Operating Instructions
Chapter 2 - Control Board Terminal Connections
Digital Input Terminal Connections
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Siemens Industry, Inc.
Siemens BT300 HVAC Drive
DPD01809
Smart Infrastructure
2019-05-29
Signal Range (P3.5.2.9) is used for programming the signal range of the analog input. Possible settings are 0
to 10 Vdc/0 to 20 mA or 2 to 10 Vdc/4 to 20 mA.
Figure 7: Analog Input 2 Terminal Connections.
Digital Input Terminal Connections
The BT300 HVAC Drive consists of six digital inputs built on Slot A. When using digital inputs, the DIP switch
must be correctly set and digital inputs correctly configured before enabling them.
Digital Inputs 1 through 6
See Figure 5 for the location of the DIO DIP switch. The DIP switch is set to the GND (Grounded) position at
the factory.
Figure 8: Digital Input Terminal Connections.
Analog Output Terminal Connections
The BT300 HVAC consists of one analog output built on Slot A. When using the analog output, the DIP switch
must be correctly set and the analog output correctly configured.
Analog Output 1
By default, Analog Output 1 is configured for a 4 to 20 mA signal. The wiring is shown below. See Figure 5 for
the location of the AO1 DIP switch. The DIP switch is set to the I (current) position at the factory.
Figure 9: Analog Output 1 Terminal Connections.