Omron MX2 Series

1 Overview
1 - 40
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
When PM Motor Starting Method Selection (H123) is set to 01 (Initial pole position estimation enabled),
the DC injection braking power and the starting current are changed as shown in the following figure.
For magnetic pole positioning of PM motors, refer to PM Motor Initial Pole Position Estimation in 6-8-6
Adjustment of PM Motor Mode Settings on page 6-64.
3G3MX2-E
3G3MX2-EV2
During Startup DC Injection Braking Time (A058),
Startup DC Injection Braking Power (A057) is output;
after that, during PM Motor Starting Time (H118), PM
Motor Starting Current (H117) is output.
Braking
power
Practically
H117=A057
H117
A057
Normal
operation
Time
If the PM Motor Starting Current (H117) and DC
Injection Braking Power (A057) values are different, the
larger value will be output.
Braking
power
H117
A057
Normal
operation
Time
The PID variable range limit is now effective even with the PID reverse output enabled setting. Refer to
7-5-12 PID Function on page 7-44 for the PID variable range.
3G3MX2-E
3G3MX2-EV2
When the PID Selection (A071) is set to 02
(Enabled (Reverse output enabled)), the
PID variable range limit function is disabled.
Even when the PID Selection (A071) is set
to 02 (Enabled (Reverse output enabled)),
the PID variable range limit function is
enabled.
For the 3G3MX2-EV2 Series Inverter, the Increment and Decrement keys are replaced with a Jog dial.
Operation
3G3MX2-E
3G3MX2-EV2
Increasing the
Press the Increment key. Press and hold the
Rotate the Jog dial clockwise. Operate it
parameter number
or the set data
key to accelerate the change.
continuously to carry the digit.
*1
value
Decreasing the
Press the Decrement key. Press and hold
Rotate the Jog dial counterclockwise. Oper-
parameter number
or the set data
the key to accelerate the change.
ate it continuously to carry the digit.
*1
value
*1. Refer to 7-6-12 Jog Dial Sensitivity on page 7-61 for how to adjust the carry sensitivity.
Changes in DC Injection Braking Power during Magnetic Pole
Positioning and Starting Current of PM Motors
1
1-5 Comparison with Previous
Model
1-3-2 External Dimensions
Initial pole
position
estimation
DC injection
braking
A058
H118
DC injection
braking
PM
magnetic
pole
positioning
A058
H118
PID Variable Range Limit Function
How to Operate Parameters and Set Data