Explanation of Function
Seite 74 / 180
Direct current braking
A dc voltage can be applied to the motor windings
in order to lock the motor shaft and avoid overun
at low speeds.
There are two methods of activating the dc braking,
Outside which is through the intelligent input
terminals and Inside which is automatically started
at a specific frequency.
Set item
Functin code
Data
Contents
00
Inside DC braking : invalid
DC braking selection
A051
01
Inside DC braking : valid
DC braking frequency
A052
0.00-60.00
Unit : Hz
When the output reaches the set frequency
and Inside DC braking is valid, DC braking
is started.
DC braking late time
A053
0.0-5.0
Unit : second
After DC braking time is reached, or DB
terminal is ON, the late time is a delay
before DC braking is started.
DC braking power
/Starting DC braking
power
A054/A057
0.
100
Unit : %
Weak (Zero current)
Strong (Inverter rating fairly 70% the DC
current)
DC braking time
A055
0.0-60.0
Unit : second
The DC braking is stopped after this time
delay has elapsed. The time is tarted when
the late time has elapsed.
00
Edge movement (Example 1-6-a)
DC braking edge/level
selection
A056
01
Level movement (Example 1-6-b)
Starting DC braking
time
A058 0.0-60.0
Unit : second
It is valid for inside DC braking.
When operating command is ON, DC
current is started.
DC braking carrier
Frequency
A059
0.5-15
Unit : kHz
(1) DC braking carrier frequency
It is possible to alter the DC braking carrier frequency. However, if the DC braking carrier frequency is set
higher than 5kHz, the value of maximum braking power level is automatically reduced as follows.
Set DC braking carrier frequency with A059.
A051: DC braking selection
A052: DC braking frequency
A053: DC braking late time
A054: DC braking power
A055: DC braking time
Relation
A056: DC braking edge/level
selection
A057: Starting DC braking power
A058: Starting DC braking time
0
3
5
7
9
11
13
Maximum braking
ratio (%)
Direct braking carrier frequency
70
60
50
4
30
20
10
Direct braking power limiter
(75
(46
(34
(22
(10
15
80
90
10
Содержание V3000-015HF
Страница 1: ...INVERTER Series V3000 M A N U A L...
Страница 13: ...General Descriptions Seite 13 180 6 2 Dimension 178...
Страница 91: ...Explanation of Function Seite 91 180 Reduced rated ratio Inverter output Frequency X1 0 0 60 X0 9 X0 8 5 2 5...
Страница 173: ...Explanation of Function Seite 173 180 RB N No conduct N RB No conduct...
Страница 179: ...Specification Seite 179 180 V3000 150 220NF HF V3000 300NF HF 2 31 26 54 51 10 19 25 22 2 39 37 7 22 9 24 19 92...
Страница 180: ...Specification Seite 180 180 V3000 370 450NF HF V3000 550NF HF 25 55 52 10 39 30 2 25 70 67 12 48 38 2...