Section 9. Theory of Operation
Toyota Orderpicker Model 7BPUE 15 Service Manual
Pinout Matrix
JPT10-4
B+KEY
Supplies B+ Key to the circuitry on the STM via the over mast cable when the key switch is closed.
B+ with key switch closed. OV with key switch open.
Carriage Manager
STM
JPT10-3
B+ ESTOP
Supplies B+ ESTOP to the K1 relay coil on the STM via the over mast cable when the EPO switch (S21) is closed. This closes the relay and supplies B+ ESTOP Relay to circuits on the STM.
B+ with the EPO switch closed. OV with the EPO Open
Carriage Manager
K1 Relay
JPT10-1
B-
Supplies B- to the carriage via the over mast cable when the battery is plugged In.
<O.SVdc wrt TP4
STM
Carriage Manager
STM
Carriage Manager
(B-) +10.8 - 13Vdc with key switch closed
JPT9-6
12VP
Supplies 12V from the STM power supply to the Carriage Manager via the over mast cable. The 12V is used to power the C M power supply and supplies voltage to all components using the 1 1.3VP. If not present, check voltage at STM JPT9-6and see if IL1 is lit.
JPT9-5
DEADMAN 2
Output from deadman switch S23 informs Switch the microprocessor on the STM that the Closed: < 1 Vdc switch is closed and lights 112 on the STM. Open: 5Vdc
Carriage Manager
STM
JPT9-2
DGND
Supplies B- to the carriage via the over mast cable when the battery is plugged In.
STM
Carriage Manager
STM
Carriage Manager
JPT9-4
TRANSMIT
The wire that carries the communications from the STM to the CM. N o usable information can be gained by measuring the voltage on this wire.
<O.SVdc wrt TP4 (B-) N o useful voltages are measurable
00700-CL222-05, 1 5 March 2005
