Section 8. Theory of Operation
Model 5200 High-Level Orderpicker
Pinout Matrix Item #
Connection
66
JPT8-5
STEER CURRENT LIMIT
Same as PS1 on the steer power head.
67
JPT8-4
STEER CURRENT FB
Same as PS1 on the steer power head.
68
JPT8-11
NC
Same as PS1 on the steer power head.
69
JPT8-12
NC
Same as PS1 on the steer power head.
70
JPT8-13
NC
Same as PS1 on the steer power head.
81
JPT8-14
NC
Same as PS1 on the steer power head.
82
JPT12-13
B+PCF
B+ supplied to the warning light, P contactor coil, and the Travel Alarm. It comes from the STM through FU1 and is dependant on B+PC at JPT12-1.
PC contactor closed = B+ PC contactor open = 0V
STM
Warning Light, P contactor coil, and Travel Alarm
83
JPT12-18
PUMP CTRL
Path for the STM to supply B– to the P contactor. There is also an LED (IL6-5) on the STM that lights when B– is supplied to the coil.
Not activated= 20.5V Activated= less than 1V
STM
P Contactor
84
JPT12-16
TRAVEL ALARM
Path for the STM to supply B– to the Travel Alarm. There is also an LED (IL6-2) on the STM that lights when B– is supplied.
Not activated= 20.5V Activated= less than 1V
STM
Travel Alarm
85
JPT12-14
WARNING LIGHT
Path for the STM to supply B– to the warning light. There is also an LED (IL6-1) on the STM that lights when B– is supplied.
Not activated= 20.5V Activated= less than 1V
STM
Warning Light
86
JPT12-21
B+ESTOP RELAY
B+ supplied to the load holding and lift lower solenoids, PC contactor coil, and the brake coil. It comes from the STM through the K1 relay and is dependant on B+F from FU2.
EPO closed = B+ EPO open = 0V
STM
LH, LL solenoids, PC and Brake coils, Steer Controller Card
87
JPT12-9
L/H SOL CTRL Path for the STM to supply B– to the L/H solenoid. There is also an LED (IL6-9) on the STM that lights when B– is supplied to the coil.
Not activated= 20.5V Activated= less than 1 V
STM
Load Holding Solenoid Coil
88
JPT12-8
L/L SOL CTRL
Not activated= 20.5V Full speed lift= 0.5V Full speed lower= 19.5V
STM
Proportional Lift Lower Solenoid Coil
8-20
Function Description
Theory of Operation
Path for the STM to supply B– to the L/L solenoid. There is also an LED (IL6-7) on the STM that lights when B– is supplied to the coil.
Normal Level
Signal Source
SignalUser
Publication Number: 1043922B, Revised: 2 Sept 2015
