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
Stepper Valve driver, type EKF 1A, EKF 2A
Portfolio overview
Table 1: Portfolio overview
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 |
Table 2: Related Products |
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|
|
|
|
EKE 2U Backup power module |
Power supply |
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|
|
|
|
|
|
AK-PS |
|
Input: 100 - 240 V AC/45 - 65 Hz |
EKE 2U Backup power module ensures su•cient power in case of power failures |
Output: 24 V DC: available with 18 VA, 36 VA and 60 VA |
to the controller / driver to ensure closure of the electronic valves. |
ACCTRD |
|
Input: 230 V AC, 50 - 60 Hz |
|
Output: 24 V AC, available with 12 VA, 22 VA and 35 VA |
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|
© Danfoss | Climate Solutions | 2022.03 |
AI383967949152en-000102 | 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
ETS Colibri |
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AI1 |
Unit |
programmable |
|
Digital out |
controller |
Figure 2: EKF 2A
ETS Colibri |
|
|
AI1 |
Unit |
|
AI2 |
programmable |
|
controller |
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Digital out |
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||
ETS Colibri |
|
AI1 |
Analog input signal 1 |
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|
AI2 |
Analog input signal 2 |
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© Danfoss | Climate Solutions | 2022.03 |
AI383967949152en-000102 | 3 |
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