PERFORMANCE
(continued)
SENSITIVITY
The valve will respond to a 2% change in input current
throughout the rated current range except for the
deadband region.
PULSE WIDTH MODULATION
When using a pulse width modulated current input, do
not exceed 110 mA for single coil devices or 150 mA
(algebraically summing the currents in coil A and B) for
dual coil devices. Avoid pulse width modulated frequen-
cies between 300 and 500 Hz, which approach the pilot’s
resonant frequency of 400 Hz.
AMPLITUDE AND PHASE RESPONSE
Amplitude and phase response of the MCV105C tested
over the given frequency range with supply pressure of
225 psi. Amplitude response curve is on top; phase lag
is on bottom. The amplitude at low frequency is 40
±
15
mA and the load is 650 psi. Frequency response varies
with the applied load. Curves are shown with a current
driver.
1352
ENVIRONMENTAL
SHOCK
50 G’s for 11 milliseconds. Three shocks in both
directions of the three mutually perpendicular axes for a
total of 18 shocks.
VIBRATION
Withstands a vibration test designed for mobile equip-
ment control consisting of two parts:
1.
Cycling from 5 to 2000 Hz in each of the three axes.
2.
Resonance dwell for one million cycles for each
resonance point in each of the three axes.
Subject to acceleration levels of 1 g to 46 G’s. Accelera-
tion level varies with frequency.
HUMIDITY
After being placed in a controlled atmosphere of 95%
humidity at 49 ° C (120° F) for 10 days, the EDC will
perform within specification limits.
WIRING
Two wiring styles are available: MS and Packard connec-
tors. The MS connector has four pins, only two of which are
used (A and B) for single coil devices. (Note: device MS
connector is not field-replaceable.) Its mate is part number
K08106 bag assembly (MS3106E-14S-2S). See MS Con-
nector Pin Orientation, page 9, for proper pin locations. With
both designs, phasing is such that a positive voltage on the
Red wire (Pin B) will cause a pressure rise at the C2 port for
single coil valves.
The mating Packard connector is part number K03383 bag
assembly comprised of:
1.
2 (or 4) 14-16 gauge sleeves
2.
2 (or 4) 18-20 gauge sleeves
3.
1 plastic housing
4.
2 (or 4) gray cable seals
5.
2 (or 4) green cable seals
6.
2 (or 4) blue cable seals
See Ordering Information, page 1.
To assemble the female tower connector, use the follow-
ing directions:
1.
Isolate the wires that extend from the command source
to the EDC.
2.
Strip back the insulation 5.5 millimeters on both sides.
3.
Push a ribbed cable seal over each of the wires with the
smaller-diameter shoulder of the seals toward the wire
tip. Select the pair of seals that fits tightly over the wires.
The distance from the tip of the wires of the first (nearest)
rib should be 9.5 millimeters. Thus the insulation should
just protrude beyond the seal.
4.
Select the larger of the two sets of pins, as measured at
Dimension A. See Dimension A diagram, page 9, if
using 14-16 gauge wire. Choose the smaller if using 18-
20 gauge. Place the wire into the socket so that the seal
edge is pushed through and extends slightly beyond the
circular tabs that hold it in place. See Packard connector
Crimp, page 9, crimp in the locations shown with a
Packard 12014254 crimp tool.
5.
Manually insert the assembled wires into the back end
(large hole) of the plastic housing. Push until the wire
detents with an audible click, then pull back slightly to
0 db
-3 db
-6 db
-9 db
-60°
-120°
-180°
10 Hz
20 Hz
10 Hz
20 Hz
1 Hz
1 Hz
© Danfoss, 2014-05
11152452 • Rev AA • May 2014
8
