MD280/MD280N User Manual                                               Product Information 
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2.4 Technical Specifications 
Table 2-3 MD320 Inverter Technical Specifications 
Item Specifications 
Maximum 
frequency 
630Hz 
Carrier  
frequency 
0.5k to 16kHz; the carrier frequency will be automatically 
adjusted according to the load characteristics. 
Input 
frequency 
resolution 
Digital setting: 0.01Hz 
Analog setting: maximum frequency ×0.1% 
Control mode 
V/F control 
Vector flux control 
Startup torque  150% 
Speed 
adjustment 
range 
1˖50 
Speed 
stabilization 
precision 
±1% 
Overload 
capacity 
G model: 150% rated current 60s;   
P model: 130% rated current 60s;   
Torque hoist  Automatic torque hoist; manual torque hoist 0.1% to 30.0% 
V/F curve  Linear V/F, Multi-point V/F, and Square V/F 
Speed-up and 
Speed-down 
curve 
Straight line or S curve speed-up and speed-down mode;   
Two kinds of speed-up and speed-down time; Speed-up and 
speed-down time ranges between 0.0s to 3000.0min. 
DC brake 
DC brake frequency: 0.00Hz to maximum frequency; brake 
time: 0.0s to 36.0s, and brake current value: 0.0% to 100.0%. 
Basic function 
Jog control 
Jog frequency range: 0.00Hz to 50.00Hz; jog 
speed-up/speed-down time: 0.0s to 3000.0s. 
 
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