Adds 4 additional analog outputs to a gas detection system
Adds four channels of 4 - 20 mA analog output to a Modbus® RS-485 network configured with a QCC Quad Channel Controller or an FCS Flexible Control System Controller
Key Features
- Four 4-20 mA output channels
- Power LED indicator
- Modbus® RS-485 RTU communication
- Scaling and zoning capabilities supported by the ontroller
- Configurable default settings for any interruption in communication
- Standard water / dust tight, corrosion resistant enclosure
Description
The LNK-AO Analog Output peripheral device adds four channels of 4 - 20 mA analog output to a Modbus® RS-485 network configured with a QCC Quad Channel Controller or an FCS Flexible Control System Controller. The LNK-AO is designed to send a 4 - 20 mA signal to up to four devices such as a data / trend / logging system, a BAS or DDC or up to four VFDs.
The four 4-20 mA output signals are current sourced and can be independently scaled using the menu system on the controller. Each output can be assigned to an individual sensor or to a group of sensors through zoning configured within the controller. Communication with the controller is monitored and if interrupted a pre-configured default current will be output in each channel.
LNK-AO Analog Output Peripheral Device
Mechanical
Enclosure
ABS / Polycarbonate, corrosion resistant
Copper coated interior to reduce RF interference
Weight
400 g / 14 oz
Size
127 x 127 x 71 mm / 5.0 x 5.0 x 2.8 inches
User Interface
Indicator
LED green indicator for power
Input/Output
Output
Four 4-20 m A (2 - 10 volts is obtainable using a 500 Ohm resistor)
Communication
Modbus® RS-485 RTU
Electrical
Power Requirement
24 VDC, 3W, Class 2 (24 VDC supplied by the Controller)
Wiring
4-conductor shielded minimum 18 AWG stranded within conduit
Fuses
Thermal, resetting