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6
Curtis 1268 Manual,
Rev. D
CONNECTIONS
Low Current Connections
Three low current connectors are built into the 1268 controller. They are
located in a row on the top of the controller:
J1-
1
Keyswitch Input (KSI)
input and return for main contactor coil
J1-
2
Logic Enable
input from run/store switch
J1-
3
Fuse Sense
input from WalkAway
™
fuse sense line
J1-
4
Logic Power
power to controller logic
J1-
5
(not used)
—
J1-
6
(not used)
—
J1-
7
(not used)
—
J1-
8
Pedal Interlock Switch
input from pedal switch, wired to throttle
J1-
9
WalkAway™ Return
coil return for WalkAway
™
relay
J1-
10
Forward
input from forward switch
J1-
11
Reverse
input from reverse switch
J1-
12
(not used)
—
J1-
13
Pot High
+5V supply through 453
Ω
(or ITS input)
J1-
14
Pot Low
453
Ω
to ground
J1-
15
Pot Wiper
throttle wiper input (or ITS input)
J1-
16
LED Ground
ground for external LED
J1-
17
Main Contactor
contactor coil driver low-side output
J1-
18
Brake Light Driver
relay driver low-side output
J1-
19
Reverse Alarm
alarm low-side driver output
J1-
20
Mode Switch
input from mode switch
J1-
21
(not used)
—
J1-
22
External LED Driver
LED driver high-side output
J1-
23
Auxiliary Driver
WalkAway
™
/EMB driver low-side output
J1-
24
(not used)
—
The
24-pin
connector provides the logic control connections. The mat-
ing connector is a 24-pin Molex Mini-Fit Jr. connector p/n 39-01-2245 using
type 5556 terminals. The appropriate wire gauge is 18–24 AWG.
2 — INSTALLATION & WIRING:
Controller
J1
J2
J3
J1
Logic connector
J2
Speed Sensor connector
J3
Programmer connector
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
J1