Parameter Description
Parameters
187
5.
90
Parameters of Material Supply Interrupt Auto Detection
(P.637~P.640)
P.637 “Material supply interrupt auto
detection function selection”
P.638 “Material supply interrupt auto
detection minimum line speed”
P.639 “Material supply interrupt auto
detection error range”
P.640 “Material supply interrupt auto
detection judgment delay”
Parameter
Factory
setting
Setting range
Remarks
637
0
0~1
0
Material supply interrupt auto detection
function selection is inactive
1
Material supply interrupt auto detection
function selection is active
638
200.0m/min 0.1~6500.0m/min
Material supply interrupt auto detection
minimum line speed
639
10.0%
0.1%~50.0%
Material supply interrupt auto detection error
range
640
2.0s
0.1~60.0s
Material supply interrupt auto detection
judgment delay
<Setting>
•
The group of parameters is used for the inverter to automatically detect the material
supply interrupt. It is an auxiliary function. Only when line speed is use for curling radius
calculation can the inverter have the material supply interrupt detection basis. And not in
all situations can the material supply interrupt be detected effectively. If good result can
not be achieved after proper effort, set P.637 to 0.
• If the system line speed is higher than P.638, and the abnormal change of the curling
radius (the variation range of the curling radius calculated in the current corresponding to
the last one is too large) exceeds the setting range of P.639, and the lasting time of the
abnormal change of the curling radius exceeds the delay time set by P.640, the inverter
reports material supply interrupt failure (bEb).
