Mitsubishi Electric 800 Series Instruction Manual (Function page 415

NOTE
• During deceleration, inverter output is shut OFF when the frequency reaches Pr.13 Starting frequency or 0.5 Hz, whichever
is lower. For Pr.278 Brake opening frequency, set a frequency equal to or higher than the Pr.13 setting or 0.5 Hz.
• Pr.285 Overspeed detection frequency is valid under encoder feedback control (used with the Vector control compatible
option) even if a value other than "7 or 8" is set in Pr.292 Automatic acceleration/deceleration.
• Setting Pr.278 too high activates the stall prevention and may cause E.MB4.
• E.MB4 occurs when the time period calculated by adding Pr.280 to the acceleration time from Pr.13 to Pr.278 reaches or
exceeds 2 seconds.
Parameters referred to
Pr.13 Starting frequencypage 244
Pr.178 to Pr.189 (Input terminal function
Pr.190 to Pr.196 (Output terminal function
414
16. (A) Application Parameters
16.1 Brake sequence function
Pr.278
Pr.13
Brake opening request
(BOF signal)
selection)page 368
selection)page 332
Less than 2s
Output
frequency
(Hz)
Pr.280
Time
ON