•
No signal present prevents the unit from
operating.
•
When the status line at the bottom of the LCP
reads AUTO REMOTE COAST, this indicates that
the unit is ready to operate but is missing an
input signal on terminal 27.
•
When factory installed optional equipment is
wired to terminal 27, do not remove that wiring
2.4.5.7 Terminal 53 and 54 Switches
•
Analog input terminals 53 and 54 can select
either voltage (-10 to 10 V) or current (0/4–20
mA) input signals
•
Remove power to the adjustable frequency drive
before changing switch positions.
•
Set switches A53 and A54 to select the signal
type. U selects voltage, I selects current.
•
The switches are accessible when the LCP has
been removed (see
NOTE!
Some option cards available for the unit may cover these
switches and must be removed to change switch settings.
Always remove power to the unit before removing option
cards.
•
Terminal 53 default is for a speed reference signal
in open-loop set in
16-61 Terminal 53 Switch
Setting
•
Terminal 54 default is for a feedback signal in
closed-loop set in
16-63 Terminal 54 Switch Setting
130B
T310.10
1
2
N O
VLT
BUS TER.
OFF-ON
A53 A54
U- I U- I
Figure 2.18 Location of Terminals 53 and 54 Switches and Bus
Termination Switch
2.4.5.8 Mechanical Brake Control
In hoisting/lowering applications, it is necessary to be able
to control an electro-mechanical brake:
•
Control the brake using any relay output or
digital output (terminal 27 or 29).
•
Keep the output closed (voltage-free) as long as
the adjustable frequency drive is unable to
‘support’ the motor, such as when the load is too
heavy, for example.
•
Select
[32]
Mechanical brake control
in parameter
group 5-4* for applications with an electro-
mechanical brake.
•
The brake is released when the motor current
exceeds the preset value in
2-20 Release Brake
Current
.
•
The brake is engaged when the output frequency
is less than the frequency set in
2-21 Activate
Brake Speed [RPM]
or
2-22 Activate Brake Speed
[Hz]
, and only if the adjustable frequency drive
carries out a stop command.
Installation
VLT
®
AutomationDrive Instruction
Manual
MG33AM22 - VLT
®
is a registered Danfoss trademark
2-11
2
2
Содержание FC 300
Страница 1: ...MAKING MODERN LIVING POSSIBLE Instruction Manual VLT AutomationDrive FC 300 0 25 75 kW ...
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Страница 8: ...Contents VLT AutomationDrive Instruction Manual MG33AM22 VLT is a registered Danfoss trademark ...
Страница 14: ...Introduction VLT AutomationDrive Instruction Manual 1 6 MG33AM22 VLT is a registered Danfoss trademark 1 1 ...
Страница 62: ...Status Messages VLT AutomationDrive Instruction Manual 7 4 MG33AM22 VLT is a registered Danfoss trademark 7 7 ...
Страница 109: ...Index VLT AutomationDrive Instruction Manual MG33AM22 VLT is a registered Danfoss trademark 12 5 ...
Страница 110: ...www danfoss com drives MG33AM22 130R0300 MG33AM22 Rev 2013 03 12 ...