Encoder input accuracy (1–11 kHz) Maximum error: 0.05% of full scale
The pulse and encoder inputs (terminals 29, 32, 33) are galvanically isolated from the supply voltage (PELV) and other high-
voltage terminals.
1) FC 302 only.
2) Pulse inputs are 29 and 33.
3) Encoder inputs: 32=A, 33=B.
Digital output
Programmable digital/pulse outputs 2
Terminal number 27, 29
1)
Voltage level at digital/frequency output 0–24 V
Maximum output current (sink or source) 40 mA
Maximum load at frequency output 1 kΩ
Maximum capacitive load at frequency output 10 nF
Minimum output frequency at frequency output 0 Hz
Maximum output frequency at frequency output 32 kHz
Accuracy of frequency output Maximum error: 0.1% of full scale
Resolution of frequency outputs 12 bit
1) Terminal 27 and 29 can also be programmed as input.
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Analog output
Number of programmable analog outputs 1
Terminal number 42
Current range at analog output 0/4 to 20 mA
Maximum load GND - analog output less than 500 Ω
Accuracy on analog output Maximum error: 0.5% of full scale
Resolution on analog output 12 bit
The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, 24 V DC output
Terminal number 12, 13
Output voltage 24 V +1, -3 V
Maximum load 200 mA
The 24 V DC supply is galvanically isolated from the supply voltage (PELV), but has the same potential as the analog and digital
inputs and outputs.
Control card, 10 V DC output
Terminal number ±50
Output voltage 10.5 V ±0.5 V
Maximum load 15 mA
The 10 V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS485 serial communication
Terminal number 68 (P, TX+, RX+), 69 (N, TX-, RX-)
Terminal number 61 Common for terminals 68 and 69
The RS485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the
supply voltage (PELV).
Control card, USB serial communication
USB standard 1.1 (full speed)
USB plug USB type B plug
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
The USB ground connection is not galvanically isolated from protective earth. Use only an isolated laptop as PC connection to
the USB connector on the frequency converter.
Specications
VLT
®
AutomationDrive FC 301/302
46 Danfoss A/S © 05/2018 All rights reserved. MG33AT02
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