EN
Using the power supply unit
SMP 301-07
14
7
Using the power supply unit
The power supply unit switches on as soon as an external power supply is available.
Only replace a plug-in fuse which has blown (fig.
1
5 – 10, page 2) with a plug-in
fuse of equivalent quality.
Please contact the manufacturer's branch in your country (see the back of the instruc-
tion manual for the addresses) or your retailer if the function cannot be restored by
switching on the fuses or replacing the plug-in fuse.
7.1
Using the surge protector (optional)
The optional surge protector is connected on the supply side of the power supply
unit. The surge protector disconnects the power supply line if the input voltage
exceeds approx. 270 V.
➤
Check whether the red LED (fig.
4
1, page 4) lights up.
✓
If the red LED lights up, this indicates that a voltage surge has occurred.
➤
Wait 20 – 30 minutes.
✓
The surge protector resets itself automatically as soon as the voltage returns to a
permissible value. Once the voltage has reached a permissible value, the red LED
remains lit up for 20 – 30 minutes.
SMP301-07-IO-7s.book Seite 14 Montag, 16. Januar 2017 1:08 13
