Danfoss EKE 1P Panduan Pengguna - Halaman 10

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Valve neutral zone

An EKE controller has a complex algorithm implemented to handle oscillation issues

related to output valve OD by defining some neutral zone. In neutral zone, the valve will

not move untill it overcomes the definite variation in the valve opening degree.

For the default neutral zone of 0.5 % hysteresis, the valve will not move if it is unable to

receive the higher variation than the set value.

The benefit of using such techniques will not affect the performance of the system, but

will reduce the problem related with the fluctuating signal, step loss and hysteresis in

the valve.

Communication

Controller adr.

Controller address - applies both to the MODBUS and the CANBUS

CAN baudrate

Setting of the CANBUS baudrate

Service

Actual OD

Read-out of the valve opening degree in percentage

Actual step

Read-out of the valve opening degree in number of steps

EKE 2U state

Read-out of the EKE 2U battery back-up module status.

Init: Initialising

Ready: Fully charged and functional

Char: Charging

Repl: Check connections or replace EKE 2U module as the battery voltage is likely too

low to guarantee full closure of the valves.

Fault: EKE 2U battery voltage too low to close the valve.

Actual battery

Read-out of the battery back-up voltage level

voltage

Manual mode

Enables manual control of the valve.

Remember to disable this function after manual control. Otherwise the EKE 1P will

remain in manual mode until a power cycle or main switch occurs.

Manual OD

Manual control of the valve opening degree in application 2. In application 1 the

manual control is done from the AK-PC. When entering the manual mode, the valve will

start at the current OD.

10 | BC320219567793en-000201

0 – 5%

Fac: 0.5%

20k / 50k / 125k / 250k / 500k / 1M

Fac: 50k

On / Off

Fac: Off

0 – 100%

Fac: current OD