Stopping Method - Saftronics FP5 Series User Manual

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Chapter 3 - Programming Features
FP5/GP5 Operation
Stopping Method (n004, Stopping Method)
This function selects the stopping method suitable for the particular application.
LED Setting
0
1
2
3
· Deceleration to Stop (n004 = "Ramp to STOP")
Upon removal of the FWD (REV) run command, the motor decelerates at
a deceleration rate determined by the time set in deceleration time 1
(n019) and DC injection braking is applied immediately before when the
minimum output frequency (n016) is reached. If the deceleration time is
short or the load inertia is large, an overvoltage fault (OV) may occur dur-
ing deceleration. In this case, increase the deceleration time or install an
optional braking resistor .
Braking torque: w/o braking resistor, approx. 20% of motor rated torque
· Coast to Stop (n004 = "Coast to STOP")
Upon removal of the FWD (REV) run command, the motor coasts.
70
LCD Setting
Ramp to STOP Deceleration to stop (factory default)
Coast to STOP Coast to stop
Coast w/Timer 1 Coast to stop with timer 1 (run command cycle)
Coast w/Timer 2 Coast to stop with timer 2 (auto-start after time out)
Output Frequency
Min. Output Frequency (Frequency at
DC Injection Braking Start - n016)
Factory Default: 1.5Hz
DC injection Braking Time
at Stop (n069)
Factory Default: 0.5 s
Run Command
ON
Figure 39 Stopping Method - Deceleration to Stop
w/ braking resistor, approx. 150% of motor rated torque
Output frequency
Run command
ON
Figure 40 Stopping Method - Coast to Stop
Description
Decel time 1 (n019)
OFF
Inverter output is shut OFF
when stop command is given.
OFF
FP5/GP5 User's Manual