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If b1-01= "3: Option PCB" but a network card is not installed in 2CN, an "OPE05" operator programming
IMPORTANT
error will be displayed on the digital operator and the Drive will not run.
b1-03 Stopping Method
There are four methods of stopping the Drive when the Run command is removed.
Setting
0
Ramp to Stop (factory default)
1
Coast to Stop
2
DC Injection to Stop
3
Coast w/Timer
"0: Ramp to stop": When the Run command is removed, the Drive will decelerate the motor to 0 rpm. The rate of
deceleration is determined by the active deceleration time. The factory default Decel Time is in parameter C1-02.
When the output frequency has dropped below the DC Injection Start Frequency in b2-01 (Default = 0.5HZ) DC current will
be injected in the motor at a level determined by b2-02 (50% Default). The DC Injection condition will occur for the time
specified by b2-04 (0.0 Default), to establish the end point of the ramp. DC injection can be used to insure the motor is at zero
rpm prior to the Drive shutting off.
Run Command
Output Frequency
The actual deceleration time can be determined by the following formula
Output
Freq.
=
Time
to
Stop
Maximum
If S-Curve characteristics are specified by the Drive programming, they will add to the total time to stop.
"1: Coast to stop": When the Run command is removed, the Drive will turn off its output and the motor will coast
(uncontrolled deceleration). The friction of the driven equipment will eventually overcome any residual inertia of the system
and the rotation will stop.
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Description
100 %
Deceleration Time (C1-02)
0 %
Fig 5.4 Deceleration to Stop
at time
of
stop
command
×
Setting
Frequency
(E1
-
04)
Programming 5 - 6
DC Injection Brake
|
TIME
of
active
Decel
Time
(C1
(CLOSED)
ON
(OPEN)
OFF
b2-01
b2-04
|
-
02 or C1-04)
02)
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