KEB Combivert F5 Instruction Manual page 13

Flow chart at input coding
V Leveling speed (X2A.10)
L
V rated speed (X2A.11)
N
V Inspection speed (X2A.12)
I
forward (X2A.14)
Start (X2A.16)
HS (X2A.24...26)
Brake (X2A.27...29)
t1: VN rated speed and direction of travel are set. Immediately after that the inverter sets the output for the
main contactors.
t2: The control release (Start) is set by a relay parallel to the main contactor control. Thereupon the output
phase check is executed.
t3: Upon successful output phase check the brake output is set. Thereupon the brake opening time runs out.
Then the motor starts to turn.
t4: The rated speed is reset and the leveling speed is set.
t5: The leveling speed is reset and the stopping is initiated.
t6: On reaching the speed 0 rpm the brake output is reset. Afterwards the brake engage time runs off.
t7: The output for the main contactor is reset and thus also the control release and the direction of travel.
Generally the inverter switches the main contactors only in currentless condition.
Description of the Unit
v
t1 t3
t2
t4 t5 t6 t7
t
GB - 13