3 608 878 300 Tightening Technology | Bosch Rexroth AG 129/641
System 350 | 3 608 878 300/2019-03
AutoRestoreRun Auto restore run: Sequence of the automatic restore process
This signal is available from version V2.600 of the Rexroth Tightening System 350.
Input signal used for:
• Compact system (AutoRestoreRun)
• Communication unit (AutoRestoreRun)
This signal changes to "high" if the automatic restore is being carried out. The signal changes to "low" as
soon as the restore has been completed.
BoxNut LED0-7 Box Nut LED: Switches LED0-7 on in the socket tray
Input signal used for:
• Tightening channel (BoxNut LEDx)
Using this signal, a superior system informs the Tightening System350 on which LED(0…7) of the socket
tray has to be activated. Also refer to figure 6–72 on page 423.
BoxNut Sel0-7 Box Nut Selected: Socket 0-7 selected from socket tray
Input signal used for:
• Tightening channel (BoxNut Selx)
Using this signal, the socket tray informs the Tightening System 350 on which socket (0…7) has been
selected from the socket tray. Also refer to figure 6–72 on page 423.
Byps Bypass Deselects the tightening spindle
Input signal used for:
• Tightening channel (Byps)
• Communication unit in single-channel operation (CH x.y Byps)
A tightening spindle is bypassed with this signal. As long as the spindle is deselected, the respective
controller does not respond to the Cw and Ccw nutrunner start signals.
In this state, the controller x.y has set the NOK signal to "high". The Rdy and OK as well as the result
signals are "low". The left LED on the front of the SE flashes green. The spindle is only bypassed if an
application attempting to access the SE was executed.
The channel is only set to bypass mode if an application attempting to access the SE was executed.
The signal curves during use of the bypass functionality are described in section Behavior of FC Rdy and
FO x Rdy in ByPass mode.
Ccw Counter clock wise: Turns (unscrews) the screws in counterclockwise direction
Input signal used for:
• Tightening channel (Ccw)
• Communication unit in single-channel operation (CH x.y Ccw)
• Communication unit in application operation (FO x Ccw)
This signal starts the tightening program no. 99 Loosen in one tightening channel or all channels of the
selected tightening application. The start signal must remain "high" while processing is in progress;
otherwise, tightening or the tightening application is canceled with NOK and "Canceled by PLC". After
OK/NOK evaluation, the signal can be set to "low" with no effect on the application.
Program no. 99 (Loosen) is executed.
In the Tightening channel configuration, under Socket tray coding the required
Bit pattern or Decimal
coding for the socket tray used has to be configured.
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