Cp.28 Response Of External Overtemperature - KEB Combivert F5 Installationsanleitung

CP.24 Max. ramp current
This function protects the frequency inverter against switching off through overcurrent during
the acceleration ramp. When the ramp reaches the adjusted value,it is stopped so long until
the current decreases again. CP.3 displays "LAS" at active function.
CP.25 Max. constant current
This function protects the frequency inverter against switch off through overcurrent during
constant output frequency. When exceeding the adjusted value, the output frequency is
reduced until the value drops below the adjusted value. CP. 3 displays "SSL" at active
function.
CP.26 Speed search condition
When connecting the frequency inverter onto a decelerating motor, an error can be triggered
by the differing rotating field frequencies. With activated speed search the inverter searches
for the actual motor speed, adapts its output frequency and accelerates with the adjusted
ramp to the given set value. During speed search CP.3 displays "SSF". The parameter
determines, under what conditions the functions operate.
In case of several conditions the sum of the value must be entered. Example: CP.26 = 12
means after reset and after auto-reset UP.
Value Condition
0 Function off
1 at control release
2 at switch on
4 after reset
8 after Auto-Reset UP

CP.28 Response of external overtemperature

CP.28 determines the response of the drive on the external temperature monitoring. At
factory setting the function is switched off. In order to activate this function the power circuit
terminals T1/T2 must be connected. After that the response can be adjusted according to
following table. If overheat no longer exists, the message E.ndOH (or A.ndOH) is output.
Only then the error can be reset or the automatic restart can be carried out.
CP.28 Display
0 E.dOH
1* A.dOH
2* A.dOH
3 A.dOH
4* A.dOH
5* A.dOH
6* none
7 none
*) If the motor is still too hot after 10 seconds, the error E.dOH is triggered and the mo-
Response
Immediate disabling of modulation
Quick stop / disabling the modul. after reaching
speed 0
Quick stop / holding torque at speed 0
Immediate disabling of modulation
Quick stop / disabling the modul. after reaching
speed 0
Quick stop / holding torque at speed 0
No effect to the drive; With CP.31/32 an external
module can be controlled (e. g. fan)
No effect to the drive; Malfunction is not present!
External temperature monitoring is not activated.
CP-Parameter
Remove fault;
Autoreset, if no
fault is present
inapplicable
Restart
reset
GB - 27