Danfoss | February 201711022667 | BC00000033en-US0601 | 3
Technical Information
MCHXXX
Overview
Description
Features
The MCHXXX Single Axis Control Handle provides remote electrical actuation of Danfoss pumps/motors,
and or other electrically-actuated pump strokers for open loop control systems. The MCHXXX can
function as a setpoint for analog or microprocessor-controlled systems for controlling position, speed,
pressure, horsepower or other dynamic parameters.
Shock and vibration resistant
•
Choice of three mounting styles, with or without watertight case
•
Rugged components designed for the construction environment
•
High-torque handle actuation gives sure feel
•
Simple to install
•
Mechanical options include center-lock, spring-return, friction drag, uni/bi-directionality and optional
•
wire harness with a variety of electrical connectors
Electrical characteristics customized to the application
A wide range of options to the basic control handle allow custom-tailoring to each application. The
following ordering specification chart is provided for assistance in determining model number. Other
options are possible, consult Danfoss with further questions.
CodeDescriptionDetail
1Base (surface) mount aluminum caseFour screws connect to the flanges on the bottom of the metal case.
2Top mount (drop in) with plastic case
3Top mount (drop in) without case
4Panel mount with plastic case
5Panel mount without caseFour screws connect to the top plate that holds the boot in place.
Two screws connect to an enlarged mounting plate.
Top mounting allows the entire handle to be removed from above the panel.
The case is made of black nylon plastic.
Two screws connect to an enlarged mounting plate.
Top mounting allows the entire handle to be removed from above the panel.
Four screws connect to the top plate that holds the boot in place.
The case is made of black nylon plastic.
ConnectorFactory assigned
Control knob option
CodeDescriptionDetail
1Non-locking
2Center lockThe non-locking handle has a standard ballThe center lock handle has a
3Non-locking, auxiliary push button switch
5Non-locking, no knobThe customer provides customized knob.
6Three position maintained rocker switch
*
8
9Three position momentary rocker switchThis is the same as option 6, but the switch returns to the center position when
*
Unique configuration, for details contact your Danfoss representative.
Special (no handle or knob)
The friction-held handle detents with a springloaded ball to indicate null, while
the spring-return handle has a spring preload indicating null.The non-locking
handle has a standard ball knob.
cylindrical knob and provides a positive center lock that unlatches when the
operator pulls up on the knob.
This knob is teardrop shaped, with an auxiliary momentary push-button switch on
top.
The switch is wired through the handle shaft to the body with three wires
(common, normally open, and normally closed).
The cylindrical knob has a boot covering the three-position switch in the knob.
The switch, wired through the handle, is used for auxiliary functions.
released.
Reference Dimensions.
Handle actuation option
CodeDescriptionDetail
ASpring return, bi-directionalThis handle uses a torsion spring to return to the mechanical center position and
BFriction held, bi-directionalThis handle has an adjustable drag, set with a clamp-type brake that holds the
has 30 degrees of handle throw on either side of center.
handle at the set position and has 30 degrees of handle throw on either side of
the center detent.
DSpecial (friction held, center detent only, no brake)
Electrical characteristics option
CodeDescriptionDetail
AProportional, no switches, 12 VDC
BProportional, center off switch, 12 VDC,This handle has a center-off switch that ensures zero output voltage within ±3
CProportional, center off switch, 24 VDCSame as option B except this handle runs on a supply voltage of 24 Volts.
DProportional, center off and auxiliary switch, 12 VDCSame as option B except this handle has a second switch that actuates at +2 or -2
EProportional, set-point potentiometer, 12 VDCSame as option B except this handle maintains the same polarity of signal in
FStep-plus-proportional, 12 VDC
GStep-plus-proportional, 24 VDCSame as option F, except this handle runs on a supply voltage of 24 Vdc.
HSwitchingThis handle is non-proportional. Moving the handle off null activates switches
JStep-plus-proportional, full auxiliary switching, 12
KProportional, unwired switchThe customer uses the unwired center switch to operate an auxiliary function,
*
L
MProportional, three switchesThe three switches are: a wired center switch; one unwired switch in forward; and
†
X
†
Y
†
Z
*
Option L, Electronic PWM auxiliary switching, 12 Vdc reached its end of life cycle in 2008 and is no longer available.
†
Unique configuration, for details contact your Danfoss representative.
VDC
Electronic PWM auxiliary switching, 12 Vdc
Special (no handle or knob)
Special
Special
This handle has 60 degrees of high-resolution of handle throw, rotating on only
one side of mechanical null, which is at full stroke.
It has no detent mechanism.
This handle’s output curve is fairly linear, with output voltage as a function of
handle stroke.
The supply voltage is 12 Volts, and there are no auxiliary function switches.
degrees of handle center position.
degrees.
forward or reverse.
This handle uses two switches to give the step-plus-proportional output current
on either side of null.
This overcomes deadbands in spool valves (see Specifications on page 8, StepPlus-Proportional-Control-Handle PWM option illustration).
Current beyond this step output is proportional through the rest of the handle
throw.
Full current output at 30 degrees handle stroke is maximum of 250 mA.
Step current is a maximum of 50% of full current output.
that power ON/OFF devices (for example, solenoid valves).
This handle uses the step switches for additional secondary functions.
Full current output at 30 degrees handle stroke is a maximum of 250 mA.
Step current is a maximum of 50% of full current output.
such as neutral start interlock.
This handle uses a printed circuit board that makes the step height and output
current fully adjustable, accommodating high current applications. It also has
pulse width modulation, that dithers the output to overcome hydraulic valve
stiction. Full current output at 30 degrees handle stroke is a maximum of 2 Amps
into a 5 Ohm load. Step current is a maximum 50% of full current output. Typical
dither frequencies (dependent on resistance of the load, specified in the suffix
number) are: 60 Hz for the HPI solenoid actuator, approximately 400 Hz for the
V7058 Hydrotransmission Valve and approximately 1000 Hz for the MCV101A/
MCV116A Pressure Control Pilot Valve.
CodeDescriptionDetail
1Terminal stripElectrical connections are made to a set of four internal or more screw terminals
2Pigtail 1524 mm [60 in] without connector
3Pigtail with unsealed Delphi connector
6Pigtail with sealed Delphi connector, 4 pin male and
7Pigtail sealed Delphi connectorThe wires from the case terminate in a sealed Delphi connector.
8Pigtail sealed DEUTSCH connectorThe wires from the case terminate in a sealed DEUTSCH connector.
female
Pigtail (or leadwire) is routed from the control handle to a Delphi environmental connector. Pigtail
minimum length is 381 mm [15 in].
For optional connectors, contact your Danfoss representative.
Suffix number
The factory generates these final three numbers. To create the suffix number, supply the following
information:
•
Supply voltage
•
Number of additional switches needed and actuation angle of each with respect to null
•
Full current output
•
Resistance of the driven load
•
Step current needed (if necessary)
depending on the specific model.
Four wires extend from the handle case.
Reference Potentiometer option on page 14 for lengths.
The wires from the case terminate in a Delphi environmental connector.
Reference Potentiometer option on page 14.
There are two separate connectors, each connects to a separate potentiometer.
For details regarding unique configurations, contact your Danfoss representative.
After being placed in a controlled atmosphere of 95% humidity at 38ºC [100ºF] for 10 days, the control handle performs normally.
Rain
After being showered from all directions by a high pressure hose, the control handle performs normally (applied to cased models only). This test fulfills
NEMA 4 specifications (IP 65 equivalent).
Vibration
Withstands a vibration test designed for mobile equipment controls consisting of two parts:
1. Cycling from 5 to 2000 Hz in each of the 3 axes.
2. Resonance dwell for one million cycles for each resonance point in each of the 3 axes.
NEMA (National Electrical Manufacturer Association) NEMA 4 = Intended for indoor or outdoor use
primarily to provide a degree of protection against windblown dust and rain, splashing water, hosedirected water and external ice formation.
For optional connectors, contact your Danfoss representative.
A barrier terminal strip inside the handle’s case provides connections to power, ground, and
potentiometers when no external cable is ordered. Run a cable from the strip through the strain relief
provided on the side or bottom of the case. Reference Potentiometer option on page 14. A clockwise
handle movement causes a current flow from terminal B to A when the terminal strip is facing you.
Warning
An unforeseen failure may cause an output which could activate a valve or pump. Unexpected vehicle or
mechanism movement can endanger people or damage equipment. Handles equipped with a center-off
switch will mitigate this condition. When an active neutral is necessary, provide an operator-presence
interlock and/or braking system sufficient to stop and hold the system or vehicle.
In most applications, auxiliary switches must be customer-wired, as shown in Potentiometer option on
page 14. When the switch is used as a center-off, power is connected from the external 12 Volt supply
to the terminal labeled common. The switch terminals are 3/16 inch quick-connect. PWM Option
(primarily) on page 15 shows a pre-wired control handle with center-off switch and Delphi connector,
exhibiting the handle phasing and color coding of the wires.
The following illustration shows how to assemble the mating Delphi connector (male shell, female
sockets) used in PWM Option (primarily) on page 15.
Delphi mating connector bag assembly (order seperately from handle)
DescriptionDanfoss part number
Six socketsK03370
One plastic connector body
Unsealed Delphi mating connector assembly
For optional connectors, contact your Danfoss representative.
PWM MCHXXX option models are fitted with trim potentiometers for adjusting the output current. The
following illustration shows the location of the three trim potentiometers on the L handle. There are
either 3 or 4 trim potentiometers depending on the specific MCHXXX model. Reference Ordering
specification chart on page 5, Electrical characteristics option table, Code M—Proportional, three
Danfoss | February 201711022667 | BC00000033en-US0601 | 11
C
T
F
R
Step Current Adjust
Forward*
Reverse*
* Span adjust or full current output
1138B
Reverse threshold*
Forward full stroke*
Reverse full stroke*
Forward threshold*
2382
* Clockwise increases output
Technical Information
MCHXXX
Installation
Caution
Overcurrent could damage the control handle. Use a 1 Amp fuse in series for applications with low
current requirements to avoid damaging the control handle.
MCHXXX PWM option with trim potentiometer configurations
Handle adjustments
PWM MCHXXX option reached its end of life cycle in 2008 and is no longer available.
Danfoss | February 201711022667 | BC00000033en-US0601 | 13
1224B
From Potentiometer +
From +
Torque Motor
12 or 24 VdcGround
-
B
A
+
NC
COM NO
EDC
A B
( + )(A) −
A D
B C
6
1 2 3
4
5
7
kwa1381515070607
Technical Information
MCHXXX
Connection diagrams
Potentiometer option
Direct EDC Control
Center-off switch assembly and wiring connections for the control handle.
MCHXXX potentiometer models having either two or single 200 Ohm pots are configured to directly
control Danfoss variable pumps with electrical displacement controls (EDCs). Whether two or single pots,
both require the same electrical connection to the EDC and only one of the dual coils needs to be
connected to achieve forward and reverse pump flow.
MCHXXX potentiometer models having a 1K Ohm pot are commonly used as analog input to a controller
(for example, SX or PLUS+1® MC200 Controllers). The supply voltage (5 VDC sensor supply) is usually
supplied from the controller.
MCHXXX potentiometer models typically used for a PLUS+1® input
Danfoss
Return Goods Department
3500 Annapolis Lane North
Minneapolis, Minnesota 55447
For devices in need of repair or evaluation, include a description of the problem
and what work you believe needs to be done, along with your name, address and telephone number.
2800 East 13th Street
Ames, IA 50010, USA
Phone: +1 515 239 6000
Danfoss
Power Solutions Trading
(Shanghai) Co., Ltd.
Building #22, No. 1000 Jin Hai Rd
Jin Qiao, Pudong New District
Shanghai, China 201206
Phone: +86 21 3418 5200
Products we offer:
Comatrol
www.comatrol.com
Turolla
www.turollaocg.com
Hydro-Gear
www.hydro-gear.com
Daikin-Sauer-Danfoss
www.daikin-sauer-danfoss.com
Bent Axis Motors
•
Closed Circuit Axial Piston
•
Pumps and Motors
Displays
•
Electrohydraulic Power
•
Steering
Electrohydraulics
•
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
•
Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic and
electronic components. We specialize in providing state-of-the-art technology and solutions
that excel in the harsh operating conditions of the mobile off-highway market. Building on
our extensive applications expertise, we work closely with our customers to ensure
exceptional performance for a broad range of off-highway vehicles.
We help OEMs around the world speed up system development, reduce costs and bring
vehicles to market faster.
Danfoss – Your Strongest Partner in Mobile Hydraulics.
Go to www.powersolutions.danfoss.com for further product information.
Wherever off-highway vehicles are at work, so is Danfoss. We offer expert worldwide support
for our customers, ensuring the best possible solutions for outstanding performance. And
with an extensive network of Global Service Partners, we also provide comprehensive global
service for all of our components.
Please contact the Danfoss Power Solution representative nearest you.
Local address:
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already on order provided that such alterations can be made without changes being necessary in specifications already agreed.
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