Figure 5.19 Timing Chart For Up And Down Commands; Figure 5.20 Timing Chart For Dc Injection Braking Command - Samsung MOSCON-E7 User Manual

Output frequency
Upper limit
Accelerates to
lower limit
Lower limit
Forward/Stop
ON
Up command ON
ON
Down command
Speed agree signal
ON
Power Supply
ON
The speed Agree signal remains ON while the run command is ON and the motor is not
accelerating or decelerating

Figure 5.19 Timing chart for up and down commands

5. Parameters 5-47
F1.07=1
Same frequency
F1.07=0
Reference frequency reset
ON
MOSCON-E7 User's Manual
5-48
DC braking (Setting : 15)
OFF Normal operation
ON Applies DC injection braking if the inverter is stopped.
• This function is used to prevent the motor from rotating due to inertia
or external forces at stop.
• Inputting a run command or jog command (jog, clockwise jog, or
counterclockwise jog) clears the DC injection braking causing the
motor to start.
OFF ON
Run command
OFF ON
DC injection
Braking
command
DC
braking
Output frequency
C0.07 Min. output frequency

Figure 5.20 Timing chart for DC injection braking command

Speed search command 1 (Setting :16)
OFF Normal operation.
ON Starts a speed search from the output frequency command.
Speed search command 2 (Setting :17)
OFF Normal operation.
ON Starts a speed search from the pre-defined frequency.
• Only one of the search functions can be selected.
• When switching the operation from a commercial power supply and the
inverter or starting a coasting motor, this function can be used to run the
motor without tripping.
DC
braking
S0.01 Zero speed level