1254C.pdf

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PUMP SYSTEM CONTROLLER
MODEL 1254C
FEATURES
CAN Bus Communication Port
•
This option allows control and access of all control and status
functions through a standard two wire connection. Man-up
vehicles can simplify wiring, improve reliability and reduce
cost. Complex vehicles can connect multiple modules and
share features and functions.
Smooth Control of Hydraulic Functions
•
Pulse-Width Modulation controlled pump motor provides
DESCRIPTION
Curtis Model 1254C Pump System Controller is specifically
engineered to the unique characteristics of hydraulic motor and
valve control. Includes an advanced MOSFET power section
and sophisticated microprocessor for high efficiency, silent
operation, flexibility and ruggedness.
smooth start-up and rampdown on each function. Precise
current and voltage control eliminates the bumps and jumps
associated with on/off contactor control for increased
efficiency and reduced contactor tip and motor brush wear.
•
Load Compensation automatically varies the applied motor
power in response to changes in weight and forces on the pump.
Provides better speed regulation empty verses loaded, when
picking up mast sections or while multiple functions are engaged.
•
A current regulated proportional valve driver provides
controlled, continuously variable speed lowering. An additional
solenoid driver is provided for load hold or flow control.
APPLICATION
The Curtis Model 1254C Pump System Controller is ideal for
material handling, industrial and man-up platform vehicles.
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MODEL 1254C
FEATURES continued
Flexible and Programmable
Safety Features
•
Up to 8 fixed speed and 3 variable speed inputs for
maximum application flexibility. Speed control signals can
be additive or prioritized in a myriad of combinations. An
additional programmable feature permits a simple interface
with a multi-function control handle.
•
Fully compatible with all Curtis handheld and PC
based programmers for testing, diagnostics and
parameter adjustments.
•
Meets or exceeds EEC fault detection requirements. Software
and hardware circuitry detect faults in the variable speed
controls and power section for safe operation.
•
Power On Self Test and continuous diagnostics ensure proper
operation. Dual watchdog circuits ensure software integrity.
•
Programmable minimum speed setting for maintaining
steering system pressure and pump lubrication.
•
Lift interrupt/inhibit input can be connected to a Curtis BDI
or other interlock function to disable the controller at low
battery or when the operator is not present.
MODEL CHART
Model No
1254C-44XX
1254C-45XX
1254C-46XX
1254C-47XX
1254C-54XX
1254C-55XX
1254C-56XX
1254C-64XX
1254C-65XX
1254C-66XX
Voltage Rating (V)
24-36
24-36
24-36
24-36
36-48
36-48
36-48
36-80
36-80
36-80
Current Rating
2 Minutes (Amps)
400
500
600
700
400
500
600
400
500
600
Current Rating
1 Hour (Amps)
160
180
200
200
150
170
190
140
160
190
MODEL 1254C
TYPICAL WIRING DIAGRAM
1254C PUMP SYSTEM CONTROLLER
J1-2
J1-3
J1-4
J1-7
J1-8
J1-9
J1-10
J1-16
J1-20
J1-21
J1 -
11
J1-22
J1-13
J1-23
J1-15
INTERLOCK + PWR
LIFT
LOWER
SPEED SELECT 1
SPEED SELECT 2
SPEED SELECT 3
SPEED SELECT 4
SPEED SELECT 5
SPEED SELECT 6
POT HIGH 1
VSC1*
POT HIGH 2
VSC2*
POT HIGH 3
VSC3*
B-
HOUR METER
Handheld
Programmer
J3-1
J3-2
J3-3
J3-4
RECEIVE DATA
GROUND
TRANSMIT DATA
+15v
(optional)
CAN Communication
J2-5
TERMINATE
J2-4
CAN-LOW
J2-1
J2-2
J2-3
* Variable Speed Control
J2-6
+15VDC
GROUND
CAN-HIGH
CAN-LOW
}TO CAN CONTROL BUS
FAULT 1
FAULT 2
J1-12
J1-5
J1-6
M-
A
B+
PUMP CONTACTOR
LOAD HOLD SOLENOID
PROPORTIONAL VALVE
J1-17
J1-18
J1-19
J1-1
KSI
Pump Contactor
J1-14
POT LOW
10 4.5
MODEL 1254C
D I M E N S I O N S mm
96 (3.79)
27 (1.05)
M8 THREAD
3 PLACES
.281 DIA.
4 PLACES
B-
40 (1.57)
B
CL
M-
B+
J1
A
J2
40 (1.57)
J3
C
D
A
159 (6.25)
B
178 (7.00)
C
210 (8.25)
D
229 (9.00)
1254
81 (3.18)
13 (.50)
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
©2010 Curtis Instruments, Inc.
50060 REV C 10/10

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