1253 Throttle Valve Controller Pin-outs

J2 Power Connector
Pin Description
1 +15 to +30 VDC Power Supply Input
(also connects to J1 Pin #12)
2 Power Supply Common
(also connects to J1 Pin #11)
3 -15 VDC (external supply to transducer)
(also connects to J1 Pin #21)
4 Pressure Signal Common
(also connects to J1 Pin #13)
5 Pressure Signal Input
(also connects to J1 Pin #20)
6 Limit-switch Common
(also connects to J1 Pin #24)
7 Open Limit-switch Output
(also connects to J1 Pin #22)
8 Close Limit-switch Output
(also connects to J1 Pin #23)
9 Chassis Ground
(also connects to J1 Pin #1 & 25)
J1 Input Connector
Pin Description
1 Chassis Ground
(also connects to J2 Pin #9)
2 Tx (RS-232)
3 RxD (RS-232)
4 No Connection
5 No Connection
6 No Connection
7 Digital Common
8 +5 VDC Output (powers portable terminal)
9 Set Point Input (Hi side)
10 Set Point Return (Lo side)
11 Power Supply Common
(also connects to J2 Pin #2)
12 +15/30 V Power Supply Input
(also connects to J2 Pin #1)
13 Pressure Signal Common (Lo)
(also connects to J2 Pin #4)
14 No Connection
15 No Connection
16 No Connection
17 No Connection
18 Manual Close Command Line
19 Manual Open Command Line
20 Pressure Signal Input (Hi side)
(also connects to J2 Pin #5)
21 -15 VDC (External supply to transducer)
(also connects to J2 Pin #3)
22 Open Limit-switch Output
(also connects to J2 Pin #7)
23 Close Limit-switch Output
(also connects to J2 Pin #8)
24 Limit-switch Common
(also connects to J2 Pin #6)
25 Chassis Ground
(also connects to J2 Pin #9)

J3 Valve Connector - Please consult factory

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