed

OUTP:POL 0

POLARITY relay = open

6

OUTP:POL 1

POLARITY relay = closed

Figure 5-8. Example of Open-Collector, TTL Input, and Relay Output Circuits

CAUTION

External relays must not be hot-switched; ensure that the voltage across the relay
contacts and the current through them is zero prior to changing the relay states.