Danfoss VLT AutomationDrive FC 302 Design Manual page 48

Specifications
+24 V
18
37
Functional
isolation
RS485
Illustration 7.1 PELV Isolation
Pulse inputs
Programmable pulse inputs
Terminal number pulse
Maximum frequency at terminal 29, 33 (push-pull driven)
Maximum frequency at terminal 29, 33 (open collector)
7 7
Minimum frequency at terminal 29, 33
Voltage level
Maximum voltage on input
Input resistance, R
Pulse input accuracy (0.1–1 kHz)
Analog output
Number of programmable analog outputs
Terminal number
Current range at analog output
Maximum resistor load to common at analog output
Accuracy on analog output
Resolution on analog output
The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS485 serial communication
Terminal number
Terminal number 61
The RS485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the
supply voltage (PELV).
Digital output
Programmable digital/pulse outputs
Terminal number
Voltage level at digital/frequency output
Maximum output current (sink or source)
Maximum load at frequency output
Maximum capacitive load at frequency output
Minimum output frequency at frequency output
Maximum output frequency at frequency output
Accuracy of frequency output
Resolution of frequency outputs
1) Terminals 27 and 29 can also be programmed as inputs.
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
46
VLT® AutomationDrive FC 302
PELV isolation
Control
Mains
High
Motor
voltage
DC-bus
i
Danfoss A/S © 01/2018 All rights reserved.
See Digital Inputs in chapter 7.7 Control Input/Output and Control Data
29, 33
110 kHz
5 kHz
4 Hz
28 V DC
Approximately 4 kΩ
Maximum error: 0.1% of full scale
0/4–20 mA
500 Ω
Maximum error: 0.8% of full scale
8 bit
68 (P, TX+, RX+), 69 (N, TX-, RX-)
Common for terminals 68 and 69
27, 29
0–24 V
40 mA
1 kΩ
10 nF
0 Hz
32 kHz
Maximum error: 0.1% of full scale
12 bit
MG38C202
2
1
42
2
1)