Operation
2
021-
03
25
Reset Button
If the device is installed in explosion hazardous area, the reset button may be operated during
operation.
Rebooting Switch
Figure 4.1
To reboot the switch, push the reset button for at least 1 second.
Spurs Start-Up Management
Sequential Start-Up of Spurs
During start-up, the spurs are sequentially activated to minimize the initial high inrush current
demand for the auxiliary power supply. Therefore, the auxiliary power supply is less stressed
during the start-up phase, and its expected useful lifetime is increased.
Fold-Back Characteristics of the Spur Short Circuit Current Limitation
If a spur short circuit occurs, the spur current is switched off quickly. When the short circuit cur-
rent has been cleared, the spur current returns. If multiple simultaneous short circuit currents
occur, the current management system minimizes the additional current demand of the auxil-
iary power supply.
1
Reset button
Serial No:
yyyy
PA
RESET
PWR A
PWR B
STATUS
LNK/CHK
P1
P2
P3
P4
P1
P2
P3
P4
PWR A
PWR B
FA
IL
-
+
-
+
1
2
LNK/CHK
S1
S2
S3
-
+
S
-
+
S
-
+
S
-
+
S
S1
S2
S3
S4
S4
RESET
PWR A
PWR B
STATUS
LNK/CHK
P1
P2
P3
P4
1
