Inovance MD520 Series - 6.2 Technical Specifications

Technical Data
‑157‑
6.2 Technical Specifications
Item
Technical specifications
Control
perform
ance
Motor type
Asynchronous induction motors (IM), permanent
magnet synchronous motors (PMSM), and synchronous
reluctance motors (SynRM)
Control mode Sensorless vector control (SVC), feedback vector control
(FVC), and voltage/frequency (V/f) control
Asyn
chro
nous
motor
(V/f
control)
Supported
function
Energy saving control, overvoltage suppression,
overcurrent suppression, voltage dip suppression,
oscillation suppression, torque boost, slip
compensation, different V/f curve selection, V/f
separation, DC braking, random PWM, overexcitation
fast deceleration, and droop control
Control
perform
ance
Asyn
chro
nous
motor
(FVC)
Supported
function
Energy saving control, inertia auto‑tuning, acceleration
feedforward, droop control, master‑slave control, free
programming and self‑adaption of speed loop
parameters, load observer, overvoltage suppression,
voltage dip suppression, overexcitation fast
deceleration, automatic voltage adjustment (AVR
generator bus voltage control), DC braking, continuous
operation after smooth switchover to SVC upon encoder
abnormality, and FVC‑to‑SVC switchover at designated
frequency (This can avoid abnormal operation caused
by high‑speed jitter of the encoder.)
Supported
encoder
23‑bit communication encoder, ABZ encoder
(differential, collector, push‑pull), resolver, and sin‑cos
encoder
Starting
torque
200%
Speed step
response
Within 2 ms
Speed
stability
accuracy
0.02% when the motor and encoder are free from faults
Speed
fluctuation
0.05% when the motor and encoder are free from faults
Torque
control
accuracy
±2%
Flux
weakening
magnifica
tion
5