2 — INSTALLATION AND WIRING
1212 & 1212P Manual - Sep 2019
pg. 6
WIRING: STANDARD INSTALLATION, 1212
The wiring diagram presented in Figure 3a shows a typical installation for a DME application. This
installation is shown with a single-ended 3-wire 5k
Ω
potentiometer throttle and a reverse switch.
With wigwag throttles, a reverse switch is not used and Pin J1-12 is left unconnected.
The optional speed inhibit input can be wired into the circuit in various ways; in the standard
installation shown here, it is B- active (Inhibit Type parameter set to 0).
The J2 connector can be used interchangeably for the programmer or for the battery charger.
Figure 3a
Standard Wiring Configuration, Curtis 1212 Controller.
SPEED INHIBIT
KEYSWITCH
CONTROL
FUSE
M2
M1
J1-8
J3-1
B-
B+
POWER
FUSE
BATTERY
Programmer
1212 Controller
MODE (M1,M2)
J1-4
J1-2
J1-1
J1-6
J2-4
J2-3
J2-2
J2-1
B+
I/O GND
Tx
Rx
MOTOR
J1-5
KSI
MODE SW
STATUS LED
REVERSE
PUSH
PUSH SW
J1-14
HORN
I/O GND
POT WIPER
J1-3
J1-11
BDI(0-5V)
J3-2
BRAKE +
BRAKE -
EM BRAKE
J1-9
B+
B-
CHARGE INHIBIT
J2-3
CHARGER
SOCKET
J1-10
POT HIGH
J1-7
B+
POT LOW
HORN SW
STATUS LED
R
HORN
INHIBIT SW
J2-4
J2-2
B+
I/O GND
BRAKE SW(optional)
J1-12
REVERSE SW
J1-13
5K
Ω
THROTT
LE
POT
100k
Ω
SPEED
POT
SPEED LIMIT POT