<![endif]>080R9346
ENGINEERING |
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TOMORROW |
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Installation guide |
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Back up power module |
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Type EKE 2U |
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English |
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<![if ! IE]> <![endif]>080R9346 |
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Introduction |
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EKE 2U module is an optional energy storage device. The module can provide enough energy |
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during power failure to the stepper controller to ensure closure of the electronic valves. It can be |
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used with one or two controllers depending on the application. |
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State of Health (SOH) function of EKE 2U gives feedback to controllers to detect the status of the |
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backup module and lets the controller know if the backup is Ready to use, Charging or Failed. |
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Power Failure signal (PF): This signal should be connected to controller only if the controller |
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More info |
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cannot detect power failure by itself. Not required for EKE controllers. |
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Load Switch, EKE 2U can deliver power backup for 2 valves. While using more than 1 valve the |
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load switch can be changed to deliver more energy. |
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Compatible Controllers: Danfoss EKE series and MCX controllers. For other controllers, please |
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contact Danfoss. |
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Wiring Diagram
Power +/~ 24 V -/~
LOAD SWITCH |
SoH communication (optional) |
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<![if ! IE]> <![endif]>COM |
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<![if ! IE]> <![endif]>D12 |
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<![if ! IE]> <![endif]>L H GND |
<![if ! IE]> <![endif]>COM |
<![if ! IE]> <![endif]>5V+ DI2 |
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CAN RJ |
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Backup power module |
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EKE 2U - 080G5555 |
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Superheat controller |
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EKE xx - 080G5xxx |
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<![if ! IE]> <![endif]>Danfoss |
<![if ! IE]> <![endif]>80G8287A.01 |
<![if ! IE]> <![endif]>–/~ |
<![if ! IE]> <![endif]>+/~ |
<![if ! IE]> <![endif]>GND |
<![if ! IE]> <![endif]>Bat+ |
<![if ! IE]> <![endif]>A1 A2 B1 B2 |
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<![if ! IE]> <![endif]>RED |
<![if ! IE]> <![endif]>GREEN |
<![if ! IE]> <![endif]>PF |
<![if ! IE]> <![endif]>SGND |
<![if ! IE]> <![endif]>SoH |
<![if ! IE]> <![endif]>+24 V |
<![if ! IE]> <![endif]>GND |
<![if ! IE]> <![endif]>–/~ |
<![if ! IE]> <![endif]>+/~ |
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<![if ! IE]> <![endif]>GND |
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<![if ! IE]> <![endif]>Bat+ |
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<![if ! IE]> <![endif]>Wycombe End, |
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<![if ! IE]> <![endif]>Info for UK customers only: Danfoss Ltd., 22 |
© Danfoss | Climate Solutions | 2021.09 |
AN325741621547en-000803 | 1 |
Dimensions in mm |
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EKE 2U |
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| <![if ! IE]> <![endif]>125 |
<![if ! IE]> <![endif]>121 |
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Weight: 233 gram |
80 |
60 |
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Technical specifications
Nominal input voltage |
24 V DC / 24 V AC |
Input voltage range |
20 - 40 V DC, 19 - 29 V AC |
Frequency |
DC / AC 50 … 60 Hz + /-10% |
Overvoltage capability |
< 42 V DC |
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< 30 V AC |
Nominal input power |
DC: 15 VA, AC: 25 VA |
Protection class |
II |
Inrush current |
< 15 A |
Standby current @ 24 V DC |
~ 0.1 A |
Nominal output voltage (UNOM) |
24.0 V DC ± 2% |
Nominal output current (INOM) |
2 A |
Maximum output current on standby |
30 mA |
Current limiting |
2.5 A ± 10% |
Parallel connection for time increase |
yes |
Series connection |
no |
Capacitor charging current @ 24 V DC |
< 1 A |
Charging time |
~ 2.5 min from fully discharged state |
Max Voltage / current at X2 (open collector) |
24V / 8.5 mA |
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Ambient temperature during operation |
TAMB = -25 °C - + 60 °C |
Storage temperature |
- 30 °C - + 70 °C |
Humidity |
< 90 % rH, no condensation. |
Environmental pollution |
Type 2 |
Protection degree |
IP 20 |
Altitude |
Up to 2000 m |
Immunity to voltage Surges EN 61000-4-5 |
Level 3 in/out |
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Level 2 signals |
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Assembly |
On DIN rail |
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Overvoltage protection |
Category II |
Lifespan |
>90000 hours (10 years) @ 35 °C and >3 years @ 50 °C |
MTBF |
> 500.000 h @ 25 °C according to IEC 61709 / SN 29500 |
© Danfoss | Climate Solutions | 2021.09 |
AN325741621547en-000803 | 2 |
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