Hog Slat Inc. Newton Grove, NC USA April 2023 REV IR 3 Grow-Flex™ Feed Systems 2. The HS589T Control Unit must be hardwired. See (Figure 2) for factory internal wiring diagram. 3. See below Figures 4 and 5 for external wiring for single phase and three phase operation. 4. When connecting wire from equipment to terminal strip, remove no more than ¼” of insulation from end of wire. Be sure there are no stray wire strands before inserting wire into terminal strip. Insert wire into terminal ¼” and tighten terminal strip set screw. 5. When using Hopper Level Control Switch, switch should be wired as “Normally Closed” contact. 6. If No Hopper Level Control Switch is to be used, Place jumper wire between terminals (5) and (6). 7. Use provided self tapping screws to provide bonding to Control Unit Switch Assembly and other connected equipment. 8. Pilot indentions are provided and located to allow for sufficient clearance for ½” non-metallic liquid tight strain relief cord connectors. DO NOT USE RIGID CONDUIT. 9. Care should be taken when drilling pilot holes to prevent damage to wires or other components. FIGURE 2 Adjusting Time Delay: The internal time delay is an ON delay. It is factory adjusted to approximately 30 seconds however this can be adjusted up to 300 seconds. Remove front cover from the HS589T and locate timer. Adjust the time dial to desired delay. Rotate clockwise to increase time delay. Each tick mark represents approximately 30 seconds. When troubleshooting a system it may be necessary to adjust the time delay to the minimum setting in order for the auger motor to come on with minimal delay. Once troubleshooting is complete, ALWAYS INCREASE DELAY TO DESIRED SETTING. It is recommended not to operate below 30 seconds to prevent short cycling of feed system motor. Note: When using drop tube switch controls that also have time delay, the delays will add together so it may be necessary to adjust drop tube switch and/or the HS589T control unit switch to obtain the total desired delay. FIGURE 3
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