Technical Data; Connection Diagram - Danfoss MCV109A Manual

TECHNICAL DATA

ELECTRICAL
THRESHOLD/RATED OUTPUT CURRENT
The current required to come off stroke (threshold) and
to reach full 6° destroke (rated output) will be per the
following table.
FINAL TWO DIGITS THRESHOLD
OF EDC PART #
22 or 26
23 or 27
See Performance Curve and Wiring Schemes diagrams.
The device is capable of operating continuously at 125%
of rated current at 104° C (220° F) oil temperatures.
COIL IMPEDANCE
23 ohms (single coil)
19 ohms (A, B terminals) and
15.5 ohms (C, D terminals) (dual coil)
HYSTERESIS
4 mA (.85 degrees swashplate angle) maximum at .01
Hz
LINEARITY
10% maximum of swashplate change between any two
points
PHASING
A positive voltage applied to Terminal B (Red lead) will
cause a pressure rise at the C2 port
SENSITIVITY
The valve shall respond to a 2% change in input current
throughout the rated current range
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3
WARNING
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3
When using a pulse width modulated valve driver, do not
use a carrier frequency between 200 and 600 Hz. If
these frequencies cannot be avoided, consult the fac-
tory. Do not use a pulse current of more than 120% of
that required for full output. Failure to meet the above
conditions can cause severe damage to the valve which
will result in improper system operation.
RATED OUTPUT
SETTING CURRENT
85 mA 140 mA (±10%)
125 mA 185 mA (±10%)
HYDRAULIC
FLUID
Automatic transmission fluid or hydraulic oil, such as
Mobil DTE 24 or equivalent
FILTRATION
The system hydraulics shall have 10 micron or better
filtration
CASE PROOF PRESSURE
500 psi at 121° C (250° F)
CASE PRESSURE WITH NO EXTERNAL LEAKAGE
200 psi, minimum
RATED CASE OPERATING PRESSURE
40 psi
RATED FLOW
1.15 minimum to 1.45 maximum gpm (standard device)
1.50 minimum gpm (high response)
with cylinder ports connected and 200 psi supply pres-
sure
HYSTERESIS
4 mA maximum at .01 Hz
OPERATING SUPPLY PRESSURE
215 psi above case pressure
MAXIMUM NULL LEAKAGE
.65 gpm (standard)
1.25 gpm (high response)
at 200 psi across the valve with oil of 145-160 SUS at
38° C (100° F)

CONNECTION DIAGRAM

D
C
Pin Orientation of the Optional MS Connector, Part
Number (K01314) MS3102C14S-2P.
3
A
B
1276
BLN-95-8985-1