Section 5: Configuration of the frequency converter
5.1. Control from the control panel
Control from the control panel is assigned by default to "control place A". It is
possible to assign control from the control panel to the "control place B" (or
restore to the "control place A" when a change has been made). To do this:
• set parameter
2.02
(for A) or
2.03
(for B) to
"0" – KBD (keyboard)
;
• set parameter
2.04
(for A) or
2.05
(for B) to
"1" – Key
;
• set parameter
2.06
(for A) or
2.07
(for B) to
"1" – Key
;
• make sure that constant speed selection is not active: parameters
2.30, 2.31
and
2.32
should be set to
"0" – Off;
• activate the desired control place with parameter
2.01
:
"0"
for A,
"7"
for B.
5.2. Control from the terminal block
Control from the terminal block is the default setting of the "control place B". In
order to control the frequency converter from the terminal block, it is
recommended to activate the "control point B"
(par. 2.01 = "7" - On)
and,
based on the factory settings, adjust the converter to your needs.
An example of control using the factory settings is described at the end of this
section.
In order to control the system from the terminal strip (e.g. Start/Stop from
digital inputs and speed control by means of a potentiometer):
• Select analogue input AI1 or AI2 as the speed referencing-unit.
The choice of the referencing-unit is made by the parameter
2.02
(for the "control place" A) or
2.03
(for the "control place" B). In each
of these parameters:
"1" - AI1
means analog input 1 (voltage),
"2" - AI2
means analog input 2 (current).
•
Select digital inputs as the Start/Stop signal source - set parameter
2.04
(for A) or
2.05
(for B) to
"0" – DI.
•
Also select digital inputs as the signal for direction control - set
parameter
2.06
(for A) or
2.07
(for B) to
"0" – DI
.
•
Make sure that the constant speed selection is not active: par.
2.30
,
2.31
and
2.32
should be set to
"0" – Off.
•
Set parameter
2.08
-
Remote start
. It defines the functions of the
control digital inputs according to the table 5.1.
•
Activate the desired control place with the parameter
2.01.
26
TWERD Power Electronics
Содержание AFC200
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