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Unit Specification
3500 Annapolis Lane North, Minneapolis, MN 55447
Telephone: (763) 509-2084 Telefax: (763) 559-0108
ISSUE: 1 DATE: May 1993
KE07204
Ramped Valve Driver
GENERAL DESCRIPTION
This device is a ramped valve driver which accepts a setpoint potentiometer input from a control handle and drives a single
coil valve. It is pulse-width modulated and has adjustable acceleration/deceleration ramping. The PWM frequency is selected
by a jumper on the terminal strip. The threshold and full stroke forward outputs are adjustable. It does not have a reverse output.
OUTPUT CHARACTERISTICS
SUPPLY VOLTAGE
24 Vdc
PWM FREQUENCY
50 Hz or 30 Hz
OUTPUT CURRENT
800 mA maximum
FACTORY SETTINGS WITH 26 OHM LOAD
Threshold: 250 mA
Full Stroke 600 mA
DIMENSION AND CONNECTION DIAGRAM
1687
100,08
(3.94)
88,9
(3.50)
5,59 (0.22)
6,35 (0.25)
69,85 (2.75)
113,0 (4.45)
148,59 (5.85)
3,96 DIA (6)
(0.156)
THRESHOLD
FWD
F/S
RAMP
TIME
20,32
(0.8)
N/C
N/C
POT GND
GND
+24V POWER
OUTPUT - FWD
POT +8V
POT WIPER
N/C
N/C
FOR 50HZ PWM JUMPER TERMINALS TB1-11 AND TB1-12
FOR 30HZ PWM REMOVE JUMPER
1 2 3 4 5 6 7 8 9 10
Dimensions in millimeters (inches).
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© Danfoss, 2013-09 K14425 UNIT SPEC 1
Phased Out Products
ADJUSTMENTS
TIME - SECONDS
0 1 2 3 4 5 6
25
50
75
100
R40 MAX CCW
R40 MAX CW
VALVE OUTPUT - %
1679
INPUT VOLTS
0
0
OUTPUT CURRENT - mA
1 2 3 4 5 6 7 8
200
400
600
800
1000
FULL CW
R18
FACTORY
SETTING
FULL
CCW
1688
Threshold adjustment.
1689
Full stroke adjustment.
INPUT VOLTS
0
0
OUTPUT CURRENT - mA
1 2 3 4 5 6 7 8
200
400
600
800
1000
FULL CW
R30
FACTORY
SETTING
FULL
CCW
2 K14425 UNIT SPEC © Danfoss, 2013-09
Phased Out Products
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