Troubleshooting; Changing The Collision Detection Sensitivity (Overcurrent) - Bosch rexroth 3842 559 921 Instructions De Service

Display Reason
F12 Max. temperature of the
output stages for 1st
or 2nd motor reached
F13 Max. temperature of the
output stages for 3rd
or 4th motor reached
F14 Max. position deviation
exceeded
F15 Motor blocked /
overloaded
F16 Number of control units
does not correspond
to the configuration
F17 Control unit overloaded
F19 Gap lifting module
connections e.g. 1 + 3;
module defective/not
detected
F20 Pressure wave sensor
is not detected (missing,
damaged)
F21 Control stops after
collision detection

12.1 Changing the collision detection sensitivity (overcurrent)

Button / display
or
P08
Button [1]
or
Button [1]
The solution
Wait until the output stages of the control unit have cooled
down.
Push a button to reset the error
The control unit automatically switches into the reference mode.
Referencing (see section "Referencing")
Reduce the load of the table or provide for easier movement
of the table frame.
Push a button to reset the error
Check whether all drives have been correctly connected to the
control unit. Push a button to reset the error Less control units,
see section "Resetting the number of connected lifting modules"
See F1-F4
Check whether all drives have been correctly connected to the
control unit. Push a button to reset the error
Remedy error. Further movement after push of a button.
Remove collision. Further movement after push of a button.
Instructions
Push shortly four times in a row
A tone sequence resounds and "PXX" is shown in the display
(A)
Push to select a menu item
Collision detection sensitivity
Push to select menu item
The display shows the current sensitivity:
2: Factory setting, highest sensitivity
3: Medium sensitivity
4: Lowest sensitivity
Select the desired setting
Push to confirm menu item
3 842 559 935/2019-08, MPS: Control unit, Bosch Rexroth AG

Troubleshooting

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