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BLN-96-9209-2E
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R34 R28
HGFEDCBAMP
V1
V2
V3
V28
R16
MCE123A
Auxiliary Controller
The SAUER-SUNDSTRAND MCE123A Auxiliary
Controller provides, in open loop, a "reverse proportio-
nal" control signal to the Electrical Displacement Control
(EDC). This signal is proportional to the measured
frequency input to the Controller from a speed sensor.
The Controller is designed so that with increasing
speed, the output is reduced.
OUTPUT CURRENT
see ordering information
FREQUENCY RANGE
see ordering information
© Copyright 1999
Contents subject to change
BLN-96-9209-2E Issued: October 1999
DESCRIPTION
SUPPLY VOLTAGE
24V
DC
RIPPLE
≤ 20%
• Easy adjustment
• Available with enclosure
• Reverse polarity and short circuit protected
• Withstand vibration and shock
Controller Supply voltage Frequency range Output current Id. No.
[V
DC
] [Hz] [mA]
MCE123A1001 24 200 - 700 60 - 100 303 750
MCE123A1002 24 253 - 380 30 - 100 710 962
FEATURES
ORDERING INFORMATION
TECHNICAL DATA
Phased Out Products
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BLN-96-9209-2E
BLOCK DIAGRAM
S00425
EDC
MCV104A
MCV105A
MCV111B
PPU
V
t
Voltage regulator
R28
Slope
R34
Output current
R16
Startpoint
-
+
Battery
24V
DC
-+
V
STAB
Engine
V
f
f
V
F
A
B
22
30
32
2
4
Phased Out Products
3
BLN-96-9209-2E
The electronic MCE123A converts the frequency signal
to a proportional DC voltage.
Depending on an adjustable control characteristic
(see figure 1) the output current value is "reverse
proportional" to the frequency signal.
Figure 1
THEORY OF OPERATION
DIMENSIONS
S01748_37e
R28
Slope
R34
Output
current
R16
f
STARTPOINT
f
Ι
0
S00374
100
160
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R34 R28 R16
HGFEDCBA
MP
V1
V2
V3
V28
EDC
MCV104A
MCV105A
MCV111B
PPU
+
-
F
Battery
24V
DC
+
-
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3
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5
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R34 R28 R16
HGFEDCBAMP
V1
V2
V3
V28
A
B
CONNECTION DIAGRAM
S00279
Phased Out Products
/