Detcon X40-32-N7 - Manual (Page 34)

Model X40
Model X40 Instruction Manual Rev. 3.3 Page 28 of 64
3.0 I/O Connections
3.1 I/O Module Installation
NOTE
Module installation limits are as follows:
•
A maximum of two I/O modules may be installed on the N1P enclosure.
•
The quantity of I/O modules supported by the X40 NEMA 4 enclosures is
dependent on the configuration of the controller.
•
The X40-32-N7 enclosure does not accommodate module installations.
Modules for the N7 enclosure or any additional modules for the other enclosure types must
be mounted in a separate enclosure by the customer.
NOTE
The X40-N4X enclosures with alarm strobe and or horn have a minimum of one RL-4
module installed to power the alarms. This RL-4 should not be removed.
S
B
A
-
+ +
RS-485 and
Power Cable RS-485 and Power
Cable from Output
Terminal Blocks.
Add additional modules
as needed.
Female
Connector
Male
Connector
4-20mA
INPUT
COMM
M
S
D
L
S
D
4-20mA
INPUT
COMM
M
S
D
L
S
D
4-20mA
INPUT
COMM
M
S
D
L
S
D
4-20mA
INPUT
COMM
M
S
D
L
S
D
End Stop End Stop
S
B
A
-
+
S
B
A
-
Figure 28 I/O Module Installation
I/O modules are mounted on an industry-standard 37.5 x 7.5 mm DIN rail (See Figure 28). Install the first
I/O module at the end of the DIN rail nearest the male connector. Plug the male connector into the side of
the module. Slide it all the way to the end stop. Add additional modules next to the first module. When
installing additional I/O modules, make sure there is about 0.5 inch clearance on either side of the module
and snap the module onto the DIN rail (the 0.5” spacing is to allow for connector clearance). Once the I/O
module is snapped onto the DIN rail, slide it towards the adjacent module and assure that it firmly plugs
into it. Connect the RS-485 and power female connector to the last module installed on the DIN rail.
Secure the modules with an end stop.
NOTE
The male and female connectors must be plugged into modules on opposite ends of the DIN
rail.
If these connectors are not properly installed, communication with other RS-485
devices will not be possible.
NOTE
If no I/O modules are installed in the controller, the male connector must be plugged into
the female connector for the RS-485 to communicate.
NOTE
For addressable I/O modules or Modbus™ sensors that are located remotely from the
controller, General Cable Commodore (P/N ZO16P0022189) is recommended for serial and
power connections.