Danfoss VLT AutomationDrive FC 300 Design Manual page 23

Product Introduction
Terminal no. Function
01, 02, 03 and 04, 05, 06 Two form C output relays. Maximum 240 V AC, 2 A. minimum 24 V DC, 10 mA, or 24 V AC, 100 mA. Can
be used for indicating status and warnings. Physically located on the power card.
12, 13 24 V DC power supply to digital inputs and external transducers. The maximum output current is 200 mA.
18, 19, 27, 29, 32, 33 Digital inputs for controlling the frequency converter. R=2 kΩ. Less than 5 V=logic 0 (open). Greater than
10 V=logic 1 (closed). Terminals 27 and 29 are programmable as digital/pulse outputs.
20 Common for digital inputs.
37 0–24 V DC input for safety stop (some units).
39 Common for analog and digital outputs.
42 Analog and digital outputs for indicating values such as frequency, reference, current, and torque. Analog
signal is 0/4 to 20 mA at a maximum of 500 Ω. Digital signal is 24 V DC at a minimum of 500 Ω.
50 10 V DC, 15 mA maximum analog supply voltage for potentiometer or thermistor.
Selectable for 0–10 V DC voltage input, R=10 kΩ, or analog signals 0/4 to 20 mA at a maximum of 200 Ω.
53, 54
Used for reference or feedback signals. A thermistor can be connected here.
55 Common for terminals 53 and 54.
61 RS-485 common.
68, 69 RS-485 interface and serial communication.
Table 3.3 Terminal Control Functions (without Optional Equipment)
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VLT AutomationDrive FC 300 Design Guide 90-1200 kW
MG34S202 - Rev. 2013-08-19
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