DOLD Safemaster Pro, Руководство пользователя

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Configurable Safety System SAFEMASTER PRO
152
0265525 / 16.05.19 en / 101A
Operation: General description
The
“Guard Lock”
operator analyses consistency between the status of the
“Unlock_cmd”
signal, the status of
a door/gate (E-GATE), if present, via the “Gate” signal, and the status of the electromagnet via the
“Lock_fbk”
signal. The main output,
“Output”
, is LL1 (TRUE) when the guard lock is closed and locked.
Operation in the "no Gate" mode
In this case, the user must select the “Gate not present” parameter.
The
Lock_Fbk
input must always be connected to a “LOCK
FEEDBACK” input element (see the LOCK FEEDBACK section)
that verifies the status of the guard lock electromagnet.
The
UnLock_cmd
input can be connected freely in the diagram
and determines the request to unlock the guard lock (when set
to LL1).
The
Output
signal is LL1 (TRUE) if the safety guard is locked.
When an unlock command is applied to the
UnLock_cmd
input, the
Output
signal is set to LL0 and the guard lock is
unlocked via the
LockOut
signal.
The
Output
signal can also be set to LL0 (FALSE) when error conditions are present (e.g. Feedback Time
exceeding the maximum allowed, etc.).
When the
UnLock_cmd
signal is detected, the
LockOut
signal unlocks the guard lock after the UnLock Time, a
parameter that can be defined by the user.
The time after which the electromagnet is activated depends entirely on the technical/physical characteristics of
the specific device and may therefore vary according to the type of guard lock used. Thus, since the
LockOut
signal controls the activation of this device, the status of the
Lock_Fbk
feedback signal will change at different
times, depending on the type of guard lock. This variability can be avoided by changing the value of the Feedback
Time parameter, which is the maximum delay accepted by the “Guard_Lock” operator before the
Lock_Fbk
signal switches status following a request to activate the electromagnet. Clearly, the following condition must be
met:
Feedback Time
≥
Electromagnet activation time