Danfoss VLT FC 302 Operating Instructions Manual page 61

Programming
Motor
Speed
Torque Ramp
Up Time
p. 2-27
Torque Ref. p. 2-26
W22
Active
Torque
Ref.
Brake
Relay
High
Contact no.1
E.g. DI32 [70] Mech. Brake Feedback
Low
Mech Brake
Feedback
High
Contact no.2
OPTIONAL
Low
E.g. DI33 [71] Mech. Brake Feedback
Open
Mech Brake
Position
Closed
Gain Boost. p. 2-28
Gain Boost or
Postion Control
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 - Enter up to 8 different preset references (0–
% 100.00 %] 7) in this parameter, using array
*
programming. The preset reference is stated
as a percentage of the value Ref
(parameter 3-03 Maximum Reference) If a
Ref different from 0
MIN
(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
value is added to Ref
references, select Preset ref. bit 0/1/2 [16],
[17] or [18] for the corresponding digital
inputs in parameter group 5–1* Digital Inputs.
MG37A202
Operating Instructions
Brake Release Ramp 1 Up
Time P. 3-41
p. 2-25
MAX
and Ref . Afterwards, the
MAX MIN
. When using preset
MIN
Danfoss A/S © Rev. 2014-07-29 All rights reserved.
Ramp 1 Down Stop Delay
P. 3-42 P. 2-24
A22 A22
Active Active
12 (+24V)
Preset 76543210
10101010 29 [P 5-13=Preset ref. bit 0]
32 [P 5-14=Preset ref. bit 1]
11001100
33
11110000 [P 5-15=Preset ref. bit 2]
Illustration 6.9 Preset Reference
Preset ref. bit
Preset ref. 0
Preset ref. 1
Preset ref. 2
Preset ref. 3
Preset ref. 4
Preset ref. 5
Preset ref. 6
Preset ref. 7
Table 6.4 Bits per Preset Reference
Activate Brake Torque Ramp
Delay Down Time
P. 2-23 p. 2-29
W22
Active
2 1 0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
59
6 6