Pcm-310 main board, Input protection f1 – Lenze PCM 310 PCMatic Slot Controller Benutzerhandbuch
Seite 40
38
2.2.
PCM-310 main board
The main board contains the following elements:
•
Input
protection
F1
•
Serial
interface
COM1
X1
•
Serial
interface
COM2
X2
•
Ethernet
interface
X11
•
Fieldbus diagnosis interface
X14
•
Address
set
adjustment
J1,
J2
•
Battery
for
CMOS-RAM
BAT
The main board PCM-310 is equipped with 2 external interfaces:
•
Connection to Shuttlebox
X10
•
Fieldbus
interface
X15
F1
Flash disk
Fieldbus
module
X2
CPU core
BAT
CMOS
X14
J1,J2
X11
X10
X15
X1
1
1
1
SW1
PCM-310 Main board
2.2.1. Input protection F1
The PC extension card is protected against incorrect polarity of the external supply current and
overload. If the polarity of the incoming current is incorrect or the internal transformer is overloaded,
the input protection is activated (protective factor +24 V DC). The input protection must have the
following values:
•
250
V
•
2.5
A
•
Moderately slow-acting (M)
•
Dimension: 5 x 20 mm