Megmeet MV300 Series - Page 209

209
This function code defines the current threshold for the overload pre-alarm action. The setting value is the
percentage relative to the rated current (refer to the thousands place of P97.03).
This function code defines the output overload pre-alarm signal after the time that the drive output current
is greater than the overload detection level (P97.04) exceeds the setting time.
When the drive output current is higher than the overload detection level (P97.04), the pre-alarm
detection timing will be gradually increased. When the drive output current is lower than the overload
detection level, the pre-alarm detection timing will be gradually decreased. When the overload pre-alarm
status is enabled, it means that the drive overload detection timing time exceeds the overload pre-alarm
detection time. Schematic diagram for the overload pre-alarm detection function is shown as follows:
Fig. 6-78 Schematic diagram for the overload pre-alarm detection function
Compare the analog feedback quantity of the thermal sensor installed on the motor with the preset
protection threshold P97.06 of the sensor. If the feedback quantity is greater than the protection threshold
for more than 10s, the drive will report the motor over-temperature fault (Er.oHL). This value can be set
properly only when customers know the temperature change resistance value regularity of the motor
temperature detection.
P97.07 = 0 means the over-voltage stall action is disabled.
Ove
r
-volta
g
e
p
oint at stall 120.0~150.0%
(
140.0%
)
P97.08
Ove
r
-volta
g
e stall selection 0~1
(
1
)
P97.07
Motor ove
r
-tem
p
erature
p
rotection
p
oin
t
0~10.00V
(
10.00
)
P97.06
Overload
p
re-alarm detection time 0.0~60.0s
(
5.0s
)
P97.05