Danfoss TACA Series 51-1 Motor Pressured Compensated Controls TA Instruction Manual
- May 15, 2024
- Danfoss
Table of Contents
Danfoss TACA Series 51-1 Motor Pressured Compensated Controls TA
Specifications
- Model: S51-1 Motor Pressured Compensated Controls TA
- Nomenclature: S51-1 model code 51 R G L F M N JS T W Y PK VZ X M TA
- Description: Pressure compensated control
Product Overview
The S51-1 Motor Pressured Compensated Controls TA is designed to regulate
displacement automatically between minimum and maximum levels in response to
system pressure. The pressure ramp ensures optimal power utilization across
the motor’s displacement range.
Theory of Operation
- The displacement is regulated automatically between minimum and maximum levels based on system pressure. The pressure ramp from regulator start pressure to maximum displacement is controlled to ensure efficient power utilization.
- The pressure compensator configuration includes a shuttle valve to prevent rapid or uncontrolled deceleration during slowing down. It requires a 2-line external signal for operation.
Electrical Installation
The product’s electrical installation involves understanding pin compatibility and pressure compensator logic. Ensure to follow the latest version of technical literature for proper installation.
Pin Compatibility
The product utilizes specific pin configurations for various control options. Refer to the nomenclature on the motor’s nametag to determine if the motor is equipped with the appropriate options.
Pressure Compensator Logic
The pressure compensator logic includes features like hydraulic brake pressure defeat and a shuttle valve to prevent uncontrolled deceleration. Make sure to control the shuttle valve with a 2-line external signal for proper operation.
FAQ
-
Q: How do I determine if my motor has the Pressure Compensated Control?
A: Check the nomenclature on the motor’s nametag. The combination of M and N modules defines the motor control’s functionality. -
Q: What is the purpose of the shuttle valve in the pressure compensator configuration?
A: The shuttle valve prevents rapid or uncontrolled deceleration when the motor is running in pump mode, ensuring safe operation during vehicle/machine slowdown.
Revision history
| Date | Changed | Rev |
|---|---|---|
| August 2015 | Converted to Danfoss layout | BA |
| April 2007 | First edition | AA |
Literature references
S51-1 Motor Pressured Compensated Controls TA literature references
| Literature title | Description | Literature number |
|---|
S51 and 51-1 Bent Axis Variable Displacement Motors Technical
Information| Complete product electrical and mechanical specifications|
520L0440
On/Off Functions Function Block User Manual| Compliant function
block set-up information| 11022918
Latest version of technical literature
Danfoss product literature is online at: http://powersolutions.danfoss.com/literature/
Product Overview
Product image
Nomenclature
S51-1 model code
M and N options
| M | Description | N | Description |
|---|---|---|---|
| TA | Pressure compensated control | D1 | Electric brake pressure defeat, 12 Vdc, |
DIN Connector
| | D2| Electric brake pressure defeat, 24 Vdc, DIN Connector
| | D7| Electric brake pressure defeat, 12 Vdc, AMP Connector
| | CA| With hydraulic brake pressure defeat
| | C2| Without brake pressure defeat
Only certain control options for the S51-1 motor utilize the Pressure Compensated Control. The combination of the M and N modules define the motor control’s functionality. Please refer to the motor’s nomenclature to determine if the motor is equipped with the proper options. The nomenclature can be found on the motor’s nametag.
Theory of operation
TA
Displacement is regulated automatically between minimum displacement and
maximum displacement in response to system pressure.
- Regulator start = minimum displacement
- Regulator end = maximum displacement
- Regulator start pressure is adjustable from 110 to 370 bar [1600 to 5370 psi].
Pressure ramp from regulator start pressure (with motor at minimum displacement) until maximum displacement is reached is less than 10 bar [145 psi]. This ensures optimal power utilization throughout the entire displacement range of the motor.
TACA
- Pressure compensator configuration: TACA with hydraulic brake pressure defeat.
- A shuttle valve, ahead of the pressure compensator, prevents operation in the deceleration direction (when the motor is running in pump mode). This is designed to prevent rapid or uncontrolled deceleration while the vehicle/machine is slowing down. The shuttle valve must be controlled by a 2-line external signal.
- Pressure compensator override with brake pressure defeat is mainly used in systems with pumps having electric or hydraulic proportional controls or automotive controls.
TAD1, TAD2, TAD7
Pressure compensator configuration: TAD1, TAD2, and TAD7 with electric brake
pressure defeat. A solenoid-switched valve, ahead of the pressure compensator,
prevents operation in the deceleration direction (when motor is running in
pump mode). This is designed to prevent rapid or uncontrolled deceleration
while the vehicle/machine is slowing down. The solenoid valve must be
controlled by an external electric signal, based on direction of motor
rotation.
Control operation TA
Warning
Unintended vehicle or machine movement hazard. The loss of hydrostatic drive
line power, in any mode of operation (forward, neutral, or reverse) may cause
the system to lose hydrostatic braking capacity. You must provide a braking
system, redundant to the hydrostatic transmission, sufficient to stop and hold
the vehicle or machine in the event of hydrostatic drive power loss
Hydraulic schematics
Circuit diagram–motor with pressure compensator control TA**
Ports:
- A, B = Main pressure lines
- L1, L2 = Drain lines
- M3, M4 = Servo pressure
- XA, XB = Control pressure port brake pressure defeat (BPD)
- T3 = Orifice
- N = Speed sensor
Electrical specifications
Electric brake pressure defeats solenoid
| N-option | D1, D7 | D2 |
|---|---|---|
| Voltage | 12 Vdc | 24 Vdc |
| Rated power | 34 W | 34 W |
Pinout
DIN 43650 connector
Pin location
Pinout
| Pin | Function |
|---|---|
| 1 | PWM signal |
| 2 | Ground |
Pinout (alternative)
| Pin | Function |
|---|---|
| 1 | Ground |
| 2 | PWM signal |
AMP Junior Power Timer connector
Pin location
Pinout
| Pin | Function |
|---|---|
| 1 | PWM signal |
| 2 | Ground |
Pinout (alternative)
| Pin | Function |
|---|---|
| 1 | Ground |
| 2 | PWM signal |
Pin compatibility
PLUS+1® module pin type
| Pin | Function |
|---|---|
| 1,2 | DOUT |
| 1,2 | DOUT/PVG Power |
| 1,2 | PWMOUT/DOUT/PVG Power supply |
| 1,2 | PWMOUT/DOUT/PVGOUT |
| 1,2 | Power ground – |
Pressure compensator logic
Hydraulic brake pressure defeat
Motor rotation| High pressure port| **Control pressure on port *|
PCOR function**
---|---|---|---
CW| A| XA| yes
CW| A| XB| no
CCW| B| XA| no
CCW| B| XB| yes
- Differencial control pressure between port XA/XB:
- Δpmin = 0.5 bar [7 psi]
- Δpmax = 50 bar [725 psi]
Electric brake pressure defeat
Motor rotation| High pressure port| Solenoid| PCOR
function
---|---|---|---
CW| A| energized| yes
CW| A| non energized| no
CCW| B| energized| no
CCW| B| non energized| yes
Mating connector
DIN 43650 connector parts list
| Description | Quantity | Ordering Number |
|---|---|---|
| DIN 43650 connector | 1 | Hirschmann 932 106-100 |
| Mating connector kit | 1 | Danfoss K09129 |
AMP connector parts list
| Description | Quantity | Ordering number |
|---|---|---|
| Two pin connector | 1 | Tyco Electronics 282189-1 |
| Contacts | 2 | Tyco Electronics 929940-1 |
| Seal plugs | 2 | Tyco Electronics 828904-1 |
| Mating connector kit | 1 | Danfoss K19815 |
Products we offer:
- Bent Axis Motors
- Closed Circuit Axial Piston Pumps and Motors
- Displays
- Electrohydraulic Power Steering
- Electrohydraulic
- Hydraulic Power Steering
- Integrated Systems
- Joysticks and Control Handles
- Microcontrollers and Software
- Open Circuit Axial Piston Pumps
- Orbital Motors
- PLUS+1® GUIDE
- Proportional Valves
- Sensors
- Steering
- Transit Mixer Drives
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11024993 Rev BA August 2015 www.danfoss.com
References
- Inverter, Solar Inverter, Home Power Inverter | inverter.com
- Danfoss Power Solutions – Explore our power solutions | Danfoss
- Danfoss Power Solutions – Explore our power solutions | Danfoss
- Danfoss Power Solutions – Explore our power solutions | Danfoss
- Daikin Sauer Danfoss - Home
- Engineering Tomorrow | Danfoss
- Hydro-Gear Drivetrain Solutions | Home
- Danfoss Power Solutions – Explore our power solutions | Danfoss
- Danfoss Power Solutions – Explore our power solutions | Danfoss