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Danfoss KE04112 Valve Drive Amplifier Installation guide

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Unit Specification
3500 Annapolis Lane North, Minneapolis, MN 55447
Telephone: (763) 509-2084 Telefax: (763) 559-0108 ISSUE: 2 DATE: September 1996
KE04112
Valve Drive Amplifier
GENERAL DESCRIPTION
DIMENSIONS
OUTPUT CHARACTERISTICS
CONNECTION DIAGRAM
.
.
1901
1651A
The device is a free-standing amplifier mounted on 4 stand offs. Current or voltage signal from a transducer/controller, through
the amplifier, produces current to drive electrohydraulic actuators. Connections to the amplifier are via screw terminals.
SUPPLY VOLTAGE
48 Vdc
INPUT IMPEDANCE
240 ohm
START CURRENT
4 mA nominal (1 Volt)
FULL STROKE CURRENT
20 mA (4.8 Volt)
OUTPUT CURRENT
100 mA into a 25 ohm load
12,70
(0.50)
9,65
(0.38)
5,33 (0.21) INSIDE DIA.
76,20
(3.00)
57,15
(2.25)
6,35
(0.25)
114,30 (4.50)
101,60 (4.00)
Dimensions of the KE04112 in Millimeters (Inches).
1902
1
2
3
4
5
6
7
8
9
10
VALVE COILDIRECT OUTPUT
48 Vdc
SIGNAL COMMON
4 TO 20 mA SIGNAL
TRANSDUCER/
CONTROLLER
EDC
AB
1
2
2
1 INPUT IMPEDANCE IS 240 OHMS
DIRECT OUTPUT: 200 mA AT 10 VOLTS MAXIMUM
CURRENT
SOURCE
KEO4112
VALVE
DRIVE
AMPLIFIER
10
20
30
40
50
60
70
80
90
100
% MAXIMUM
OUTPUT VOLTAGE
% SUPPLY VOLTAGE
0 2 4 6 8 10 12 14 16 18 20
© Danfoss, 2013-09 K19479 UNIT SPEC 1
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