Danfoss MCV104A Manual

DESCRIPTION
The MCV104A Electrical Displacement Control (EDC) is a
two-stage electrohydraulic pump stroke control which uses
a mechanical feedback to establish closed-loop control of the
swashplate angle of Sauer-Danfoss Series 2X and 3X pumps.
pressure proportional to the applied electrical signal. The
second stage uses the
spool arrangement and port oil to the pump servocylinders. The
sec
machine safety) in the pump's output while maintaining
optimum dynamic response to control commands.
FEATURES
• Single command source can be used to control both
hydrostatic pump and motor.
• Servo control deadband independent of signal null dead-
band: offers safety combined with accurate and responsive
control.
•
interface, full environmental testing.
• Minimum long term null shift.
• Pilot supply screens in series, upstream screen is externally
serviceable.
ORDERING INFORM ATION
A range of options to the basic EDC allows it to be custom-tai-
each slot of the two order numbers, as shown in Tables A and
B. Consult Sauer-Danfoss, Minneapolis, MN, with further ques-
tions.
Previous to September, 1985, Electrical Displacement Controls
(EDC's) and Hydraulic Displacement Controls (HDC's) were sold
with appropriate linkage assemblies installed for the various
pump options. In order to simplify the inventory process, and
thereby provide faster delivery to customers, this single ordering
number, as described further in the scheme outlined in Table A,
remains the same - the only change being that a "9" is always
valve without linkage, allows the EDC or HDC to be mounted on
any pump or motor. The second number to be included with the
is to be mounted. This in turn determines the components of
the mounting kit, including the appropriate link.
© Danfoss, 2013
erential pressure to drive its double
K07116 • Rev AB • September 2013
MCV104A
Electrical Displacement Control
K07116
-
•
stroke.
• First and second stages can be individually replaced.
• Swashplate movement can be visually detected.
• Single or dual coil torque motor.
• 4 to 20 mA control option.
• Intrinsically safe control option for hazardous atmosperic
environments.
TABLE A. INFORMATION NECESSARY TO SPECIFY
THE EDC
DEVICE IDENTITY
CONFIGURATION
SERIES*
PILOT STYLE
*
in the series slot for the control's order number; A "9" indicates
a generic control.
Issued: November 2003
MCV104A X 9 XX
1