17.10 Mechanical Brake Control
Parameters
FC
+24 V
+24 V
D IN
D IN
D IN
COM
D IN
D IN
D IN
D IN
+10 V
A IN
A IN
COM
A OUT
COM
R1
R2
12
13
18
19
20
27
29
32
33
37
50
53
54
55
42
39
01
02
03
04
05
06
130BB841.10
Function
Setting
Parameter 5-40 F
unction Relay
[32] Mech.
brake ctrl.
Parameter 5-10 T
erminal 18
Digital Input
[8] Start*
Parameter 5-11 T
erminal 19
Digital Input
[11] Start
reversing
Parameter 1-71 S
tart Delay
0.2
Parameter 1-72 S
tart Function
[5] VVC+/
FLUX
Clockwise
Parameter 1-76 S
tart Current
Im,n
Parameter 2-20 R
elease Brake
Current
App.
dependent
Parameter 2-21 A
ctivate Brake
Speed [RPM]
Half of
nominal slip
of the motor
*=Default value
Notes/comments:
Table 17.14 Mechanical Brake Control
Start (18)
Start
reversing (19)
Relay output
Speed
Time
Current
1-71
1-71
2-21
2-21
1-76
Open
Closed
130BB842.10
Illustration 17.4 Mechanical Brake Control
17.11 Encoder Connection
Before setting up the encoder, the basic settings for a
closed-loop speed control system are shown.
See also
130BA090.12
+24 V
DC
A
B
GND
13
12
18
37
32
27
19
29
33
20
24 V or 10–30 V encoder
Illustration 17.5 Encoder Connection to the Frequency
Converter
B
A
B
A
130BA646.10
CW
CCW
Illustration 17.6 24 V Incremental Encoder. Maximum Cable
Length 5 m (16 ft)
17.12 Encoder Direction
The direction of the encoder, identified by looking into the
shaft end, is determined by which order the pulses enter
the frequency converter.
•
Clockwise (CW) direction means channel A is 90
electrical degrees before channel B.
•
Counterclockwise (CCW) direction means channel
B is 90 electrical degrees before A.
Application Examples
Design Guide
MG37N102
Danfoss A/S © 6/2016 All rights reserved.
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