Technical information vacon • 61
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5
Control
connections
Analogue input voltage
0…+10 V, R
i
= 200 k.
Resolution 0.1%, accuracy ±1%
Analogue input current
0(4)…20 mA, R
i
= 250 differential
Digital inputs (6)
Positive or negative logic; 18-30 V
DC
Auxiliary voltage +24 V, ±15%, max. 250 mA
Output reference voltage +10 V, +3%, max. load 10 mA
Analogue output (1)
0(4)…20 mA; R
L
max. 500 ; Resolution 10 bit;
Accuracy ±2%
Digital outputs Open collector output, 50 mA / 48 V
Relay outputs
2 programmable change over relay outputs
Switching capacity: 24 V
DC
/ 8 A, 250 V
AC
/ 8 A,
125 V
DC
/ 0.4 A.
Min. switching load: 5 V / 10 mA.
Protection
Overvoltage protection
Undervoltage protection
NXA_5: 911 V
DC
; NXA_6: 1200 V
DC
NXA_5: 333 V
DC
; NXA_6: 460 V
DC
Earth fault protection
In case of an 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.
Over current protection Yes
Unit over temperature
protection
Yes
Short circuit protection of
+24 V and +10 V reference
voltages
Yes
Table 18. Technical specifications for active front-end (AFE) drives