Vacon NXI Series - Page 20

18 • vacon technical data
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4
Safety
EN 50178 (1997), EN 60204-1 (1996), EN 60950 (2000, 3
rd
edition) (as relevant), CE, UL, CUL, FI, GOST R, IEC 61800-5;
(see unit nameplate for more detailed approvals)
Control
connections
Analogue input voltage
0…+10V, R
i
= 200k, (–10V…+10V joystick control)
Resolution 0.1%, accuracy ±1%
Analogue input current
0(4)…20 mA, R
i
= 250 differential
Digital inputs (6)
Positive or negative logic; 18…30VDC
Auxiliary voltage
+24V, ±15%, max. 250mA
Output reference voltage
+10V, +3%, max. load 10mA
Analogue output
0(4)…20mA; R
L
max. 500; Resolution 10bit;
Accuracy ±2%
Digital outputs
Open collector output, 50mA/48V
Relay outputs
2 programmable change-over relay outputs
Switching capacity 24VDC/8A, 250VAC/8A, 125VDC/0.4A
Min.switching load: 5V/10mA
Protections
Overvoltage trip limit
Undervoltage trip limit
NXI_5: 911VDC; NXI_6: 1200VDC
NXI_5: 333VDC; NXI_6: 460 VDC
Earth fault protection
In case of earth fault in motor or motor cable, only the
inverter is protected
Output phase supervision
Trips if any of the output phases is missing
Overcurrent protection
Yes
Unit overtemperature
protection
Yes
Motor overload protection
Yes
Motor stall protection
Yes
Motor underload
protection
Yes
Short-circuit protection of
+24V and +10V reference
voltages
Yes
Table  4-3 . Technical information
Structure
Inom (output)
Motor cos
Idc (input)
FR4
4.3
0.79
4.4
9
0.82
9.6
12
0.83
1.0
FR6
16
0.84
17.5
22
0.85
24.4
31
0.85
34.3
38
0.86
43
45
0.86
50
FR7
61
0.86
68
72
0.87
82
87
0.87
99
105
0.87
119
FR8
140
0.88
160
Table 4- 4 DC currents of Vacon NX, supply voltage 465 - 800Vdc