121022 v1.02-RiA
Operating instructions SG-RS 309-2
Page 10/23
Function
Reset pulse
control
Reset
no
yes
Fault
no
yes
yes
no
ON
OFF
OSSD
If the reset button is pressed, the OSSDs return to the ON state again after a de-
lay t
w
.
Reset pulse
button
Reset
No
Yes
Fault
No
Yes
Yes
No
ON
OFF
OSSD
The control unit monitors the reset button and detects a malfunction via the actu-
ation period. The conditions for this are:
-
Min. / max. actuation period 70 ms / 19 s
If the actuation period is shorter than the minimum permitted, no reset will take
place.
If the max. actuation period is exceeded, the control unit changes to the “Fault /
System error” mode (see
Troubleshooting and remedies
).
The control unit works with a manual reset function. If the protective device stops
being activated, the OSSDs of the control unit remain in the OFF state. This pre-
vents the machine from restarting. Only a “Manual reset” command will change
the state from OFF to ON.
Manual reset