Electrical Connections - Seneca Z-LINK2-LO Installation Manual

ELECTRICAL CONNECTIONS

Vac/Vdc
Vac/Vdc
RX
TX
GND
A (+)
B (-)
GND
Power supply and Modbus interface are available using the Seneca DIN rail bus, via the IDC10 rear connector, or the
Z-PC-DINAL2 accessory.
RS485 GND
RS485 A
RS485 B
MI00602-1-EN
Power supply
Terminals 2 and 3 can be used to provide the module with power supply as an alternative to
1
the connection using the Z-PC-DINx bus.
Power voltage must be between 10 and 40Vdc (any polarity) or between 19 and 28Vac.
2
The upper limits must not be exceeded in order to avoid serious damage to the module.
3
If the power supply source is not protected against overload, a safety fuse with a 1A max
permissible value must be installed in the power supply line.
4
RS232 serial port
The module has a serial port that can be configured with the SW2 switch.
5
The illustration shows how to complete connections.
6
The RS232 interface is fully settable.
RS485 serial port
7
The module has a serial port that can be configured with the SW2 switch.
8
The illustration shows how to complete connections.
N.B.: the indication of the RS485 connection polarity is not standardised and in some
9
devices may be inverted.
Power Suppl y AC / +
Power Suppl y AC / -
1
IDC 10
INSTALLATION MANUAL
Back connector (IDC 10)
The illustration shows the meanings of the various IDC10
connector pins if signals are to be sent via them directly.
4/4