Rockwell Automation MSR42 Curtains Configuration and Diagnostic Software Tool User Manual - Manual (Page 43)

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Light Curtain Multi-Function Control Module User Manual
Original instructions
Figure 57 shows the corresponding timing sequence for such an arrangement.
Figure 57: Timing sequence for “Two sensor T-type” muting
Muting of the safety light curtain is achieved only when muting sensor S1 and S2 are activated within the specified time t(sens). Since this muting mode
is bidirectional the muting sequence will also function in reverse (i.e. Muting sensor one before muting sensor two, or two before one are both allowed).
Both signals however may not arrive at the same time (t(sens) min.). The muting condition will stop if one of the muting sensors is not activated or if the
configured maximum muting time t(mute) is exceeded (muting time out).
The following parameters can be configured in the configuration window ( Figure 58) for “Two sensor T-type” muting.
Table 1 (* = a setting smaller or close to the total response time may influence the stability of the muting system)
A time t(sense) of 4 s is recommended in IEC 62046.
Parameter Default Value Max./Min. Values Possible Settings
T(sense) [Figure 57] 4 s
Min.: 50 ms
Max.: 10 s
Min.: N x 0.05 s
T(mute) [Figure 57] 5 min
Min.: 0 s
Max.: 10 days
(*)
T(msdel) [5.6.5] 50 ms
Min.: 0 ms
Max.: 2.55 s
N x 0.01 s
Muting lamp monitoring [5.6.2] yes yes/no
Mute dependant override [5.6.4] yes yes / no
T(mdo) [5.6.4] 5 s
Min.: 0 ms
Max.: 20 min
N x 5 s
Mute disable signal [5.6.7] no yes / no
Micro 400 interruption monitoring [5.6.8] no yes / no
T(espe) [5.6.8] 5 s
Min.: 0 ms
Max.: 10 s
N x 0.05 s (*)
A detailed description about muting, muting restrictions as well as hints for the installation are given in the
standard IEC 62046. Additional hints are mentioned in the attachment A7 of IEC 61496-1.