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Application
Valve Driver
EKF 1A
ETS Colibri
Connection overview
EKF 1A
1 2 3 4
Koolkey
Koolprog pc tool
• Supports both Bipolar and Unipolar motor.
• Only one connection can be used, either 4 pole terminal block or JST XHP-5 pin connector.
• It is possible to share power supply with 2 EKF and battery backup if battery backup is galvanic isolated and the polarity of power
supply is maintained correct. The same should be observed while sharing power supply with EKF and master controller (AI signal)•
• Connect PE either to the
2 | AN375548103097en-000206
Analog signal AI1
Digital out
Wire Color scheme
1Green
2 Red
3 Black
4 White
AI1
COM
AI2
COM
DO1
or
of power connector. If grounding is done in the transformer do not use EKF grounding connector.
EKF 2A
ETS Colibri
ETS Colibri
EKF 2A
1 2 3 4
Analog input 1
Common
Analog input 2 for EKF2A only
Common
Digital output 1
AI 1
AI 2
Digital out
1 2 3 4
Koolkey
Koolprog pc tool
© Danfoss | Climate Solutions | 2024.03
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