KEB COMBIVERT F5 Operation Manual page 111

Unintended Movement
The Unintended Movement event occurs when the difference between the motor position during idle
after a normal run, changes by more than the value set in parameter LX25 Unintended Motion Distance.
The event is logged and requires a forced reset.
A normal run is considered any run profile that is not inspection. An Unintended Movement event will
not occur after an inspection run.
• For US04 Control Type = Binary Speed (1), Digital Speed (0) Selection, or Serial Binary Speed
DIN66019 Serv. 50 (6), the speed signaled for inspection speed must match the corresponding in-
spection speed according to the LI03 Speed Input Decoding.
• For US04 Control Type = Serial or Analog, a run is considered an inspection run when the digital
input (LI04-11) programmed as Inspection Speed (32) is on for the length of the entire run.
After a normal run, the motor position is determined after the Brake Control output conditions have
set and the Enable input has been dropped. During idle until the next normal run, the motor position
is compared against the level set in LX25 before an Unintended Movement event occurs. The level of
comparison can be adjusted and the function can be turned off in Special Functions, LX21. The Elevator
Position can be monitored in Diagnostics Screen #10 or DG04. Since the motor position is determined
from the motor encoder, movement of the elevator car itself from rope stretch, etc., would not cause an
Unintended Movement event.
Once an Unintended Movement event has occurred, a forced reset is required by simultaneously press-
ing the F1 and F4 hotkeys on the keypad operator. The event cannot be cleared by signaling the reset
on the drive or cycling power.
If the cause of unintended movement is from the drive enable being dropped, then a Drive Enable
Dropped event will occur instead of Unintended Movement.
i
The Unintended Movement Function can be turned off with LX21 Unintended Movement
=
OFF.
No Visible Change When Adjusting LM07
If no visible change is seen when adjusting LM07 (motor torque), use the NUM function to change the
number.
1. Go to the parameter to be changed.
2. Press Enter to enter Edit mode.
3. Press F4 for NUM.
4. Change the number using the arrow and function keys (F2 = change digit left; F3 = add decimal; F4
change digit right)
5. Press Enter to save values.
6. Press Escape to go back to parameter list.
Additional Information
111