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Controls
Terminal number
Function
01, 02, 03 and 04, 05, 06
2 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 on the power card.
12, 13
24 V DC 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. The
analog signal is 0/4 to 20 mA at a maximum of 500 Ω. The 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
RS485 common.
68, 69
RS485 interface and serial communication.
Table 14.1 Terminal Control Functions (without Optional Equipment)
MG37N102
Design Guide
Danfoss A/S © 6/2016 All rights reserved.
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