130BA642.12
A22
Active
W22
Active
W22
Active
A22
Active
High
Low
High
Low
Open
Closed
Motor
Speed
Torque
Ref.
Brake
Relay
Mech Brake
Feedback
Gain Boost or
Postion Control
Mech Brake
Position
Activate Brake
Delay
P. 2-23
Torque Ramp
Down Time
p. 2-29
Stop Delay
P. 2-24
Ramp 1 Down
P. 3-42
Ramp 1 Up
P. 3-41
Brake Release
Time
p. 2-25
Torque Ramp
Up Time
p. 2-27
Contact no.2
OPTIONAL
E.g. DI33 [71] Mech. Brake Feedback
Contact no.1
E.g. DI32 [70] Mech. Brake Feedback
Gain Boost. p. 2-28
Torque Ref. p. 2-26
Illustration 6.8 Brake Release Sequence for Hoist Mechanical Brake Control
I)
Activate brake delay: The frequency converter starts again
from the mechanical brake engaged position.
II) Stop delay: When the time between successive starts is
shorter than the setting in parameter 2-24 Stop Delay, the
frequency converter starts without applying the
mechanical brake (reversing).
3-10 Preset Reference
Array [8]
Range: 0–7
Range: Function:
0.00
%*
[-100.00 -
100.00 %]
Enter up to 8 different preset references (0–
7) in this parameter, using array
programming. The preset reference is stated
as a percentage of the value Ref
MAX
(parameter 3-03 Maximum Reference) If a
Ref
MIN
different from 0
(parameter 3-02 Minimum Reference) is
programmed, the preset reference is
calculated as a percentage of the full
reference range, based on the difference
between Ref
MAX
and Ref
MIN
. Afterwards, the
value is added to Ref
MIN
. When using preset
references, select Preset ref. bit 0/1/2 [16],
[17] or [18] for the corresponding digital
inputs in parameter group 5–1* Digital Inputs.
[P 5-13=Preset ref. bit 0]
Preset
[P 5-14=Preset ref. bit 1]
[P 5-15=Preset ref. bit 2]
10101010
76543210
29
12
(+24V)
11001100
32
11110000
33
130BA149.10
Illustration 6.9 Preset Reference
Preset ref. bit 2 1 0
Preset ref. 0 0 0 0
Preset ref. 1 0 0 1
Preset ref. 2 0 1 0
Preset ref. 3 0 1 1
Preset ref. 4 1 0 0
Preset ref. 5 1 0 1
Preset ref. 6 1 1 0
Preset ref. 7 1 1 1
Table 6.4 Bits per Preset Reference
Programming Operating Instructions
MG37A202 Danfoss A/S © Rev. 2014-07-29 All rights reserved. 59
6 6
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