Danfoss VLT Midi Drive FC 280 Operating Instructions

Analog outputs
Number of programmable analog outputs 1
Terminal number 42
Current range at analog output 0/4–20 mA
Maximum resistor load to common at analog output 500 Ω
Accuracy on analog output Maximum error: 0.8% of full scale
Resolution on analog output 10 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
Maximum load 100 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 galvanically isolated from the supply voltage (PELV).
Relay outputs
Programmable relay outputs 1
Relay 01 01–03 (NC), 01–02 (NO)
Maximum terminal load (AC-1)
1)
on 01–02 (NO) (Resistive load) 250 V AC, 3 A
Maximum terminal load (AC-15)
1)
on 01–02 (NO) (Inductive load @ cosφ 0.4) 250 V AC, 0.2 A
Maximum terminal load (DC-1)
1)
on 01–02 (NO) (Resistive load) 30 V DC, 2 A
Maximum terminal load (DC-13)
1)
on 01–02 (NO) (Inductive load) 24 V DC, 0.1 A
Maximum terminal load (AC-1)
1)
on 01–03 (NC) (Resistive load) 250 V AC, 3 A
Maximum terminal load (AC-15)
1)
on 01–03 (NC) (Inductive load @ cosφ 0.4) 250 V AC, 0.2 A
Maximum terminal load (DC-1)
1)
on 01–03 (NC) (Resistive load) 30 V DC, 2 A
Minimum terminal load on 01–03 (NC), 01–02 (NO) 24 V DC 10 mA, 24 V AC 20 mA
1) IEC 60947 parts 4 and 5
The relay contacts are galvanically isolated from the rest of the circuit by reinforced isolation.
Control card performance
Scan interval 1 ms
Control characteristics
Resolution of output frequency at 0–500 Hz ±0.003 Hz
System response time (terminals 18, 19, 27, 29, 32, and 33) ≤2 ms
Speed control range (open loop) 1:100 of synchronous speed
Speed accuracy (open loop) ±0.5% of nominal speed
Speed accuracy (closed loop) ±0.1% of nominal speed
All control characteristics are based on a 4-pole asynchronous motor.
Specications Operating Instructions
MG07A102 Danfoss A/S © 11/2015 All rights reserved. 51
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Danfoss VLT Midi Drive FC 280 Specifications

General

Brand	Danfoss
Model	VLT Midi Drive FC 280
Category	DC Drives
Language	English