Ametek Land SPOT ACTUATOR, Руководство пользователя

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Fixed Spot Thermometers
User Guide 4 - 4
SPOT Actuator
4.3 Control by PLC using the analogue cable
The analogue cable must be connected from the control system to the
actuator if 24 V digital control or 4 to 20 mA analogue output are required, or
to power the unit if Power over Ethernet (PoE) is not available.
24V / 0V
The actuator accepts 18 to 36 V. The actuator and SPOT typically draw 25 W.
+mA Out / -mA Out
The current SPOT temperature can be read just as if the cable was connected
directly to the instrument.
Relay 1a / Relay 1b
The relay is normally open unless the actuator is in a fault state.
Trigger In+ / Trigger In-
The trigger is used to remotely initiate a scan. Connect 24 V to Trigger In+
and 0 V to Trigger In-. The scan is triggered by a rising edge that is sustained
for at least 10 ms. Unless the actuator has been configured as a Billet
Scanner, it will automatically calculate and go to the centre of the hottest hot
region at the end of the scan.