Vacon NX Active Front End User Manual

Active Front End (AFE) vacon • 25
24-hour support +358 (0)201 212 575 • Email: vacon@vacon.com
4
Control connections
Analogue input voltage 0…+10 V, R
i
= 200 kΩ.
Resolution 0.1%, accuracy ±1%
Analogue input current 0(4)…20 mA, R
i
= 250 Ω differential
Digital inputs (6) Positive or negative logic; 18…30 VDC
Auxiliary voltage +24 V, ±15%, max. 250 mA
Reference voltage,
output
+10 V, +3%, max. load 10 mA
Analogue output (1) 0(4)…20 mA; R
L
max. 500 Ω; Resolution 10 bit;
Accuracy ±2%
Digital outputs Open collector output, 50 mA / 48 V.
Relay outputs 2 programmable changeover relay outputs
Breaking capacity: 24 VDC / 8 A, 250 VAC / 8 A, 125
VDC / 0.4 A.
Min. switching load: 5 V / 10 mA.
Protection
Overvoltage protection
Undervoltage protection
NXA_5: 911 VDC; NXA_6: 1200 VDC
NXA_5: 333 VDC; NXA_6: 460 VDC
Earth fault protection In case of earth fault in the supply cable, the earth
fault protection only protects the NX-AFE itself.
Input phase monitoring Trips if any of the input phases is missing.
Overcurrent protection Yes
Unit overheat protection Yes
Short-circuit protection
of +24 V and +10 V
reference voltages
Yes
Table 4. Technical specification for Vacon
®
NXA Active Front End unit

Vacon NX Active Front End Specifications

General

Brand	Vacon
Model	NX Active Front End
Category	Controller
Language	English