NPS2400
User’s Manual
Rev. 3.0
– 17.02.2015
Page 36/38
7 Technical specification
Parameter/Model
NPS2400-24
NPS2400-48
NPS2400-72
NPS2400-170
7.1 Input
Wiring
3-phase, protective Earth
Rated Input Voltage, frequency
3x400…500 VAC , 47…63 Hz or DC
Input Voltage Range
340…550 VAC / 520…750 VDC
Input current @ full load: @400VAC
@500VAC
4.5A
3.5A
4.5A
3.5A
4.5A
3.5A
4.5A
3.5A
Inrush current
<10A, active inrush current limiter
Power factor
> 0.92 @ full load
External
protection on AC line
3x10A curve C circuit breaker, for DC - ask factory
Surge protection:
it is strongly recommended to provide external surge
arresters according to local regulations
.
Input protection
Active surge protection according to VDE0160
Input overvoltage (auto restart)
Input undervoltage (auto restart)
Phase loss (reduced output power)
Internal PFC circuit failure (latched shutdown)
7.2 Output
Nominal output voltage
24V
48V
72V
170V
Output voltage adjust range
11.5
V…29V
23
V…56V
50
V…86V
85
V…175V
Nominal output current
100A
50A
33A
14A
Maximum output current
150A / 5 sec
75A / 5 sec
50A / 5 sec
21A / 5 sec
Line and load regulation
<1%
Output Ripple and noise
< 200mVpp
Hold Up time
>10ms independent from line voltage
Output protections
Overload (OL) and short circuit (either constant current or hiccup mode at
150% load, with user settable OL threshold)
Overvoltage (active, with latched shutdown)
Operating modes
Overboost: allows 150% output power for max. 5sec, then off for max. 10sec
Constant current: adjustable between 10% and 100% load
Battery charger: for lead acid and NiCd/NiMH
(only on “-24” and “-48” models)
7.3 Interface
User Interface
LCD display 16 x 2 characters, multi language
4 pushbutton keys for various commands and menu navigation
Status Signals
“DC OK” green LED
“Alarm” red LED, indicating a fault
Alphanumeric LCD display
Relay dry contact
Contact rating: 24V/1A
Activated for various functions:
“DC OK”: active when 0.9*Uset<Uout<1.1*Uset
“AC OK”: active when Uin>Uin_min and Uin<Uin_max
(Uin_min, Uin_max= user settable)
“OVERLOAD”: active when I out> Iout max (user settable)
“OVERTEMPERATURE”: active when the internal temperature
is exceeding the Tmax value.
“CHARGE COMPLETE”: active when the battery charge is
finished (only on 24V and 48V models)
Optoisolated output current remote
measurement
0…10V voltage output for output current 0…100% In
4…20mA current output for output current 0…100% In
Measurements accuracy
Input Voltage
±5% -
±5VAC
±5% -
±5VAC
±5% -
±5VAC
±5% -
±5VAC
Output Voltage
±1% -
±0.3V
±1% -
±0.6V
±1% -
±0.9V
±1% -
±1.8V
Output Current
±2% -
±2A
±3% -
±2A
±3% -
±2A
±4% -
±2A
Remote output current
±5% -
±2A
±5% -
±2A
±5% -
±2A
±5% -
±2A
Internal temperature
± 4°C
± 4°C
± 4°C
± 4°C
External temperature
± 4°C
± 4°C
± 4°C
± 4°C
