INSTALLATION AND OPERATION MANUAL
SX TRANSISTOR CONTROL
Page
39
March 2000
Section 5. TRUCK MANAGEMENT MODULE (TMM)
Section 5.1 General Features
The Truck Management Module is a multi-functional
accessory card (IC3645TMM7A), or an integral function of
the SR Pump control when used with the SX Family of
Traction controls. The Module provides the OEM with the
ability to initiate status codes or operator warning codes
to be displayed on the Dash Display whenever a normally
open switch or sensor wire provides a signal to the
Module.
The TMM Module can be used to display a separate
status code indicating an over temperature of traction
motors, hydraulic motors, or any other device or system
that can activate a switch that closes.
It can also be used as a Brush Wear Indicator (BWI). The
Brush Wear Indicator is designed to detect a “worn-out
brush” and display a fault code on the Dash Display to
warn maintenance personnel that the motor brushes need
to be replaced before they wear to the point of causing
destructive damage to the motor commutator surface. The
BWI function is compatible with any sensor that short
circuits to the motor armature to signal limits of brush
wear.
Note: Motor armature must be in the positive side of the
battery circuit.
Section 5.2 Operation
The Module utilizes 9 OEM input points and 3 output
points that connect to the "Y" plug on the traction logic
card.
Due to the low level signal value of this output,
shielded wire should always be used to insure proper
operation.
The input to the Module is either a switch or
sensor wire closure to battery negative or positive. The
following table outlines the status code displayed for each
input, when that point is closed to battery negative or
positive, as indicated.
TMM7A
Pump
Card
Control
Status
Terminal
Terminal
Code
Connect To
TB1
P16
90 *
Neg
TB3
P11
91
Neg
TB4
P15
92
Neg
TB5
P3
93 *
Pos
TB6
P4
93 *
Pos
TB8
P5
94
Pos
TB10
P6
94
Pos
TB11
P8
95
Pos
TB12
P9
95
Pos
* Status codes 90 and 93 can also be programmed with the
Handset to reduce the speed of the truck from 100 to 0
percent-on-time.
IMPORTANT NOTE: Status Codes 93, 94 and 95 are only
checked when a neutral signal is present (i.e., open
start switch or open F/R switch). The status code is
displayed and the speed limit enabled when the control
is returned to the run mode. Do not use status code 93
speed limit for applications requiring immediate speed
limit on switch closure.
Typical wiring diagrams and outline drawings for the
TMM7A accessory card and SR family of Pump TMM
functions are shown in Sections 5.4 and 5.5.
Section 5.3 Installation
WARNING: Before any adjustments, servicing or act
requiring physical contact with working components,
jack drive wheels off the floor, disconnect the battery
and discharge the capacitors in the traction and pump
controls, as explained in Section 4.4.
The TMM7A accessory card should be mounted to a flat
surface (in any plane) in an area protected from water, oil
and battery acid. Mounting dimensions are shown in
Section 5.5. Two (0.187 inch, 4.75mm) mounting holes are
provided.
Section 5.4 Connection Diagrams
Section 5.4.1 TMM7A Card Connections
1
3
4
5
2
7
9
6
8
10
11
12
13
14
15
BATTERY
NEGATIVE
3
4
5
6
8
11
10
12
1
4
19
20
9
Traction PL2
BATTERY
POSITIVE
TMM7A CARD CONNECTIONS
9
1
A1-1
A1-2
A2-1
A3-1
A2-2
A3-2
Section 5.4.2 Typical Brush Wear Sensor Connections
1
3
4
5
2
7
9
6
8
10
11
12
13
14
15
BRUSH WEAR SENSOR CONNECTIONS (TYPICAL)
ARM
1
2
1
TRACTION
PUMP
PWR STEER
ARM
2
2
1
ARM
3
2
1
Section 5.4.3 TMM Pump Control Connections
