Danfoss MCHXXX User guide
Technical Information
MCHXXX
Control Handle
powersolutions.danfoss.com
Technical Information
MCHXXX
Revision history Table of revisions
Date Changed Rev
February 2017 MCHXXX Potentiometer Models with 1K Ohm table updated 0601
October 2016 Minor updates 0502
August 2016 Updated to Engineering Tomorrow design 0501
September 2013 Rebranded to Danfoss layout FA
January 2011 Various updates EA
May 2010 MCHXXX Potentiometer Models with 1K Ohm table updated DA
February 2010 MCHXXX Potentiometer Models with 1K Ohm table updated CA
August 2009 MCHXXX Potentiometer Models with 1K Ohm table updated BA
January 2009 Corrected operation and storage temperature AB
December 2008 First edition AA
2 | © Danfoss | February 2017 11022667 | BC00000033en-US0601
Technical Information
MCHXXX
Contents
Overview
Ordering information
Technical data
Installation
Connection diagrams
Device repair
Description..........................................................................................................................................................................................4
Features................................................................................................................................................................................................4
Ordering specification chart.........................................................................................................................................................5
Specifications.....................................................................................................................................................................................8
Environmental testing....................................................................................................................................................................9
Dimensions.......................................................................................................................................................................................10
Connectors....................................................................................................................................................................................... 10
Wiring.................................................................................................................................................................................................11
Potentiometer option ..................................................................................................................................................................14
Potentiometer option with 1K Ohm potentiometer ........................................................................................................14
PWM Option (primarily)...............................................................................................................................................................15
PWM option performance.....................................................................................................................................................16
Return to............................................................................................................................................................................................17
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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
•
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Technical Information
MCHXXX
Ordering information
Ordering specification chart
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.
Ordering specification chart
MCH X X X X X XXX
Mounting option Control knob type Handle actuation Electrical
characteristics
Mounting option
Code Description Detail
1 Base (surface) mount aluminum case Four screws connect to the flanges on the bottom of the metal case.
2 Top mount (drop in) with plastic case
3 Top mount (drop in) without case
4 Panel mount with plastic case
5 Panel mount without case Four 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.
Connector Factory assigned
Control knob option
Code Description Detail
1 Non-locking
2 Center lock The non-locking handle has a standard ballThe center lock handle has a
3 Non-locking, auxiliary push button switch
5 Non-locking, no knob The customer provides customized knob.
6 Three position maintained rocker switch
*
8
9 Three position momentary rocker switch This 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
Code Description Detail
A Spring return, bi-directional This handle uses a torsion spring to return to the mechanical center position and
B Friction held, bi-directional This 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.
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Technical Information
MCHXXX
Ordering information
Handle actuation option (continued)
Code Description Detail
C Friction held, uni-directional
D Special (friction held, center detent only, no brake)
Electrical characteristics option
Code Description Detail
A Proportional, no switches, 12 VDC
B Proportional, center off switch, 12 VDC, This handle has a center-off switch that ensures zero output voltage within ±3
C Proportional, center off switch, 24 VDC Same as option B except this handle runs on a supply voltage of 24 Volts.
D Proportional, center off and auxiliary switch, 12 VDC Same as option B except this handle has a second switch that actuates at +2 or -2
E Proportional, set-point potentiometer, 12 VDC Same as option B except this handle maintains the same polarity of signal in
F Step-plus-proportional, 12 VDC
G Step-plus-proportional, 24 VDC Same as option F, except this handle runs on a supply voltage of 24 Vdc.
H Switching This handle is non-proportional. Moving the handle off null activates switches
J Step-plus-proportional, full auxiliary switching, 12
K Proportional, unwired switch The customer uses the unwired center switch to operate an auxiliary function,
*
L
M Proportional, three switches The 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.
one unwired switch in reverse.
6 | © Danfoss | February 2017 11022667 | BC00000033en-US0601
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