Curtis MultiMode 1207B User manual

Manual
Model 1207B
MultiMode™ Electronic Motor Controller
Read Instructions Carefully!
Specifications are subject to change without notice.
© 2012 Curtis Instruments, Inc. ® Curtis is a registered trademark of Curtis Instruments, Inc.
© The design and appearance of the products depicted herein are the copyright of Curtis Instruments, Inc. 53118 Rev A 6/12
Curtis Instruments, Inc.
200 Kisco Avenue
Mt. Kisco, NY 10549
www.curtisinstruments.com

Curtis 1207B Manual iii
CONTENTS
1. OVERVIEW ..............................................................................1
2. INSTALLATION AND WIRING .............................................3
Mounting .............................................................................3
Connections: Low Current ..................................................4
Connections: High Current .................................................5
Wiring: Standard Configuration (Series Motor) ...................6
Wiring: Compound Motor Configuration ...........................8
Wiring: Throttle ................................................................10
5kΩ–0 throttle (“Type 1”) ...........................................10
0–5V, 3-wire potentiometer, and
electronic throttles (“Type 2”) .................................11
0–5kΩ throttle (“Type 3”) ...........................................13
Wiring: Emergency Reverse Check ....................................13
Switches and Other Hardware ...........................................14
Keyswitch ....................................................................14
Main contactor ............................................................14
Forward/reverse contactors ..........................................14
F/R and emergency reverse switches ............................14
Circuitry protection devices .........................................14
Installation Checkout .........................................................15
3. ADJUSTMENT OF PARAMETERS ......................................17
Changing Parameter Values ................................................17
Cloning Controllers ...........................................................17
4. MAINTENANCE ...................................................................18
Cleaning ............................................................................18
Fault History ......................................................................18
Testing the Fault Detection Circuitry .................................19
5. DIAGNOSTICS AND TROUBLESHOOTING ....................20
LED Diagnostics ................................................................20
Programmer Diagnostics ....................................................21
6. HANDHELD PROGRAMMER .............................................23
Programmer Operation .....................................................24
Progammer Menus .............................................................26
Program Menu ............................................................26
Monitor Menu ............................................................27
Fault Menu ..................................................................27
APPENDIX A Glossary of Features and Functions
APPENDIX B Specifications
CONTENTS

iv Curtis 1207B Manual
FIGURES
fig. 1: Curtis 1207B motor controller
and 1311 handheld programmer ................................ 1
fig. 2: Mounting dimensions, Curtis 1207B controller ........3
fig. 3: Standard wiring diagram (series motors) .................... 6
fig. 4: Compound motor wiring diagram .............................8
fig. 5: Wiring for 5kΩ–0 throttle ......................................10
fig. 6: Wiring for 20kΩ potentiometer
used as a wigwag-style throttle ................................10
fig. 7: Wiring for 0–5V throttle ........................................11
fig. 8: Wiring for 3-wire pot throttle ..................................12
fig. 9: Wiring for Curtis ET-XXX electronic throttle .........12
fig. 10: Wiring for 0–5kΩ throttle ......................................13
fig. 11: Alternative wiring for emergency reverse check .......13
fig. A-1: Ramp shape, with max speed = 100%
and creep speed = 0% ........................................... A-7
fig. A-2: Ramp shape, with max speed = 100%
and creep speed = 10% .......................................... A-7
fig. A-3: Ramp shape, with max speed = 60%
and creep speed = 10% .......................................... A-8
TABLES
table 1: LED codes .............................................................. 20
table 2: Troubleshooting chart ............................................22
FIGURES / TABLES

Curtis 1207B Manual 1
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1
1 — OVERVIEW
OVERVIEW
The Curtis 1207B programmable motor speed controller provides efficient,
cost-effective, and simple-to-install control for a variety of small electric ve-
hicles. Typical applications include walkie fork/pallet trucks, mini personnel
carriers, and sweepers. The microprocessor-based logic section combined with
a proven MOSFET power section gives the 1207B controller high power and
advanced features in a simple, compact package. The optional programmers
(Curtis 1311 and 1314) enable the user to set parameters, conduct tests, and
obtain diagnostic information quickly and easily.
Fig. 1 Curtis 1207B
electronic motor
controller and 1311
handheld programmer.
☞
More Features
Like all Curtis motor controllers, the 1207B models offer superior operator
control of the vehicle’s motor drive speed. Features include:
✓ Power MOSFET design, providing
• infinitely variable drive and plug brake control
• silent high-frequency operation
• high efficiency (for reduced motor and battery losses)
✓ Compact size
✓ Overvoltage and undervoltage protection
✓ Thermal protection and compensation circuitry provides
undertemperature cutback, constant current limit, and linear rollback
in overtemperature—thus preventing sudden power loss regardless of
thermal conditions
✓ Curtis 1311 handheld programmer (optional) provides a full set
of parameter and function settings, as does the Curtis 1314 PC
Programming Station (optional)
✓ Diagnostic and test information for the controller—and other system
components—readily available both on-board and through the
programmer

2 Curtis 1207B Manual
✓ Circuitry and software detects faults in the throttle circuit, MOSFET
drive circuit, MOSFET transistors, contactor drivers, and contactors—
ensuring that the controller meets EEC fault detect requirements
✓ Input sequencing options include neutral start and static return to off
(SRO)
✓ Microprocessor-controlled contactor sequencing provides true arcless
contactor switching
✓ Smooth, controlled plug braking—with either variable (throttle-
dependent) or fixed plug current limit
✓ Neutral braking option provides automatic plug braking in neutral
✓ MultiMode™ input selects between two different operating modes,
thus allowing optimization of vehicle characteristics for different driving
conditions
✓ Emergency reverse (belly-button switch) with a single input
✓ Ramp-start feature provides full power for starting on ramps
✓ Simple contactor and switch wiring, with coil drivers monitored for
faults—thus ensuring fail-safe operation
✓ Flexible throttle circuitry accommodates a variety of throttle types
✓ Programmable “ramp shape” (static throttle map) provides flexibility in
selecting throttle response feel
✓ Connections made by solid copper power busses with a polarized Molex
connector for control signals
✓ Solid, well-protected construction—with an aluminum mounting plate
and injection-molded cover.
Familiarity with your Curtis controller will help you install and operate it prop-
erly. We encourage you to read this manual carefully. If you have questions,
please contact the Curtis office nearest you.
1 — OVERVIEW

Curtis 1207B Manual 3
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INSTALLATION AND WIRING
MOUNTING
The 1207B controller can be oriented in any position, but the location should
be carefully chosen to keep the controller as clean and dry as possible. If a
clean mounting location cannot be found, a cover must be used to shield
the controller from water and contaminants.
To ensure full rated output power, the controller should be fastened to
a clean, flat metal surface with three screws. The case outline and mounting
hole dimensions are shown in Figure 2.
Although not usually necessary, a thermal joint compound can be used
to improve heat conduction from the case to the mounting surface.
2 — INSTALLATION & WIRING
2
Fig. 2 Mounting
dimensions,
Curtis 1207B controller.
66 (2.6)
28 (1.1)
122
(4.80)
152 (6.00) 6.3 (0.25)
22 (0.85)
66
(2.60)
4.8 (0.19)
21 × 16 × 1.5
(0.83
× 0.63 × 0.06);
8.4 (0.33) dia. hole thru
6.7 (0.265) dia.,
3 plcs
Dimensions in millimeters and (inches)
Status LED
C
L
165 (6.50)
127 (5.00)

4 Curtis 1207B Manual
2 — INSTALLATION & WIRING
CONNECTIONS: Low Current
An integrated 16-pin low power connector molded into the front of the con-
troller provides the low power logic control connections (see pin list below).
The mating connector is Molex Mini-Fit Jr., part number (5557) 39-01-2165.
Contact Molex regarding compatible pins for various wire sizes.
Pin 1 shunt field driver output; n/c for series motors
Pin 2 reverse contactor driver output
Pin 3 forward contactor driver output
Pin 4 main contactor driver output
Pin 5 throttle: 3-wire pot high
Pin 6 throttle: 3-wire pot wiper or 0–5V
Pin 7 throttle: pot low
Pin 8 throttle: 2-wire 5kΩ–0 or 0–5kΩ input
Pin 9 n/c
Pin 10 emergency reverse (BB) check output [optional]
Pin 11 reverse input
Pin 12 forward input
Pin 13 emergency reverse input
Pin 14 mode selection input
Pin 15 brake input
Pin 16 keyswitch input (KSI)
16 15 14 13 12 11 10 9
87654321

Curtis 1207B Manual 5
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CONNECTIONS: High Current
Four tin-plated copper bus bars are provided for the high current connections
to the battery and motor:
M- output to motor armature
B- negative connection to battery
B+ positive connection to battery/field
A2 plug diode to motor armature
Cables are fastened to the bus bars by M8 (5⁄16") bolts.
When tightening the bolts, two opposing wrenches should
be used to prevent bending the bus bars and putting undue
strain on the internal connections.
Programmer Connector
A 4-pin Molex connector is provided for the 1311 handheld programmer or
the 1314 PC Programming Station. A mating cable is supplied with the 1311
handheld programmer.
Status LED
The Status LED, located on top of the controller, displays flashing codes to
indicate controller status; the codes are listed in Section 5.
2 — INSTALLATION & WIRING
M- A2
B+B-

6 Curtis 1207B Manual
WIRING: Standard Configuration (Series Motor)
The basic wiring for series motors with field reversing is shown in Figure 3.
Fig. 3 Standard
wiring diagram
(series motor),
Curtis 1207B controller.
The configuration shown in Figure 3 is a typical arrangement for a series mo-
tor. Curtis controllers are designed for use in a wide range of applications, and
accordingly can be installed in a variety of ways to best meet customer needs.
Note: The emergency reverse check feature (wiring shown by dashed line) is
a factory option.
2 — INSTALLATION & WIRING
MULTI
MODE
EMERGENCY
REVERSE
A2
A1
REVERSE
CONTACTOR
PRECHARGE RESISTOR
(250 Ω, 5 W)
BRAKE FORWARD
CONTACTORS
MAINREVERSE
SWITCHES
CONTROL
FUSE
M- A2
B+B-
FORWARD
CONTACTOR
POWER
FUSE
KEYSWITCH
POLARITY
PROTECTION
DIODE
S1
S2
MAIN
CONTACTOR
B-
B+
FORWARD REVERSE
THROTTLE
5kΩ–0 (TYPICAL)
A

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Power Wiring for Series Motor
In every wiring configuration, it is imperative that the field be wired between
the controller’s B+ and A2 terminals and that the armature be wired between
the M- and A2 terminals. The internal plug diode used in the 1207B is con-
nected between M- and A2. Therefore, the armature and field positions cannot
be interchanged. Reversing contactors can be used to switch either the armature
or the field.
Control Wiring for Series Motor
Wiring for the input switches and contactors is shown in Figure 3 (see detail
below). The main contactor, if one is used, is normally connected directly to
the controller. Optionally, the main contactor can be switched directly by the
keyswitch or brake, leaving Pin 4 unconnected.
The throttle shown in Figure 3 is a 5kΩ–0 type. Various other throttles can
also be accommodated, and are discussed in the throttle wiring section.
2 — INSTALLATION & WIRING
16-pin detail (see Fig. 3):
BRAKE
MULTI
MODE
EMERGENCY
REVERSE
FORWARD
REVERSE
KEYSWITCH
EMERGENCY
REVERSE
CHECK
OUTPUT
MAIN
CONTACTOR
FORWARD
CONTACTOR
REVERSE
CONTACTOR
2-WIRE POT
(5 kΩ)
POT
LOW
87654321
16 15 14 13 12 11 10 9
16-pin detail (see Fig. 3):

8 Curtis 1207B Manual
WIRING: Compound Motor Configuration
A specially configured controller is available for compound motor applications.
In this controller, the MOSFET output driver is used to drive the shunt field.
The wiring for a compound wound motor with armature reversing is shown
in Figure 4.
Fig. 4 Compound
motor wiring diagram,
Curtis 1207B controller.
The configuration shown in Figure 4 requires the use of a compound wound
motor. Pure shunt motors cannot be used with 1207B controllers. Although
the configuration shown is typical, various other configurations are possible.
Note: The emergency reverse check feature (wiring shown by dashed line) is
a factory option.
2 — INSTALLATION & WIRING
MULTI
MODE
EMERGENCY
REVERSE
A2
A1
REVERSE
CONTACTOR
PRECHARGE RESISTOR
(250 Ω, 5 W)
BRAKE FWD
CONTACTORS
MAINREV
SWITCHES
CONTROL
FUSE
M- A2
B+B-
FORWARD
CONTACTOR
POWER
FUSE
KEYSWITCH
POLARITY
PROTECTION
DIODE
S1
S2
MAIN
CONTACTOR
B-
B+
FORWARD REVERSE SHUNT
THROTTLE
5kΩ–0 (TYPICAL)
A
B-

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Power Wiring for Compound Motor
The field must be wired between B+ and A2 and the armature between M- and
A2. The internal plug diode in the 1207B is connected between M- and A2;
therefore, the armature and field positions cannot be interchanged.
If the shunt is rated for under 2 amperes, it can be connected directly
to the controller as shown in Figure 4. If the shunt is rated for higher than
2 amperes, a contactor must be used to control the shunt field.
Control Wiring for Compound Motor
Control wiring for the compound motor application is like that for the standard
(series motor) wiring. The main contactor, if one is used, is normally connected
directly to B-.
The throttle shown in Figure 4 is a 5kΩ–0 type. Various other throttles can
also be accommodated, and are discussed in the throttle wiring section.
Polarity protection diodes and control fuses must be sized appropriately
to handle the increased current from the shunt field.
2 — INSTALLATION & WIRING
16-pin detail (see Fig. 4):
BRAKE
MULTI
MODE
EMERGENCY
REVERSE
FORWARD
REVERSE
KEYSWITCH
EMERGENCY
REVERSE
CHECK
OUTPUT
FORWARD
CONTACTOR
REVERSE
CONTACTOR
2-WIRE POT
(5 kΩ)
POT
LOW
87654321
16 15 14 13 12 11 10 9
SHUNT
16-pin detail (see Fig. 4):

10 Curtis 1207B Manual
WIRING: Throttle
Wiring for various throttles is described below. They are characterized as Type 1,
Type 2, and Type 3 throttles in the programming menu of the handheld pro-
grammer. Note: In the text, throttles are identified by their nominal range
and not by their actual active range.
If the throttle you are planning to use is not covered, please contact the
Curtis office nearest you.
5kΩ–0 Throttle (“Type 1”)
The 5kΩ–0 throttle (called a “Type 1” throttle in the programming menu of
the handheld programmer) is a 2-wire resistive throttle that connects between
the 5kΩ–0/0–5kΩ pin (Pin 8) and the Pot Low pin (Pin 7), as shown in Fig-
ure 5. It doesn’t matter which wire goes on which pin. Zero speed corresponds
to 5kΩ and full speed corresponds to 0Ω.
Fig. 5 Wiring for
5k Ω –0 throttle
(“Type 1”).
In addition to accommodating the basic 5kΩ–0 throttle, the Type 1
throttle is the easiest with which to implement a wigwag-style throttle. Using
a 20kΩ potentiometer wired as shown in Figure 6, the pot wiper can be set
such that the controller has 5kΩ between Pins 7 and 8 when the throttle is
in the neutral position (i.e., at the center of the pot). The throttle mechanism
can then be designed such that rotating it either forward or back decreases the
resistance between Pins 7 and 8, which increases the controller output. The
Fig. 6 Wiring for 20k Ω
potentiometer used as a
wigwag-style throttle
(“Type 1”).
2 — INSTALLATION & WIRING
87654321
FASTER
16 15 14 13 12 11 10 9
5kΩ POT
Pin 8
Pin 7
5kΩ–0
Pot Low
PIN KEY
87654321
FASTERFASTER
16 15 14 13 12 11 10 9
20kΩ POT
Pin 8
Pin 7
5kΩ–0
Pot Low
PIN KEY

Curtis 1207B Manual 11
29 JUNE 2012 DRAFT
(b) Ground-referenced
0–5V throttle
(a) 0–5V throttle sensor
Fig. 7 Wiring for 0–5V
throttle (“Type 2”).
throttle mechanism must provide signals to the controller’s forward and reverse
inputs independent of the throttle pot resistance. The controller will not sense
direction from the pot resistance.
0–5V, 3-Wire Potentiometer, and Electronic Throttles (“Type 2”)
With these throttles (“Type 2” in the programming menu), the controller looks
for a voltage signal at the pot wiper/0–5V input of the controller (Pin 6). Zero
speed corresponds to 0V and full speed corresponds to 5V. Pot Low is the cur-
rent return path for all Type 2 throttles.
0–5V Throttle
Two ways of wiring the 0–5V throttle are shown in Figure 7. If a throttle sen-
sor is used, the sensor’s ground return current must be less than 10 mA. If the
0–5V throttle input (Pin 6) exceeds 8 volts, the controller will shut down.
2 — INSTALLATION & WIRING
87654321
87654321
16 15 14 13 12 11 10 9
+
-
+
B-
16 15 14 13 12 11 10 9
4.7 kΩ
(Shunt impedance 150 k Ω to ground)
Pin 7
Pin 6
Pin 5
Pot Low
0–5V Input
Pot High
PIN KEY
Pin 7
Pin 6
Pot Low
0–5V Input
PIN KEY
SENSOR GROUND
SENSOR OUTPUT
0–5V
SENSOR

12 Curtis 1207B Manual
3-Wire Potentiometer (500 Ω –10k Ω ) Throttle
The 3-wire potentiometer is used in its voltage divider mode—with the voltage
source and return being provided by the 1207B controller. Pot High provides
a current-limited 5V source to the potentiometer, and Pot Low provides the
return path. Wiring is shown in Figure 8.
Fig. 8 Wiring for 3-wire
potentiometer throttle
(“Type 2”).
Fig. 9 Wiring for
Curtis ET-XXX electronic
throttle (“Type 2”).
Curtis ET-XXX Electronic Throttle
The Curtis ET-XXX provides throttle and forward/reverse inputs to the 1207B
controller. Wiring for the Curtis ET-XXX is shown in Figure 9.
2 — INSTALLATION & WIRING
87654321
16 15 14 13 12 11 10 9
OFFON
3-WIRE POT
Pin 7
Pin 6
Pin 5
Pot Low
0–5V Input
Pot High
PIN KEY
87654321
16 15 14 13 12 11 10 9
ET-XXX
B-
B+
B-
GREEN
ORANGE
BLACK
BLACK/WHITE
WHITE
WHT/BRN
Pin 16
Pin 12
Pin 11
Pin 6
KSI Input
Forward
Reverse
0–5V Input
PIN KEY
KEYSWITCH
WHT/
GRN

Curtis 1207B Manual 13
29 JUNE 2012 DRAFT
0–5kΩ Throttle (“Type 3”)
The 0–5kΩ throttle (“Type 3” in the programming menu) is a 2-wire resistive
throttle that connects between the 5kΩ–0/0–5kΩ pin (Pin 8) and the Pot Low
pin (Pin 7), as shown in Figure 10. It doesn’t matter which wire goes on which
pin. Zero speed corresponds to 0Ω and full speed corresponds to 5kΩ.
Fig. 11 Alternative
wiring for 1207B
emergency reverse check.
Fig. 10 Wiring for
0–5 Ω throttle (“Type 3”).
WIRING: Emergency Reverse Check
An optional wire connected directly to the emergency reverse (belly button)
switch provides for broken wire detection when that option is enabled at the
factory. The emergency reverse check output wire provides a dc bias to the
emergency reverse circuit to check for continuity. If there is no continuity in
the circuit, the controller shuts down and a fault code is indicated.
This feature must be enabled at Curtis. If the option is selected and the
check wire is not connected, the vehicle will not operate. If the option is not
selected and the check wire is connected, no harm will occur—but continuity
will not be checked.
The emergency reverse check output wire is connected to Pin 10, as shown
by the dashed lines in the two basic wiring diagrams (Figures 3 and 4).
Alternatively, a 9.1 kΩ resistor can be wired directly across the emer-
gency reverse switch to provide the dc bias, as shown by the dashed line in
Figure 11.
2 — INSTALLATION & WIRING
87654321
FASTER
16 15 14 13 12 11 10 9
5kΩ POT
Pin 8
Pin 7
5kΩ–0
Pot Low
PIN KEY
MULTI
MODE
EMERGENCY
REVERSE
For rest of wiring diagram, see Fig. 3 (series motors) or Fig. 4 (compound motors).
BRAKE FORWARD
CONTACTORS
MAIN
REVERSE
SWITCHES
FORWARD REVERSE
9.1 kΩ

14 Curtis 1207B Manual
SWITCHES AND OTHER HARDWARE
Keyswitch
The vehicle should have a master on/off switch to turn the system off when not
in use. The keyswitch provides logic power for the 1207B controller, coil cur-
rent for the contactors, and shunt current (in compound motor applications).
The keyswitch must be capable of carrying these currents.
Main Contactor
A main contactor allows the 1207B controller to be disconnected from the bat-
tery. A heavy-duty single-pole, single-throw (SPST) contactor with silver-alloy
contacts is recommended, such as an Albright SW80 or SW180.
After initial closing of the contacts, inrush currents flow as the controller’s
internal filter capacitors are charged. A 250Ω, 5W resistor (such as Curtis p/n
MP-2) can be used across the contactor to precharge the capacitors and reduce
the inrush current through the contacts.
In compound motor applications, the main contactor driver is used to
drive the shunt field. The main contactor—if one is used—is normally con-
nected directly to B- in this configuration.
Forward/Reverse Contactors
For forward/reverse, a paired single-pole, double-throw (2×SPDT) contactor
is recommended, such as an Albright DC88 or DC182. With 4-terminal split
field motors, two single-pole, single-throw (SPST) contactors are typically used.
The coil voltage should match the vehicle voltage. The maximum allowed coil
current is 1 ampere.
Forward/Reverse, Emergency Reverse, and Mode Switches
These input switches can be any type of single-pole, single-throw (SPST) switch
capable of switching the battery voltage at 10 mA.
Circuitry Protection Devices
For reverse polarity protection, a diode should be added to the control circuit.
It must be sized appropriately for the maximum contactor coil currents (and
shunt current, in compound motor applications). To protect the control wiring
from accidental shorts, a low current fuse (appropriate for the maximum cur-
rent draw) should be connected in series with the battery feed. These devices
are both shown in the wiring diagrams.
2 — INSTALLATION & WIRING

Curtis 1207B Manual 15
29 JUNE 2012 DRAFT
INSTALLATION CHECKOUT
Before operating the vehicle, carefully complete the following checkout proce-
dure. If you find a problem during the checkout, refer to the diagnostics and
troubleshooting section (Section 5) for further information.
The installation checkout can be conducted with or without the handheld
programmer. The checkout procedure is easier with a programmer. Otherwise,
observe the Status LED for codes.
Put the vehicle up on blocks to get the drive wheel(s) off
the ground before beginning these tests.
Turn the keyswitch off and make sure that the brake is
applied (brake switch open), the throttle is in neutral, and
the forward/reverse switches are open.
Do not stand, or allow anyone else to stand, directly in
front of or behind the vehicle during the tests.
1. If a programmer is available, connect it to the programmer connector.
2. Turn the keyswitch on. The programmer should “power up” with an
initial display, and the controller’s Status LED should begin steadily
blinking a single flash. If neither happens, check for continuity in the
keyswitch circuit and controller ground.
3. If you are using a programmer, put it into the fault mode by entering
the System Faults menu (Fault » System Faults). The display should
indicate “Currently no faults.”
Release the brake (close the brake switch). To do this on a walkie,
pull the tiller down to the operating position. The LED should continue
blinking a single flash and the programmer should continue to indicate
no faults. If there is a problem, the LED will flash a diagnostic code and
the programmer will display a diagnostic message. If you are conducting
the checkout without a programmer, look up the LED diagnostic code
in Section 5: Diagnostics and Troubleshooting.
When the problem has been corrected, it may be necessary to cycle
the brake in order to clear the fault code.
4. With the brake released, select a direction and operate the throttle. The
motor should begin to turn in the selected direction. If it does not, verify
the wiring to the forward/reverse switches, forward/reverse contactors,
and motor. The motor should run proportionally faster with increasing
throttle. If not, refer to Section 5.
☞
CAUTION
2 — INSTALLATION & WIRING

16 Curtis 1207B Manual
5. If you are using a programmer, put it into monitor mode by entering
the Monitor menu. Scroll down the Monitor menu to observe the status
of the forward, reverse, brake, emergency reverse, and mode switches.
Cycle each switch in turn, observing the programmer. Each input should
show the correct state on the programmer.
6. Specific material handling directives, such as prEN1175, require testing of
the controller’s fault detection circuitry. This can be done as follows:
a) Disconnect the battery and make sure the keyswitch is off.
b) Using an inline fuse holder fitted with a 10-amp fuse and alligator
clips, connect the controller’s M- and B- terminals.
c) Turn the keyswitch on, release the brake, and apply the throttle.
The motor should not operate, and the direction contactors should
not pull in.
d) Leave the keyswitch on and remove the inline fuse wire. The vehicle
status should continue to remain off.
e) Cycle the keyswitch off and on, release the brake, and apply the
throttle. The vehicle should now operate normally.
7. Take the vehicle off the blocks and drive it in a clear area. It should have
smooth acceleration and good top speed.
8. Test the plug braking of the vehicle. Verify that the plug braking option
is as desired (variable or fixed).
9. Verify that all options, such as high pedal disable (HPD), static return
to off (SRO), and anti-tiedown, are as desired.
10. Check to see whether the emergency reverse (belly button) feature is
working correctly. If you have the optional emergency reverse check wir-
ing, verify that the circuit is operational by momentarily disconnecting
one of the emergency reverse wires. The vehicle should be disabled and
a fault indicated.
2 — INSTALLATION & WIRING