Megmeet MV600 Series User Manual

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When the carrier wave frequency adjust automatically to select the actions, the drive can adjust the
carrier wave frequency automatically according to its internal temperature. At this moment, the actual
maximum working carrier wave frequency of the drive is limited by the carrier wave frequency (P12.02)
set by the function code.
Hundreds place: Modulation mode
0: Two-phase / three-phase switching
1: Three-phase modulation
Thousands place: Low frequency carrier limit
0: Disable
1: Enable
0: Manual selection
When P12.05 current loop proportional gain is selected and P12.06 current loop integral time takes effect,
the current loop gain can be adjusted by changing P12.05 and P12.06.
1: Calculate automatically (after tuning)
The current loop proportional gain and current loop integral time are automatically calculated in
identifying the motor parameter. The PI values are saved to P12.05 and P12.06 respectively after
identifying the parameter.
P12.05 and P12.06 are the PI regulator parameters of the current loop. Increasing KP or decreasing I of
the current loop can accelerate the dynamic response of the system; decreasing KP or increasing I can
improve the stability of the system.
 Note
For most applications, it is not necessary to adjust the PI parameter of the current loop. It is recommended to
change this parameter carefully.
Anti-trip function is used for defining whether the drive automatically performs low voltage compensation
in case of voltage decreasing or instantaneous under-voltage. The anti-trip operation shall be kept for the
drive via the load feedback energy by properly decreasing the output frequency.
When P12.07 is set as 0, disabled.
When P12.07 is set as 1, enabled and perform the compensation for the low voltage.
When performing the voltage compensation, if the setting of the frequency reduction rate P12.08 is too
large and the load instantaneous feedback energy is also too large, the over-voltage protection may be
incurred. If the P12.08 setting is too small and the load feedback energy is too small, the compensation
for the low voltage function may not be enabled. When adjusting, please reasonably select it according to
the load inertia and heavy or light load.
Pre-ma
g
netizin
g
time 0.0~10.0s
(
0.0
)
P12.09
Frequency reduction rate upon voltage compensation
0.00~99.99 Hz/s
(
10.00
)
P12.08
Anti-tri
p
function enablin
g
0~1
(
0
)
P12.07
Current loo
p
inte
g
ral time ACR-I 0.5~100.0ms
(
8.0
)
P12.06
Current loo
p
p
ro
p
ortional
g
ain ACR-P 1~5000
(
1000
)
P12.05
Current loo
p
g
ain selection 0~1
(
0
)
P12.04

Megmeet MV600 Series Specifications

General

Brand	Megmeet
Model	MV600 Series
Category	DC Drives
Language	English