3 608 870 A47Nexo3 608 878 202 Tightening Technology | Bosch Rexroth AG 75/263
Nexo cordless Wi-Fi nutrunner | 3 608 870 A47/2017-05
ActEn Active Enable: Enables a single tightening process
This signal enables the tightening channel for a single tightening process.
After tightening, the tightening channel is disabled for the next tightening operation until ActEn changes
from "high" to "low" and back to "high" again. The tightening channel is then enabled for the next tight-
ening. This type of enabling only enables the channel for a single tightening.
The following table describes the enable function in the assignment of the PLC assignment table.
ActScan Active Scanner: Enables a single scan process
This signal enables the scanner integrated into the nutrunner for a single scan process.
After scanning, the scanner is disabled until ActScan changes from “High” to “Low” and back to “High”
again. The scanner is then enabled for the next scan. This type of enabling only enables the scanner for
a single scan process.
AppIn0-15 Application In Bit 0-15: Application-specific input signal
Application-specific signals are used to make special adjustments for customer requirements.
BoxNutLED0-7 Box Nut LED: Switches LED0-7 on in the socket tray
Using this signal, a superior system informs the Tightening System350 on which LED(0…7) of the socket
tray has to be activated.
BoxNutSel0-7 Box Nut Selected: Socket 0-7 selected from socket tray
Using this signal, the socket tray informs the Tightening System350 on which socket(0…7) has been se-
lected from the socket tray.
Ccw Counter clock wise: Loosen
This signal starts the tightening program No. 99 (Loosen) in a tightening channel. The start signal must
remain "high" while processing is in progress; otherwise, tightening is canceled with NOK and "Canceled
by PLC". After an OK/NOK evaluation has been made, the signal can be set to "low" without any effect
on tightening.
Program no. 99 (Loosen) is executed.
CcwIgnore Counter clock wise ignore: Ignores the Ccw switch
This signal ignores the position of the Ccw switch of the nutrunner. The program selected is always start-
ed.
Signal in PLC assignment table Enable function
En
1
)
1. The signal enables the nutrunner.
ActEn
2
)
2. This signal enables the nutrunner for a single tightening process.
Not applied Not applied
Nutrunner blocked.
Applied Not applied
The nutrunner is enabled if the signal En is at “High”.
Not applied Applied
The nutrunner is only enabled for a single tightening process by changing
the signal ActEn from “Low” to “High”.
Applied Applied
Nutrunner is only enabled if En is at “High” or the
ActEn signal changed from “Low” to “High”.
No zero point test is implemented when program no. 99 is started with the signal Ccw.
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