Technical item or function
Technical data
Control connections
(apply to boards OP-
TA1, OPTA2, and OP-
TA3)
Analog input voltage
0…+10 V, Ri = 200 kΩ, (–10 V…+10 V joystick control)
Resolution 0.1% (NXP: 12-bit, NXS: 10-bit), accuracy ±1%
Analog input current
0(4)-20 mA, Ri = 250 Ω differential
Digital inputs (6)
Positive or negative logic; 18–30 VDC
Auxiliary voltage
+24 V, ±10%, max volt. ripple < 100 mVrms; max. 250 mA
Dimensioning: max. 1000 mA/control box (power back-up)
Output reference voltage
+10 V, +3%, max. load 10 mA
Analog output
0(4)-20 mA; RL max. 500 Ω; Resolution 10 bit; Accuracy ±2%
Digital outputs
Open collector output, 50 mA/48 V
Relay outputs
2 programmable change-over relay outputs
Switching capacity (resistive): 24 VDC/8 A, 250 VAC/8 A, 125 VDC/0.4 A
Min.switching load: 5 V/10 mA
Protections
Overvoltage trip limit
The 240 volt drives: 437 V DC
The 500 volt drives: 911 V DC
The 690 volt drives: 1200 V DC
Undervoltage trip limit
Mains voltage 240 V: 183 V DC
Mains voltage 500 V: 333 V DC
Mains voltage 690 V: 461 V DC
Ground fault protection
If there is an ground fault in the motor or motor cable, only the AC drive
is protected.
Mains supervision
Trips if some of the input phases are missing
Motor phase supervision
Trips if some of the output phases are missing
Overcurrent protection
Yes
Unit overtemperature pro-
tection
Yes
Motor overload protection
Yes.
(1)
The motor overload protection activates at 110% of the full load current.
Motor stall protection
Yes
Motor underload protection
Yes
Short-circuit protection of
+24 V and +10 V reference
voltages
Yes
1
For the motor thermal memory and the memory retention function to obey the UL 508C requirements, use the system software version NXS00001V175, NXS00002V177 or
NXP00002V186 or a newer version. If an older system software is used, install a motor overtemperature protection to comply with the UL regulations.
Specifications
Operating guide | VACON® NXS/NXP Air-cooled
DPD00910G
158 | Danfoss A/S ©
2018.06