SRSE-2NO SAFETY RELAY MODULE
INDUSTRIAL/SRSE-2NO SAFETY RELAY MODULE
7
INPUT AND OUTPUT
THE RESTART COMMAND
The RESTART command allows SRSE-2NO to manage manual operation.
The RESTART command must be installed outside the danger area in a position where the danger area
and the entire work area concerned are clearly visible.
It must not be possible to reach the control from inside the danger area.
The RESTART command must be sent to SRSE-2NO connecting
terminal 4 to 24VDC.
The contact used for the RESTART command must be able to switch
a voltage of 24VDC and a current of 10mA (guaranteeing a closing
time>100ms).
The whole SYSTEM RESET TIME is obtained adding the reset time
of external contactors K1-K2 to the reset time of SRSE-2NO.
t>100ms
K1K2 FEEDBACK INPUT
Using the K1 and K2 auxiliary safety contactors with guided contact safety type, it is necessary to connect the
+24VDC to the
K1 K2 FBK
through the series of the K1-1 and K2-1 N.C. control contacts.
The control of the correct switching of K1 and K2 is performed with a delay of 300ms.
If required by the application, the response time of the external contactors must be verified by an
additional device.
When the K1-1 and K2-1 N.C. control contacts are not used (or no control is provided) it is mandatory to
connect the terminal 11 (K1K2 FEEDBACK) to terminal 12 (SYSTEM STATUS).
SYSTEM STATUS OUTPUT
The SYSTEM STATUS output reports exactly the output safety relays condition:
•
When the output relays are opened, the SYSTEM STATUS reports 0VDC.
•
When the output relays are closed, the SYSTEM STATUS r24VDC.
