Danfoss 2-Motor-Transmission System Data sheet
H1 motor 1
H1 motor 2
Shift valve
CAN-Bus
Forward
Reverse
Diesel engine
Two Motor
Transmission
Gearbox
Engine ECU
Safety controller
PC AC 2MT
H1 pump
MBS 1250
F/N/R
Inch pedal
Drive pedal
Data Sheet
2-Motor-Transmission System
with automotive control PC-AC 2MT
The 2-motor-transmission system is an propel system
solution which combines both proven hardware like
PLUS+1® safety controller and H1 hydraulic pumps
and motors with reliable software developed
according to current safety standards.
The H1 NFPE pump (load dependent) and the two
H1B motors are controlled by a Danfoss safety
controller. The gearbox control comes along with
error handling and shift monitoring functionality.
With the pre-installed application software and easily
changeable control parameters, it is possible to tailor
the vehicle‘s driving behavior to the individual
requirements of the customer.
Target applications
Wheel loader, Telehandler, Dumper
•
90 – 150 kW
•
Zero to final vehicle speed without interruption
Features
Basic functions
•
Four system modes, selectable by the
driver for different drive behaviour
•
Independent pump/motor profiling and
ramping for each system mode
•
Independent motor profiles in one
motor and two motor operation
•
Electric drive pedal
•
Electric inching
•
Load dependent pump displacement
control (automotive)
•
Proportional hydraulic motor
displacement control by flow (FCMD)
Protection and safety functions
•
Safety controlled vehicle start
protection
•
Operator presence detection
•
Hydraulic system overheat and low
temperature protection
•
Hydraulic motor overspeed protection
•
Safety functions according EN1459,
ISO20474, ISO 25119 and ISO 13849 up
to performance level d
Engine control and protection
•
CAN J1939 engine interface
•
Engine speed control via drive pedal
with safety controlled monitoring
function
•
Engine over speed and cold start
protection
Performance functions
•
ECO fuel saving mode
•
Vehicle speed limitation
•
Digital outputs for:
dynamic brake light
‒
automatic park brake
‒
reverse buzzer
‒
vehicle speed controlled output
‒
functions
•
Advanced CAN J1939 interface
Gearbox control and protection
•
Approved by gearbox manufacturer
•
Clutch control
•
Slip detection
•
Fault manager
©
Danfoss | February 2019 AI288750482674en-000102 | 1
System Overview of Danfoss Components
H1B Motor 1
H1B
Motor 2
Shift valve
CAN-Bus
Forward
Reverse
Diesel Engine
Two Motor
Transmission
Gearbox
Engine ECU
Safety
Controller
H1 Pump
MBS 1250
F/N/R Inch pedal Drive pedal
H1P Pump with load dependent NFPE
control
Electronic pressure limitation by
software (without hydraulic pressure limiter
valve) Optional: Control Cut Off (CCO), Swash
angle sensor
Technical Information BC00000057.
H1 Bent Axis Motor 1 (always engaged)
Electric proportional control (L1/L2 control)
De-energized max. displacement Electronic
pressure limitation by software
(without hydraulic PCOR)
Technical Information BC00000043.
H1 Bent Axis Motor 2 (can be disconnected)
Electric proportional control (M1/M2 control)
De-energized min. displacement
Electronic pressure limitation by software
(without hydraulic PCOR)
Technical Information BC00000043.
Controller Specifications
Dual Processore Primary Flash: 1 MB; RAM: 128 kB
Secondary Flash: 512 kB; RAM: 64 kB
Rated supply voltage 12 V system 9-16 V
Rated supply voltage 24 V system 18-36 V
Digital and PWM outputs 3000 mA
Sensor supply (internal) 5 V / 500 mA
Ambient temperature -40 to 85°C
IP rating with attached connectors IP69k
EMC immunity 150 V/m
Vibration and shock tested IEC60068
Input (24 user defined inputs)
Input Function
7 x digital FNR (direction selection), temperature switch
gearbox, park brake switch, park brake feedback,
clutch pressure feedback, pin not used
10 x analog Inch pedal, drive pedal, hydrostatic oil temperature,
operator presence, engine speed setpoint, pressure
sensors, system mode switches
4 x frequency Hydro-motor rpm
3 x frequency For customized function (option dependent)
Output (14 user defined outputs)
Output Function
4 x PWM Pump and hydro-motor displacement control
2 x PWM For customized function (option dependent)
8 x digital Dynamic brake light, park brake, reverse buzzer,
retarder control (optional), status LED, clutch valve,
low side switches pump and motor
Safety Controller PC AC 2MT
Technical Information BC00000205
Pressure sensors MBS 1250
Data sheet AI00000053
Comprehensive technical literature is online at www.danfoss.com
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
2 | © Danfoss | February 2019
AI288750482674en-000102
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