Megmeet MV300 Series - Page 211

211
The auto current limiting function is always enabled in the acceleration/deceleration state, and whether
it will be enabled in constant speed operation depends on the auto current limiting action selection
(P97.09).
P97.09=0 indicates that the auto current limiting is disabled in the case of constant speed operation.
P97.09 = 1 indicates that the auto current limiting is enabled in the case of constant speed operation.
When the auto current limiting acts, the output frequency may change. For the situations requiring stable
output frequency at constant speed operation, the auto current limiting function shall not be used.
When the auto current limiting is enabled, because of the low setting of the current limiting level, it may
affect the overload capacity of the drive.
0: Disable the grounding short circuit detection upon power-up
1: Enable the grounding short circuit detection upon power-up
The grounding short circuit detection upon power-up means that the drive automatically detects whether
there is any grounding short circuit on the output side upon power-up. If any, the drive will display
“Er.GdF” fault, which can not be reset. Please power off, troubleshoot the detected grounding short circuit
on the output side and power up again. This function is available for drives of power of 7.5kW or below.
With the fault auto reset function, the faults in the operation can be automatically reset according to the
preset times and interval. When 0 is selected for the auto reset times, it indicates that auto reset is
disabled, and immediate fault protection shall be triggered.
 Note
1. The inverter module protection (Er.drv) and external equipment fault (Er.EFT) do not have auto reset
function.
2. During the reset interval, the output is locked at zero frequency. When the auto reset is completed, it will
automatically run in the speed tracking mode.
3. Be sure to use the auto fault reset function carefully, otherwise, human injury or property loss may be
caused.
P97.15 ~ P97.17 are the last three fault types, the specific type of fault please refer to function code
summary table.
Actual current at the 3rd faul
t
0.0~999.9
(
0.0A
)
P97.19
DC bus volta
g
e at the 3rd faul
t
0~999
(
0
)
P97.18
The 3rd faul
t
t
yp
e 0~50
(
0
)
P97.17
The 2nd faul
t
t
yp
e 0~50
(
0
)
P97.16
The 1s
t
faul
t
t
yp
e 0~50
(
0
)
P97.15
Auto reset interval time 2.0~20.0s
(
5.0s
)
P97.14
Auto reset times 0~100
(
0
)
P97.13
Groundin
g
short circuit detection u
p
on
p
owe
r
-u
p
0~1
(
1
)
P97.12