Omron MX2 Series - Page 434

7 Other Functions
7 - 98
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
(a) Edge operation (A056 = 00)
(b) Level operation (A056 = 01)
Example 4-a. During startup
Example 4-b. During startup
Example 5-a. During stop (with A053 setting)
Example 5-b. During stop (with A053 setting)
Example 6-a. During stop (A053 = 0.0)
Example 6-b. During stop (A053 = 0.0)
Note During free running and during DB operation, the output frequency is 0.
Use this method to control DC injection braking only by changing the set frequency.
Set the DC Injection Braking Selection (A051) to 02 (Operates only via set frequency).
• When A051 is set to 02, the external DC injection braking terminal function is disabled.
• If both the set frequency and the output frequency are equal to or lower than the A052 value with the
RUN command ON, the inverter starts DC injection braking. (Example 1-a)
• When the set frequency becomes +2 Hz higher than the A052 value, the inverter releases DC injec-
tion braking and returns to normal output. (Example 1-a)
• The inverter releases DC injection braking if the RUN command turns OFF with DC injection enabled.
(Example 1-b)
• If the set frequency starts from 0 via analog input etc., the inverter resets both the set frequency and
the output frequency and starts operation with DC injection braking. (Example 1-b)
• If the RUN command turns ON via analog input etc. with the set frequency larger than the A052
value, the inverter starts operation with the normal frequency. (Example 1-a)
7
7-9 DC Injection Braking Function
7-9-1 DC Injection Braking (DB)
Controlling DC Injection Braking Only via Set Frequency (A051 = 02)