Chapter 3 Operation
POWER CON
PCON-CB/LC
107
Command Torque Level Detection at Pressing
This is a function to detect whether the specified load is applied to the actuator by checking
the torque while in press-fitting operation when having a press-fitting process with the
pressing operation. If there is no resistance in press-fitting, the specified load would not be
applied, thus it is defined as the normal pressing is not conducted and an alarm can be
issued from PLC.
Torque Level Status (TRQS) Signal turns on when the current exceeds the value [%] set as
the “threshold” of the position data in the pressing operation range (except for approach
operation range) for the duration of judgment time
(Note 1)
or longer. It turns off once it has been
confirmed that the load has been removed and the current has dropped.
Load Output Judgment Status (LOAD) Signal turns on when the current exceeds the value
[%] set as the “threshold” of the position data in the pressing operation range (except for
approach operation range) and in the range set as the “position zone” in the position data for
the duration of judgment time
(Note 1)
or longer. It will not turn off even if the load has been
removed and the current has dropped. It retains on until the next movement command or till
the servo gets turned off.
(Note) It is set to LOAD when Parameter No. 51 is “0” while TRQS when “1”.
● Condition for TRQS to turn ON : in pressing operation range
Condition for LOAD to turn ON : in pressing operation range and also position zone
setting range
(Total time of pressing current to reach above threshold) – (Total time of pressing current
to get below threshold) ≥ 255ms (Parameter No.50)
Note 1 Establish the setting in Parameter No.50 Load Output Judgment Time
TRQS
LOAD
125ms - 5ms + 135ms ≥ 255ms
Load output judgment (LOAD output)
Pressing current being
dropped below threshold
Touched to work
Pressing Current
Pressing [%]
Threshold [%]
Time
125ms
5
ms 135ms
265ms
Turns on in position
zone setting range
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