DOLD Safemaster Pro, Руководство пользователя

Страница: 159 / 200

Configurable Safety System SAFEMASTER PRO
159
0265525 / 16.05.19 en / 101A
Example of operation in the “Mandatory Gate Opening” mode
In this example the user unlocks the guard lock with the “SWITCH” block. The
“LockOut”
signal controls a
“STATUS” output that controls the guard lock electromagnet, the status of which is detected by the
Lock_Fbk
input via the “LOCK FEEDBACK” input block.
“Output1” indicates the status of the operations.
The status of the safety gate is monitored by the “Gate” input via the “E-GATE” input block, the “Mandatory
Gate opening” parameter is selected.
The guard lock used in the example continues to be locked when the electromagnet is not energized. Therefo-
re the “Interlock spring” option must be selected.
Example of operation in the Mandatory Gate Opening mode

The Guard Lock operator parameters are shown on the right. On the left there is an example of an
application diagram. The electromagnet feedback consists of two contacts, one normally closed and one
normally open. When the electromagnet is energized the two contacts switch status. The gate feedback
consists of two normally closed contacts.
The example shows the traces relative to the operation. These are described in detail below:
1. At this time the user requests to unlock the guard lock. The “COMMAND” signal switches from LL0 to LL1, and
the “OUTPUT1” signal switches from LL1 to LL0.
2. At this time the electromagnet is activated with a delay of “Unlock Time”, after the command is sent. This delay
has been set to 0.5 seconds. The “ACTIV.” signal switches from LL0 to LL1.
3. At this time the electromagnet is actually activated, 95 ms after the command was sent. This delay is due to
the technical characteristics of the electromagnet. In any case, 95ms is less than 100ms (“Feedback Time”)
and so no errors have occurred.
4. At this time the guard is unlocked and the user opens the gate, the FBK_GATE signal switches from LL1 to LL0.
5. At this time the user closes the gate and the FBK_GATE signal thus switches from LL0 to LL1.
6. At this time the user releases the unlock gate command. The “Guard Lock” detects the gate closed condition,
via the FBK_GATE signal, and sends a command to lock the guard lock. The “ACTIV.” signal switches from
LL1 to LL0.
7. At this time the electromagnet is actually deactivated, approx. 95ms after the command was sent due to the
technical characteristics of the device. The guard lock is now locked.
8. As soon as the “Guard Lock” operator detects that the guard lock is locked and the gate is closed, the “OUTPUT1”
signal switches to LL1.
Operation in the “Mandatory Gate Opening” mode