Ascon tecnologic AC3nP, Руководство по установке

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Chapter 3 - Electrical Connections
25
3-7-2 DO9... D16 (PNP) Source Type Digital Output (connector X7)
• The Digital Outputs number of the terminals are:
D09... D16
• The 8 output loads should not exceed 0.7 A each;
• In the drowing are connected only 2 loads as an example;
• Isolation: 800 V between the Digital Outputs and the
Main Electronics.
Note: For proper electrical connection, refer to Power supply for Digital Channels
(connectors X5 and X7).
3-7-3 OP1... OP4 SPST Relays/SSR Drive Digital outputs (connectors X2 and X3)
Relays:
• Rate: 2 A (for resistive loads);
• Isolation: 3 kV rms beween each channel and Power
Supply and between each channel and Main electronics.
SSR drives:
• Voltage output 0/12 Vdc;
• Respect the polarity shown;
• Output not isolated.
3- 8 Communications connections
On the CPU module are present all the communications ports. Connect the cable of the var-
ious interfaces as follows.
3- 8 -1 COM1 RS232/4 8 5 Serial Communications Port (connector X13)
• To connect an RS232/485 terminal (also for setup pur-
poses). Through this port, using the Modbus protocol
(master/slave) or serial ASCII the PLC can connect a
fieldbus network;
• Isolation from Main electronics: 800 V (optional).
• RS485 (COM1) line settings can be configured using
the specific DIP switches:
Upper side
Front
Digital Outputs
D09... D16
LOAD
LOAD
24 Vdc
+ -
Lower side
Front
OP1... OP4
SPST relays
connection
OP1... OP4
SSR drives
connection
C NO NO
C NO NO
LOAD
SSR
LOAD
SSR
X3 X2
+ + −
Switch Description Default
1
110
Ω
line termination
OFF
2 Not used
3 Line polarization Pull-Down OFF
4 Line polarization Pull-Up OFF
D−
D+ Rx
Tx
RS232 RS485
G N D
Upper side
Front
RS232/485 COM1 DIP sw connector
DIP switch settin g s