1227-1237.pdf

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PERMANENT MAGNET
MOTOR SPEED CONTROLLERS
MODELS 1227/1237
Features
•
Full bridge power MOSFET design provides infinitely variable
forward, reverse, drive and brake control; silent high
frequency and high efficiency operation.
•
Programmable through the Curtis Model 1311 or Model
1314 handheld programmer, an optional universal unit used
for programming, testing and diagnostics.
•
Complete diagnostics also available through the status LED.
•
Fully compliant with all applicable international standards
and TÜV requirements.
•
Available for wig-wag (center off) and single ended (speed
pot and direction switch) throttles for both standard full stroke
and restricted range 5kΩ potentiometers. Also accepts 0–5V
throttle signals.
•
Throttle calibration mode aids the mechanical centering of the
throttle using the 1311 Programmer to enter the mode. The
horn will sound and the status LED will be off whenever the
throttle is outside the neutral band.
•
MultiMode® input selects between two different operating
modes. MultiMode® allows changes in speed, accel, decel,
current limit, and IR compensation. This allows optimization
of vehicle characteristics in each mode, for example
indoor/outdoor.
•
Speed limit input provides additional variable speed limiting,
in both mode ranges, with an external pot.
DesCrIPtION
Curtis PMC Models 1227/1237 are advanced, programmable
microprocessor based motor speed controllers which offer
smooth, silent, cost-effective control of motor speed and torque.
Four quadrant, full bridge power output stages provide for solid
state motor reversing and full regenerative braking power. Model
1227 provides extensive standard features. Model 1237 provides
additional features for special industrial applications.
•
Linear acceleration and deceleration with softened response
for smooth operation.
•
Current limited in both driving and regenerative braking.
•
Load compensation stabilizes speed on ramps and over
obstacles. Compensates for battery voltage, voltage drops,
and motor resistance.
•
High pedal disable (HPD) function monitors status of the
throttle during turn on and prevents operation until the throttle
has been returned to neutral.
•
Power off decel provides a controlled deceleration if the key
switch is turned off while driving.
•
Comprehensive fault detect function monitors main contactor,
output stage, throttle demand vs. output, etc.
•
Throttle fault circuitry shuts off controller if throttle signal goes
out of range for any reason.
•
Missing brake detector forces neutral in the event of an open
brake circuit (programmable).
aPPLICatION
Curtis PMC Models 1227/1237 are designed for large
permanent magnet motors, such as those used by large
mobility aids, scrubbers, personnel carriers, small golf cars,
small walkies etc.
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MODELS 1227/1237
Features continued
•
Anti-rollback/roll forward circuitry sets brake delay according
to speed and direction for improved braking response and
minimized rollback on hills, etc.
•
Over-current protected brake driver protects the controller from
shorts in the brake or its wiring. This low side output driver
may also be programmed for side broom or brush contactor,
hour meter, BDI enable, etc.
•
Brake PWM allows the brake driver to be programmed to a
reduced holding voltage.
•
Reverse output drives a piezo beeper (customer supplied)
in reverse.
•
“Push Too Fast” feature allows motor to coast with controller
off and brake released. Pushing too fast automatically and
safely shorts the motor to limit maximum coasting speed.
•
Push input electrically releases brake for key-on pushing
(requires that the vehicle be stopped first).
•
Inhibit input disables the controller and puts the vehicle in a
safe state during charging, etc.
•
Power saver deactivates the main relay after 25 seconds and
entire controller after 25 minutes of non-operation.
•
Under voltage cutback function protects against low
battery voltage.
•
Thermally protected and compensated for stable output and
over-temperature protection.
•
Reverse polarity protected (battery input).
Model 1237 Only
•
SRO input sequencing options.
•
Emergency reverse (belly button) input causes immediate reversal.
•
Programmable high side driver output for brake light, belly button
check, BDI enable, hourmeter, side broom contactor, etc.
MODeL CHart
Curtis PMC
Models
1227-21XX
1227-24XX
1227-27XX
1227-34XX
1227-41XX
1237-24XX
1237-34XX
1237-41XX
Nominal
Battery
Voltage (V)
24
24
24
36
48
24
36
48
Current
Limit
(Amps)
150
200
250
160
100
200
160
100
*1 Minute
Rating
(Amps)
150
200
250
160
100
200
160
100
1 Hour
Rating
(Amps)
60
70
100
60
40
70
60
40
Typ. Voltage
Drop @ 20A
(V)
0.16
0.08
0.04
0.08
0.15
0.08
0.08
0.15
Under Voltage
Cutback
(V)
16
16
16
21
27
16
21
27
* Actual value of 1-minute rating depends on MOSFET heating.
tÜV COMPLIaNCe
This Curtis product complies with the regulations of TÜV, the German service company which tests products and sets standards for product
safety and quality. EMC compliance depends upon the installation and is the responsibility of the equipment manufacturer. Shielding
may or may not be needed. When installed with the recommended shielding, the controller itself will meet TÜV EMC requirements. The
deceleration adjustment must be set to meet all applicable TÜV braking distance requirements
MODELS 1227/1237
DIMeNsIONs mm (in)
165 (6.50)
4 TERMINALS:
8.4 (.33) DI A HOLE THRU
21.0 (.83) X 16.0 (.63) X 1.5 (.06)
THK
28.0 (1.10)
61.0 (2.40)
STATUS
66.0 (2.60)
65.0 (2.56)
4.8 (.19)
122 (4.80 )
6.4 (.25)
152.4 (6.00)
6.73 (0.265) DI A
TYP 3 PLCS
PROGRAMMER CONNECTOR
tYPICaL WIrING DIaGraM
HIGH
SIDE
DRIVER
CONNECTOR PINOUT
LOCK DETENT
POWER SW/
STATUS LED
MULTIMODE
SWITCH
DIR.
SWITCH FWD
KSI
BB
HORN
KEYSWITCH
BRAKE
MULTI
KSI POWER REVERSE MODE
MAIN
HORN
16
8
9
1
H
PIEZO
BUZZER
MAIN
INHIBIT
BRAKE
WIPER
SPEED
LIMIT POT LO
POT HI
PUSH
CONTROL
FUSE
PROGRAMMER
16-PIN MOLEX MINI-FIT JR. CONNECTOR,
USING TYPE 5556 TERMINALS
PART NUMBER 39-01-2160 OR 39-01-2165
MATING CONNECTORS
M-
B-
A2
B+
POWER
FUSE
+
MAIN
INHIBIT
THROTTLE 5k Ω
SPEED
LIMIT
100k Ω
BATTERY
M
W a r r a N t Y
Two year limited warranty from time of delivery.
is a trademark of Curtis Instruments, Inc.
Specifications subject to change without notice
©2011 Curtis Instruments, Inc.
50019 REV G 5/11

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