Model 9600/9700 Swing-Reach ® Lift Truck

Section 8.Theory of Operation

Pinout Matrix

123JPLA1-1B+K3 B+ to the LPA when K3 is energized.K3 energized: B+ K3LPA

124JPLA1-6LPC CONTACTOR Control path for the LPC. The LPA supplies B– for the contactor by way of the B–terminal.

125JPLA1-7 L VEL SENSOR– B– for the Lift Motor En coder (LME). It also provides B– to the Lift Motor Temp (LMT) sensor.

LPC deenergized: B+ energized: 26V

Measure B+ at TP1 to verify connections. Then check for <0.5V wrt TP4.

LPALPC

LMELPA

126JPLA1-8L TEMP+Input from the Lift Motor Temperature (LMT) sensor. Voltage will vary with lift motor temperature. Used by the LPA to adjust lift motor performance.

127JPLA1-11ID0B+ to the LPA when K3 tips energize. It is used as an identifier to determine correct connection.

Approx. 1V @ 75°F (24°C) LMTLPA

K3 energized: B+ K3LPA

128JPLA1-13LPC SUPPLY (B+K3) B+ supply to the LPC from the LPA.B+LPALPC

129JPLA1-23BUS0+Positive component of the digital communications between the TPA, LPA, TM, and GM.

130JPLA1-26L VEL SENSOR +5V supply to the LME. This voltage is produced by the LPA from B+K3.

131JPLA1-31L VEL PHASEAInput from the Lift Motor Encoder (LME). It is a square wave that is either high (>3V) or low (<1V). The frequency varies directly with motor speed. Identical to LVEL Phase B except for phase. The LPA uses the relationship between phases to determine lift and lower speed.

132JPLA1-32L VEL PHASEBInput from the Lift Motor Encoder (LME). It is a square wave that is either high (>3V) or low (<1V). The frequency varies directly with motor speed. Identical to LVEL Phase A except for phase. The LPA uses the relationship between phases to determine lift and lower speed.

133JPLA1-35BUS0–Negative component of the digital communications between the TPA, LPA, TM, and GM.

134JPS4-5BUS0–Negative component of the digital communications between the TM and GM.

Publication: 1089040, Issued: 08 Apr 2016

2.3VTMTPA, LPA, TM, GM

4.75 to 5.25V

Motor Stopped: >3 or <1V

Motor

Turning: approx. 2.3V

Motor Stopped: >3 or <1V

Motor Turning: approx. 2.3V

LMELPA

LMELPA

2.3VTMGM