Toyota 7BPUE15 Service Manual page 326

Toyota Orderpicker Model
Field current*
M- shorted to B-*
Battery under/over voltage: Less than
+16 volts cuts down the output from
the TPA and limits travel speed. Greater
than +45 volts places the controller in a
s h u t down condition
temperature of the traction power
amplifier is 85 C (185 F) and above.
Overheating is unusual, but can occur
if the traction power amplifier is
installed incorrectly or overloaded. At
over temperature, the drive current
limit is linearly decreased from full set
current limit down to zero. Plugging
current is not reduced by any thermal
conditions to allow full plugging
strength a t all times. When the traction
amplifier is operating a t less than -25 C
13 F) the current limit is cut back
,
resulting in reduced travel speed and
acceleration.
"Disables PC contactor through PC
line. When the PC
volts the PC opens and the STM tells the
CM to display a code 2,2
00700-CL222-05, 1 5
Service Manual
line goes to 5
2005
March
9.
Section Theory of Operation
Travel