Configurable Safety System SAFEMASTER PRO
160
0265525 / 16.05.19 en / 101A
Operation in the “Mandatory Gate Opening” mode
Traces relative to “Guard Lock” block operation in the “Mandatory gate opening” mode
In “Mandatory gate opening” mode, the “Guard_lock” operator indicates an error condition if it does not detect
that the gate has been opened following a request to unlock the guard lock. This concept is highlighted in the
figure below (figure 59). In this case, the “Enable Error out” option has been selected in the diagram in figure 57,
so that the error is shown in the graph.
As previously described, the operator requests unlocking of the guard lock, but the door is never opened, and
this condition is indicated by the “FBK_GATE” signal, which stays at LL1. Thus, when the guard lock unlocking/
locking cycle ends, at time “E”, the “Guard_Lock” operator switches the status of the “ERROR” signal form LL0
to LL1.
Example of possible error in the “Mandatory Gate Opening” mode.
In this case the error condition
is generated because the gate has not been opened, even though a request has been sent to unlock/lock the
guard lock.
