4101-2 Modular Controller
3-9
Controller case at one end only. Signal Earth not required. If the
Comms module is plugged into this Controller then connect CONN2
to both the Comms module and to CONN2 of next Controller - see
Comms module installation note.
Pin Function Connection
No connection connect cable screens to Controller case
RX Receive + to RX on Controller, TX on Comms module
RX Receive - to RX on Controller, TX on Comms module
TX Transmit + to TX on Controller, RX on Comms module
TX Transmit - to TX on Controller, RX on Comms module
0V Signal Earth no connection to Signal Earth required
Note: to pass emission regulations, the RS485 cable must pass
through the ferrite sleeve provided, see the chapter on “Earthing and
screening”.
Master/slave connection (no Comms module):
Connect CONN2 RX,
, TX and
pins on the master Controller
to their opposite pins on the slave Controller. Connect cable screens
to Controller case at one end only. Signal Earth not required.
Pin Function Connection
No connection connect cable screens to Controller case
RX Receive + connect RX on master to TX on slave
RX Receive - connect RX on master to TX on slave
TX Transmit + connect TX on master to RX on slave
TX Transmit - connect TX on master to RX on slave
0V Signal Earth no connection to Signal Earth required
Note: to pass emission regulations, the RS485 cable must pass
through the ferrite sleeve provided, see the chapter on “Earthing and
screening”.
CONN3
Function: general connections. The POWER and STATUS LEDs and
TAMPER switch for the cover are already connected when you receive
the Controller. Each function uses two terminals on the connector.
Pin Function
POWER LED Indicates power on motherboard via LED visible through cover.
STATUS LED Indicates processor running via flashing LED visible through cover.
TAMPER Input indicating cover is opened. Connected to switch on cover. Can
also be connected in parallel to switch on power supply unit cover.
Input is normally open circuit. Short circuit indicates cover removed -
alarm sent to computer.
PSU MON Input indicating mains failure. Input is normally closed circuit. Open
circuit indicates mains failure - alarm sent to computer.
To Next Page
Loading...