Section 8.Theory of Operation

Pinout Matrix

Model 9600/9700 Swing-Reach ® Lift Truck

203JPT22-10CHANNELB_4Part of the steering position feedback from the Steer Motor Encoder when the drive unit is rotated. It is a square wave identical to Channel A_4 but different phase. The TM uses the phase relationship of the two channels to determine that the direction and speed of the steering response is the same as that requested.

Not Turning: <1V or >4V Turning either direction: approx. 2.4V

Steer Motor Encoder TM

204JPT22-11DGNDB– for the Home Steer Prox. Measure B+ at TP1 to verify connections. Then check for <0.5V wrt TP4.

205JPT22-12CHANNELB_5Part of the height position feedback when the encoder is rotated. It is a square wave signal identical to Channel A_5 but different phase. The TM uses the phase relationship of the two channels to determine whether the main carriage on the truck is lifting or lowering. The number of pulses is used to determine the height.

206JPT22-19FU1_SENSEB+ when STR contactor closes. This voltage is used by the TM to determine the state of FU1 and the STR contactor tips.

207JPT22-20FU4_SENSEB+ when there is not an open between B+ and PC2. This voltage is used by the TM to determine the state of FU4 and the LHC contactor tips.

208JPT22-21EPO_SENSESense wire used by the TM to determine when the EPO is open. This is used to initiate braking and display a message.

At Rest: <1V or >4V Full lift/lower: approx. 2.3V

TMHome Steer Prox

Closed: B+ Open: voltage drops very slowly

LPC Closed: B+ Open: voltage drops slowly to <1V

EPO closed and key switch ON: B+

EPO open: <0.5V

TMMain Lift Height Encoder

STRTM

LHCTM

EPOTM

210JPT24-4DGND B– for TMID0.

211JPT24-5DGND B– for the Rail Sense switch (S15).

209JPT24-3DGND B– for Custom In T1. Measure B+ at TP1 to verify connections. Then check for <0.5V wrt TP4.

TMCustom In T1

TMTM

S15TM

Publication: 1089040, Issued: 08 Apr 2016