Products Catalog

The relay output unit is a control device used for automated control of aeration fans in the Crop-Protector™ system. The units are controlled via the Aeration Control software that uses moisture sensor data to determine when and for how long an aeration fan should run to optimize grain moisture content. Each unit has eight relays with the relay status of open or closed visible on the diodes. Every unit has an individual Modbus address and can be installed where the aeration fans have their power start/stop relays to minimize wiring. One relay will normally control all of the aeration fans for a single bin, allowing for up to eight bins to be controlled via a single relay box. The relay output unit can also be used to control head space ventilation fans, either directly or via a help-relay. Data output (via RS-485 Modbus) directly to a PLC is also available.

Features:
Control device used for automated control of aeration fans and roof ventilation
Unit has 8 relays with each relay’s status visible on the diodes
Crop-Protector™ Aeration Control software indicates need for aeration
Manual or automated fan operation via RS-485 Modbus
Status can be monitored via Aeration Control software on a PC or via the Cloud

Communication: Via RS-485 Modbus to Crop-Protector™ Dashboard

Operation: Automatic or semi-automatic mode as determined in Aeration Control software

DIN Rail Unit:   
• 8 relays with normally open (NO) and normally closed (NC) contacts
• Maximum switching power 12 – 24 VDC: 3A and 230 VAC: 10A
• 12 VDC, 600 mA power supply
• Modbus protocol, addressed from 01 to 99 using Crop-Protector™ software
• RS-485; up to 99 relay units in series, up to 3,937 ft. (1200m) on CAT-5e cable

Cabinet Unit:   
C• lass IP-65 die-cast aluminum box 6.7 in. x 9.45 in. x 3.15 in. (170mm x 240mm x 80mm)
• 100 – 240 VAC power supply, maximum 10 w with power on indicator