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

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Technical Information
MCHXXX
Contents
Overview
Description..........................................................................................................................................................................................	4
Features................................................................................................................................................................................................	4
Ordering information
Ordering specification chart.........................................................................................................................................................	5
Technical data
Specifications.....................................................................................................................................................................................	8
Environmental testing....................................................................................................................................................................	9
Installation
Dimensions.......................................................................................................................................................................................	10
Connectors.......................................................................................................................................................................................	10
Wiring.................................................................................................................................................................................................	11
Connection diagrams
Potentiometer option ..................................................................................................................................................................	14
Potentiometer option with 1K Ohm potentiometer ........................................................................................................	14
PWM Option (primarily)...............................................................................................................................................................	15
PWM option performance.....................................................................................................................................................	16
Device repair
Return to............................................................................................................................................................................................	17

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Technical Information

MCHXXX

Overview

Description

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.

Features

•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	Connector	Factory assigned
				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	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.
3	Top mount (drop in) without case	Two screws connect to an enlarged mounting plate.
		Top mounting allows the entire handle to be removed from above the panel.
4	Panel mount with plastic case	Four screws connect to the top plate that holds the boot in place.
		The case is made of black nylon plastic.
5	Panel mount without case	Four screws connect to the top plate that holds the boot in place.

Control knob option

Code	Description	Detail
1	Non-locking	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.
2	Center lock	The non-locking handle has a standard ballThe center lock handle has a
		cylindrical knob and provides a positive center lock that unlatches when the
		operator pulls up on the knob.
3	Non-locking, auxiliary push button switch	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).
5	Non-locking, no knob	The customer provides customized knob.
6	Three position maintained rocker switch	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.
8*	Special (no handle or knob)
9	Three position momentary rocker switch	This is the same as option 6, but the switch returns to the center position when
		released.

* Unique configuration, for details contact your Danfoss representative.

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
		has 30 degrees of handle throw on either side of center.
B	Friction held, bi-directional	This handle has an adjustable drag, set with a clamp-type brake that holds the
		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	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.
D	Special (friction held, center detent only, no brake)

Electrical characteristics option

Code	Description	Detail
A	Proportional, no switches, 12 VDC	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.
B	Proportional, center off switch, 12 VDC,	This handle has a center-off switch that ensures zero output voltage within ±3
		degrees of handle center position.
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
		degrees.
E	Proportional, set-point potentiometer, 12 VDC	Same as option B except this handle maintains the same polarity of signal in
		forward or reverse.
F	Step-plus-proportional, 12 VDC	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, Step-
		Plus-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.
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
		that power ON/OFF devices (for example, solenoid valves).
J	Step-plus-proportional, full auxiliary switching, 12	This handle uses the step switches for additional secondary functions.
	VDC	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.
K	Proportional, unwired switch	The customer uses the unwired center switch to operate an auxiliary function,
		such as neutral start interlock.
L*	Electronic PWM auxiliary switching, 12 Vdc	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.
M	Proportional, three switches	The three switches are: a wired center switch; one unwired switch in forward; and
		one unwired switch in reverse.
X†	Special (no handle or knob)
Y†	Special
Z†	Special

* 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.

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