Kohler — Decision-Maker 6000 Controller Connection Procedure
Installation · Decision-Maker 6000 Generator Set Controller
From a Kohler service manual — check it applies to your exact model before use.
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Before you start
- Hazardous voltage. Will cause severe injury or death. Disconnect all power sources before opening the enclosure.
Procedure
- Press the OFF button on the controller.
- Disconnect the power to the battery charger, if equipped.
- Disconnect the generator set engine starting battery(ies), negative (--) lead first.
- Turn off and disconnect the power to all devices in the system.
- Open the enclosure and locate the connection ports as shown in Figure 7-1 and Figure 7-3.
- For RS-232 connections, use connector P18. For RS-485 connections, use Modbus RS-485 connector P19 or P20.
- Close the controller enclosure.
- Verify that the controller is OFF.
- Reconnect the generator set engine starting battery, negative (--) lead last.
- Reconnect power to the battery charger, if equipped.
- Proceed to Section 13 to configure the controller's communication parameters.
Specs & values
- P19 RS-485 Amazon eBay $499.00 FridayParts $92.25 isolated (DPS, PC with SiteTech, Ethernet converter)
- P20 RS-485 Amazon eBay $499.00 FridayParts $92.25 non-isolated (RSA, Ethernet converter)
- P18 RS-232 Amazon eBay $145.00 FridayParts $92.25 non-isolated (PC with Monitor III)
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.