Veichi JT550 Series Manual page 8

Chapter 2 Mechanical Installation
1.5 Technical Specifications
Table 1.2 Technical Specifications of JT550
Item
Maximum frequency
Carrier frequency
Input frequency resolution
Control mode
Startup torque
Speed range
Speed stability accuracy
Torque control accuracy
Overload capacity
Standard
functions
Torque boost
V/F curve
Ramp mode
DC braking
JOG control
Simple PLC, multiply speed
running
Onboard PID
Auto voltage regulation
(AVR)
Overvoltage& Overcurrent
stall control
Standard
functions
Rapid current limit
320Hz
0.5kHz~16.0kHz
The carrier frequency is automatically adjusted based on the
temperature
Digital setting:0.01Hz
Analog setting:maximum frequency×0.025%
Voltage/Frequency(V/F) control
Sensorless Vector Control (SVC)
Feedback Vector Control (FVC)
G type: 0.5Hz/150% (SVC); 0Hz/180% (FVC)
P type: 0.5Hz/100%
1:100(SVC)
±0.5%(SVC)
±0.5% (FVC)
G type: 60s for 150% of rated current and 3s for 180% of
rated current
P type: 60s for 120% of rated current and 3s for 150% of
rated current
Automatic torque boost
Manual torque boost 0.1%~30.0%
Straight-line V/F curve
Multi-point V/F curve
Square V/F curve
Straight-line ramp
S-curve ramp
Four groups of acceleration/deceleration time with the range
of 0.0–6500.0s
DC braking frequency: 0.00Hz to max.frequency
Braking time: 0.0–100.0s
Braking action current value: 0.0%~100.0%
JOG frequency range: 0.00–50.00 Hz
JOG acceleration/deceleration time: 0.0–6500.0s
The system implements up to 16 speeds by using simple PLC
function or by using digital input signals.
It implements the closed-loop process control system easily.
The system maintains a constant output voltage
automatically when the grid voltage changes through the
permissible range.
The current and voltage are limited automatically during the
running process so as to avoid frequent tripping due to
overvoltage and overcurrent.
It decreases the overcurrent faults to the minimum and
ensures normal running of the AC drive.
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JT550 Series Inverter Manual
Specification
1:1000(FVC)
±0.02%(FVC)