Dwyer GFC - Manual (Page 7)

FIGURE 2-a GFC 15-PIN "D" CONNECTOR CONFIGURATION
*+24 VDC power supply configuration is optional for only GFC-110/111/113/114
models.
WARNING: DO NOT CONNECT 24Vdc POWER SUPPLY UNLESS
YOUR GFC CONTROLLER WAS ORDERED AND CONFIGURED
FOR 24Vdc
Important notes:
In general, "D" Connector numbering patterns are standardized. There are, how-
ever, some connectors with nonconforming patterns and the numbering sequence
on your mating connector may or may not coincide with the numbering sequence
shown in our pin configuration table above. It is imperative that you match the
appropriate wires in accordance with the correct sequence regardless of the par-
ticular numbers displayed on your mating connector.
Make sure power is OFF when connecting or disconnecting any cables in the sys-
tem.
The power input is protected by a 1600mA M (medium time-lag) resettable fuse.
If a shorting condition or polarity reversal occurs, the fuse will cut power to the flow
transducer circuit. Disconnect the power to the unit, remove the faulty condition,
and reconnect the power. The fuse will reset once the faculty condition has been
removed.
Use of the GFC flow transducer in a manner other than that specified in this manu-
al or in writing from Dwyer, may impair the protection provided by the equipment.
3
PIN FUNCTION
1 Flow Signal Common
2 0 to 5 VDC Flow Signal Output
3 Common
4 Open Purge
5 Common, Power Supply
6 (unassigned)
7 +12 VDC (+24 VDC*) Power Supply
8 Remote Setpoint
9 4 to 20 mA Return (Common)
10 Common, Setpoint Signal
11 +5VDC Reference for Remote Setpoint
12 Valve Off Control
(Open Collector Compatible)
13 +12 VDC (+24 VDC *) Power Supply
14 4 to 20 mA Flow Signal Output
15 Chassis Ground
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