Vacon NX Active Front End User Manual page 27

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