User Guide | Stepper Valve Extension Module, Type EKE 1P
© Danfoss | DCS (vt) | 2020.03
BC320219567793en-000201 | 11
Alarm text
Description
Valve configuration error
One or more valve configuration errors are blocking operation of stepper valve.
Check the other active alarms to identify the valve configuration problem.
No valve configured
No valve selected. Please configure the correct valve.
Battery critical low voltage
Voltage from back-up module is found to be critically low and the valve will likely not be fully closed in case of a
power failure.
Check connections / replace battery or EKE 2U module.
Battery low voltage
Voltage from back-up module is found to be too low to close the valve in case of power failure.
Replace battery or EKE 2U module.
Standby mode
The controller is in standby due to the Main switch parameter setting being off.
Manual control
The controller is in manual control, no automatic control is active and many alarms are disabled.
Check valve step mode vs
positioning
With I064 Valve step mode set to “full” and I029 Valve step positioning set,
Half step operation is possible. Correct either I029 or I064.
Valve speed too fast
Number of micro steps/sec is too high (higher than 12800 micro step/sec):
Reduce valve speed or use less micro steps per full step.
Valve speed to slow
Number of micro steps/sec is low (lower than 8 micro step/sec), increase valve speed, increase valve start speed or
use more micro steps per full step.
Valve emergency speed too fast
Number of micro steps/sec is too high (higher than 12800 micro step/sec).
Reduce valve emergency speed.
Valve emergency speed too slow Number of micro steps/sec is low (lower than 8 micro step/sec). Increase valve emergency speed.
Valve start speed too slow
Number of micro steps/sec is low (lower than 8 micro step/sec). Increase valve speed, increase valve start speed or
use more micro steps per full step.
Valve short circuit or driver too
hot
Valve driver is unable to drive valve.
Check for short circuit of the coils or if ambient is higher than 60 °C.
Low supply voltage
Supply voltage is found to be lower than expected tolerance.
Network master missing (CAN)
No communication possible with the pack controller AK-PC in application 1. Check the CANBUS connection and
configuration in both EKE 1P and AK-PC.
ERR31
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Alarm list
