User`s manual

54 FP5/GP5 User’s Manual
·Stall prevention during deceleration (n072, StallP Decel Sel)
To prevent overvoltage during deceleration, the inverter automatically
extends the deceleration time according to the value of main circuit DC
voltage. When using an optional braking resistor for the FP5/GP5,
set parameter n072 to”0”.
DC Injection Braking
·DC Injection Braking Current (n068, DCInj Current)
DC injection braking current can be set in increments of 1%.
(100% = inverter rated current)
·DC injection Braking Time at Stop (n069, DCInj Time @ Stop)
DC injection braking time at stop can be set in increments of 0.1 sec-
ond. When parameter n069 is set to “0”, DC injection braking at stop-
ping is disabled.
When coast to stop is selected in the stopping method selection (n004),
DC injection braking at stop is disabled.
LED Setting LCD Setting Stall Prevention During Deceleration
0 Disabled Disabled (when optional braking resistor mounted)
1 Enabled Enabled (factory default)
Figure 22 Stall Prevention During Deceleration
Frequency
Set Deceleration Time
Time
Extends the deceleration time to
prevent overvoltage fault.
DC injection Braking
Time at Stop
n016
Min. Output Frequency
n069
Figure 23a DC Injection Braking Time at Stop
Chapter 3 - Programming Features
FP5/GP5 Operation
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