Kohler 20-3250 kW manual Controller Logic Specifications, Communication Ports

1.2.8Communication Ports

The main logic circuit board contains several communication ports for Modbusr and KBUS connections. See Figure 1-12. Refer to the List of Related Materials in the Introduction for corresponding communication installation information.

1 2 3 4 5

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ADV-6533-A

1.P19—unused isolated connection (ISO2), RS-485 port

2.P21—KBUS isolated connection (ISO1), RS-485 port

3.P18—KBUS or Modbusr, RS-232 port (Monitor III connection)

4.P20—Modbus, RS-485 port (Monitor III connection)

5.P22—ECM connector

6.Main logic circuit board

Figure 1-12 Main Logic Circuit Board Communication Ports (Top View of Circuit Board)

Modbusr is a registered trademark of Schneider Electric.

TP-6200 10/12

1.3 Controller Logic Specifications

The controller logic specifications section is an overview of the various features and functions of the controller. Certain features function only when optional accessories are connected. See Section 2, Operation, for details.

The default selection time delays and relay driver outputs (RDOs) are factory set and adjustable with the programming mode on (Menu 14). Some data entries require using a PC in the Remote Programming mode. See the monitor software operation manual for details.

Inhibit Time Delay. The inhibit time delay is the time period following crank disconnect during which the generator set stabilizes and the controller does not detect a fault or status event. Select the desired inhibit time delay from 0 to 60 seconds.

TIme Delay (Shutdown or Warning). The time delay follows the inhibit time delay. The time delay is the time period between when the controller first detects a fault or status event and the controller warning or shutdown lamp illuminates. The delay prevents any nuisance alarms. Select the desired time delay from 0 to 60 seconds.

1.3.1Status Event and Fault Specifications

The table starting on the next page contains all status events and faults with ranges and time delays including items that do not have adjustments.

Note: The engine ECM may limit the crank cycle even if the controller is set to a longer time period.

Section 1 Specifications and Features 23