Wegner Crane CFW500 series Applications Manual - page 49
Parameters Description
Crane | 49
7 – The motor reaches 0 Hz and remains magnetized (If within the period programmed in P1027 a new hoisting
or lowering command does not occur, the motor will be demagnetized).
3.11.2 Horizontal
P1038 – Current Threshold for Lightweight Detection
Adjustable
0.0 to 200.0 A
Factory Setting: 10.0 A
Range:
Proprieties:
Access groups via HMI:
SPLC
Description:
This parameter configures the motor current threshold for lightweight detection. In other words, when the actual
motor current is below the adjusted value, this indicates that it is with lightweight.
P1039 – Speed Threshold for Lightweight Detection Enabling
Adjustable
0.0 to 500.0 Hz
Factory Setting: 0.0 Hz
Range:
Proprieties:
Access groups via HMI:
SPLC
Description:
This parameter configures the speed threshold for lightweight detection. In other words, when the actual motor
speed is higher than or equal to the adjusted value, it enables the lightweight detection through the motor
current monitoring.
NOTE!
Setting this parameter in 0.0 disables the lightweight detection.
The lightweight detection operation diagram, considering that the crane horizontal motion has been configured
for two speed references obtained from the digital input logic, is presented next. The brake control logic has not
been considered.