Functions
Leuze electronic MLC 530 28
Case 1: muting signal combination valid
If a valid muting signal combination is found to exist, the OSSDs remain in the ON state, even if the reset
button is released. The system restarts its normal operation; the muting indicator illuminates continuously
until the transport material has left the muting path.
Case 2: muting signal combination invalid
If muting sensors are misaligned, soiled or damaged, but also if pallets are incorrectly loaded, it is possible
that no valid muting signal combination will be ascertained. In these cases, the release of the OSSDs is
maintained only for as long as the reset button is pressed.
The system pauses during the muting override if the reset button is released or the maximum time for the
override (150 s) is exceeded.
Thereafter, the reset button must be pressed again and held down in order to continue the process.
A step-by-step override is possible in this way (“tip mode”).
4.9 Error reset
If an internal or external error is detected by the receiver, it goes into the interlock state (see chapter 11.1
„What to do in case of failure?“).
To reset the safety circuit to the initial state, reset the safety sensor according to the recommended
operational procedure (see table 4.3).
Table 4.3: Operational procedure for the error reset, dependent on the operating mode, RES and
connected reset button
NOTICE
Muting override not possible due to shortcomings in the application!
The causes of invalid muting combinations are to be investigated and remedied by a competent per-
son.
The duration of the override is limited to 150 s.
Operating
mode
RES Reset button con-
nected
Operational procedure
1, 2 and 3 deactivated No Switching off and on of the supply voltage
1, 2 and 3 deactivated Yes Acknowledging with the reset button or alterna-
tively switching the voltage supply on and off
4 and 6 activated Yes Acknowledging with the reset button or alterna-
tively switching the voltage supply on and off
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