655 Throttling Isolation Valve Controller Pin-outs

Serial RS-232 Connector
(9-pin Type "D", Male)
Pin Description
1 No Connection
2 Transmit Data
3 Receive Data
4 No Connection
5 Digital Ground
6 Reserved
7 Reserved
8 No Connection
9 No Connection
I/O Connector
(37-pin Type "D", Female)
Pin Description
1 PLO relay #1 - NC contact
2 PLO relay #1 - NO contact
3 PLO relay #2 - NC contact
4 Digital Ground
5 Learn system (Low)
6 Select position set point (Low)
For analog set point only, select simultaneous with pin 11
7 Softstart (Low)
8 Close valve (Low)
9 Reserved
10 Analog set point divided by 10
11 Hold only pin 11 low to select analog set point with pressure control
Hold both pin 6 and 11 low to select analog set point with position control
12 Select set point E (Low)
13 Select set point D (Low)
14 Select set point C (Low)
15 Select set point B (Low)
16 Select set point A (Low)
17 Reserved
18 Reserved
19 Valve open status (Hi=open)
20 PLO relay 1 - common contact
21 PLO relay 2 - common contact
22 PLO relay 2 - NO contact
23 Valve closed status (Hi=closed)
24 Reserved
25 Remote zero (Low)
26 Stop valve (Low)
27 Open valve (Low)
28 PLO #2 status (Low=out of limit)
29 PLO #1 status (Low=out of limit)
30 +15 V Output
31 -15 V Output
32 Power Ground
33 + Set point Input
34 - Set point Input
35 Analog Ground
36 Pressure output voltage
37 Position output voltage
Transducer Connector
(15-pin Type "D", Female)
Pin Description
1 + 15 V Supply
2 + Pressure Input
3 Reserved
4 Reserved
5 Power Ground
6 - 15 V Supply
7 +15 V Supply
8 Reserved
9 -15 V Supply
10 Reserved
11 Digital Ground
12 - Pressure Input
13 Reserved
14 Reserved
15 Chassis Ground

Valve Connector (15-pin Type "D" Female) - Please consult factory

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