Danfoss EKF 1A, EKF 2A Data sheet
Data Sheet
Stepper Valve driver
Type EKF 1A, EKF 2A
Driver for stepper motor valves
Stepper Valve Driver EKF series is for use where
stepper valves must be accurately controlled
typically in commercial air conditioning, heat
pumps, commercial refrigeration and food
retail applications
Features:
• Support both Bipolar and Unipolar stepper
motor valves
• Driven by analog input signal
• Fast installation and setup
• Lost step prevention
• Open circuit detection
• LED indication for valve movement and
alarm/warnings
• On board DIP switch for quick selection
• Plug and play
• 4 pole terminal block and JST-XHP 5 pin
connections
• Phoenix connector terminals
• Digital output for alarm signal
• 1 and 2 valve driver version available
AI383967949152en-000102
Features
EKF 1A
EKF 2A
Code number
080G5030
080G5035
Power supply
24 V AC/DC
24 V AC/DC
Number of valves
1 stepper motor valve
2 stepper motor valves
Valve type
Unipolar/Bipolar
Unipolar/Bipolar
Analog inputs
1
2
Digital outputs
1
1
Dip switch
1
2
Battery backup support
Yes
Yes
Mounting
35 mm, 4 DIN
35 mm, 4 DIN
Dimension (H x W)(mm)
110 x 70
110 x 70
EKE 2U Backup power module
Power supply
EKE 2U Backup power module ensures sucient power in case of power failures
to the controller / driver to ensure closure of the electronic valves.
AK-PS
Input: 100 - 240 V AC/45 - 65 Hz
Output: 24 V DC: available with 18 VA, 36 VA and 60 VA
ACCTRD
Input: 230 V AC, 50 - 60 Hz
Output: 24 V AC, available with 12 VA, 22 VA and 35 VA
Stepper Valve driver, type EKF 1A, EKF 2A
Portfolio overview
Table 1: Portfolio overview
Table 2: Related Products
© Danfoss | Climate Solutions | 2022.03 AI383967949152en-000102 | 2
AI1
AI2
Unit
programmable
controller
ETS Colibri
AI1
Digital out
ETS Colibri
AI1
AI2
ETS Colibri
Digital out
Unit
programmable
controller
Analog input signal 1
Analog input signal 2
Stepper Valve driver, type EKF 1A, EKF 2A
Applications
EKF series stepper valve drivers can be used in application where accurate control of stepper motor valves are
needed using analog input signals (0-10V, 0-5V, 4-20 mA, 0-20 mA) from unit programmable controllers. The
product can be used for both Bipolar and Unipolar type valves. General applications include use in commercial air
conditioning, heat pumps, commercial refrigeration and food retail application
Figure 1: EKF 1A
Figure 2: EKF 2A
© Danfoss | Climate Solutions | 2022.03 AI383967949152en-000102 | 3
Loading...