Danfoss MCH19AM1649 Technical Information page 6

Technical Information
MCHXXX
Ordering information
Handle actuation option (continued)
Code Description
C
Friction held, uni-directional
D
Special (friction held, center detent only, no brake)
Electrical characteristics option
Code Description
A Proportional, no switches, 12 VDC
B
Proportional, center off switch, 12 VDC,
C
Proportional, center off switch, 24 VDC
D
Proportional, center off and auxiliary switch, 12 VDC
E Proportional, set-point potentiometer, 12 VDC
F Step-plus-proportional, 12 VDC
G
Step-plus-proportional, 24 VDC
H
Switching
J
Step-plus-proportional, full auxiliary switching, 12
VDC
K Proportional, unwired switch
*
L
Electronic PWM auxiliary switching, 12 Vdc
M Proportional, three switches
†
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.
6 | © Danfoss | February 2017
Detail
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.
Detail
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.
This handle has a center-off switch that ensures zero output voltage within ±3
degrees of handle center position.
Same as option B except this handle runs on a supply voltage of 24 Volts.
Same as option B except this handle has a second switch that actuates at +2 or -2
degrees.
Same as option B except this handle maintains the same polarity of signal in
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
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.
Same as option F, except this handle runs on a supply voltage of 24 Vdc.
This handle is non-proportional. Moving the handle off null activates switches
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.
The customer uses the unwired center switch to operate an auxiliary function,
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.
The three switches are: a wired center switch; one unwired switch in forward; and
one unwired switch in reverse.
Specifications on page 8, Step-
11022667 | BC00000033en-US0601