Load Station Series 300W
model : LN-300x-G6 Multi-Purpose Electronic Load   

 

Outline

Electronic loads, "Load Station series" is well adapted to various applications from R&D to Production use with its advantages of "High speed" and "Low operating voltage".

Model Max rating Slew rate
Voltage Current Power
LN-300A-G6 120V 60A 300W 20A / us
LN-300C-G6 500V 12A 300W 1A / us

 

Features
  • Loading power can be expanded by parallel operation
  • Low Input DC Voltage. Operated nearly from 0V.
  • Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP), External Control, Dynamic, Sequence, Short and Current Limit modes
  • Sequence mode up to 1024 steps
  • Standard Current Monitor and TRIG OUT
  • Standard USB interface. (GP-IB and I/O port optional)
  • Ripple noise measurement (Factory option only)
  • Dynamic mode : Up to 16 combinations of any Current & Time can be set.

 

Lower voltage operation
There is no operating limitation by Loading Voltage since this series sink load current as far as voltage difference exists.

Parallel operation (Booster function)
Up to 5 sets of Load Station series can be paralleled to expand loading power. It can configure max. 10kW load (LN-1000A X 10 sets). Different power modes can also be paralleled as far as they are same voltage rating.

Ripple & Noise measurement
With optional Ripple & Noise measurement function, it can configure as a power supply tester for power supply testing application.

Sequence function
Max. 1024 steps of sequence operation is possible from PC for various loading. Complicated loading condition can be simulated.

The Load Station series is equipped with various features suitable for evaluation and inspection applications.
External control mode (0 - 10V) can control load current externally, Current monitor for load current monitoring (not isolated), GPIB as well as USB interface.

Low inductance loading cable : Low-L Cable (Option)
The cables designed for low inductance. With this cable, voltage drop may be minimized. 50cm, 100cm and 200cm possible.

 

 

Application
  • Various loading use at test bench
  • Inspection or evaluation system

 

Order Information
LN-300A-G6 300W, 120V, 60A Electronic Load
LN-300C-G6 300W, 500V, 12A Electronic Load
RC-02A Ripple & noise measurement module (Factory option)
LL-050 Low-L cable(50cm)
LL-100 Low-L cable(100cm)
LL-200 Low-L cable(200cm)
LN-300x-G6/REC Test data for the model specified* LN-300x-G6 : model number
RC-02A/REC Test data for RC-02A
LX-OP01 GP-IB&DIDO option for Load Station

 

Specification
Electronic Load Section LN-300A-G6 LN-300C-G6
Max rating
Current 60A 12A
Voltage 120V 500V
Internal min resistance(*9) 17m ohm 250m ohm
Internal inductance(Typ)(*9) 250nH 2uH
Min operating voltage(*8, 9) 1V(60A) / 0.5V(30A) / 0.2V(12A) 3V(12A) / 1.5V(6A) / 0.7V(2.4A)
Rate power 300W
CC mode
Current range
(Setting range)
H 0 - 60A 0 - 12A
M 0 - 6A 0 - 1.2A
L 0 - 0.6A 0 - 0.12A
Nominal resolution(*1) H 5mA 1mA
M 0.5mA 0.1mA
L 0.1mA 0.02mA
Accuracy(*4) H +/- 0.2% of stg. +/- 25mA+Vin/Rin +/- 0.2% of stg. +/- 10mA+Vin/Rin
M +/- 0.2% of stg. +/- 12mA+Vin/Rin +/- 0.2% of stg. +/- 3mA+Vin/Rin
L +/- 0.2% of stg. +/- 6mA+Vin/Rin +/- 0.2% of stg. +/- 2mA+Vin/Rin
CR mode
Voltage range 20V 85V
Resistor range
(Setting range)
Current range:H 0.025 - 200 ohm 0.3 - 2.5k ohm
Current range:M 0.25 - 2k ohm 3 - 25k ohm
Nominal resolution(*1) Current range:H 4ms 333us
Current range:M 400us 33us
Voltage range 120V 500V
Resistor range
(Setting range)
Current range:H 0.075 - 600 ohm 0.9 - 7k ohm
Current range:M 0.75 - 6k ohm 9 - 70k ohm
Nominal resolution(*1) Current range:H 1.33ms 111us
Current range:M 133us 11us
Accuracy(*2, 4, 6) +/- 0.5% of Conv. Curr. +/- 0.2% of f.s. +Vin/Rin
CV mode
Voltage range
(Setting range)
H 0 - 120V 0 - 500V
L 0 - 20V 0 - 85V
Nominal resolution(*1) H 10mV 50mV
L 2mV 10mV
Accuracy +/- 0.2% of stg. +/- 0.2% of f.s.
Response time Fast/Slow (300us/10ms Typ)
CP mode
Power range Current range:H 0 - 300W
Current range:M 0 - 40W
Nominal resolution(*1) Current range:H 50mW
Current range:M 5mW
Accuracy(*4) +/- 2.5% of stg. +/- 1% of f.s. +/- (VinXVin)/Rin
External control mode
Current range
(Setting range)
H 0 - 60A 0 - 12A
M 0 - 6A 0 - 1.2A
Nominal resolution(*1) H 10mA 2mA
M 1mA 0.2mA
Accuracy(*4, 5) +/- 0.2% of stg. +/- 0.5% of f.s. +Vin/Rin
Control voltage 0 - 10V
Dynamic load mode
Control method Switching
Loading mode CC/CR/CV/CP mode
Setting period -20ms / -200ms / -2s / -20s / -60s
Period resolution 1us / 10us / 100us / 1ms / 10ms
Operating mode Continuous, Single
Slew rate
(Current range)
H 0.2 - 20A/us 0.01 - 1A/us
M 0.02 - 2A/us 0.001 - 0.1A/us
L 0.002 - 0.2A/us 0.0001 - 0.01A/us
Min load response time(*3) 500ns
Sequence mode
Loading mode CC / CR / CV / CP mode
Max steps 1024
Step duration 1ms - 10min
Duration resolution 1ms(1ms - 100ms) / 100ms(100ms - 10min)
Short mode
Short current (MAX) 60A 12A
Current limit setting
Current range
(Setting range)
H 0.3 - 60A 0.06 - 12A
M 0.03 - 6A 0.006m - 1.2A
Parallel operation
Master-Slave operation. One master unit can control up to 9 units of slaves of same voltage rating. For example: If the master unit is LN-300A-G6 then LN-300A-G6, LN-1000A-G6 may be connected as slave unit.

*1 : Nominal resolution: Approximated resolution of the range. / *2 : Conv.Curr: Ideal current value being calculated by [input / set R] / *3 : Min load response time: Minimum time required by the load when setting slew rate. / *4 : Rin: LN-300A : 50kohm(typ) LN-300C : 750kohm(typ) / *5 : External controlsetting accuracy: Setting accuracy is defined when external control voltage of 10V is fed. / *6 Setting accuracy in CR mode is valid when applied 10% or more voltage of the voltage range. / *7 : It may vary in accordance to the internal temperature. / *8 Minimum operating voltage vary according to the current value. / *9 At rear loading terminals.

 

Measuring section LN-300A-G6 LN-300C-G6
DC Voltage
Range H 120.00V 500.00V
L 20.000V 85.000V
Resolution H 10mV 10mV
L 1mV 1mV
Accuracy(*1) +/- 0.05% of rdg. +/- 0.05% of f.s.
Measuring time(*2) Approx. 100ms
DC Current
Range(*3) H 60A 12A
M 6A 1.2A
L 0.6A 0.12A
Resolution H 0.5mA 0.5mA
M 0.1mA 0.1mA
L 0.1mA 0.1mA
Accuracy(*1) H, M +/- 0.2% of rdg. +/- 0.2% of f.s.
L +/- 0.2% of rdg. +/- 0.5% of f.s.
Measuring time(*2) Approx. 100ms  
Power
Measuring method(*4) Calculation by [Voltage X Current]
Measuring time(*2) Approx. 200ms

*1 Guaranteed for 6 months at 23 +/- 5C, <70% RH / *2 Measurement time when set at same measuring mode and range. / *3 Current measurement range depends on load setting range. / *※4 Absolute value of the measurement.

 

General section LN-300A-G6 LN-300C-G6
Interface
USB Conforming to USB1.1
External control voltage 0 - 10V
Protection, Alarm
Over current protection Protect load section by limitting the current.
Over power protection Protect load section by limitting the power.
Over voltage alarm Generate alarm when over voltage is applied.
Temperature protector Generate alarm and cut off the output when overheaded.
Reverse connection alarm Generate alarm when reverse voltage is applied.
TRIG OUT
Output(*1) Photo coupler output
Output voltage CC1 +5V (Typ)
CC2 - CC16 0V (Typ)
CURRENT MONITOR
Current range(*2, 3) H, M 1V / 60A f.s. 1V / 12A f.s.
L 0.04V / 0.6A f.s. 0.04V / 0.12A f.s.
Output resistance 50 ohm
Accuracy(*4) H, M +/- 1% of Conv.Volt. +/-1 % of f.s.
L +/- 5% of Conv.Volt. +/- 3% of f.s.
General
Loading terminals on front & rear panel
Rated AC input AC85 - 264V 50/60Hz
Power consumption < 40VA (When in AC100V)
Operating temperature 5 - 40C
Cooling system Forced cooling fan
Dimensions 215(W) X 128.6(H) X 420(D) excluding projected part
Weight Approx. 6.5kg

*1 TRIG OUT: Isolated / *2 CURRENT MONITOR: Not isolated / *3 Full scale of the current monitor and rated current are different in current range High, Mid and Low. / *4 Conv.Volt means approximated value of [Measured current X (FS of current monitor / Rated current)]