Table of Contents
Advertisement
Action
Check unit visually.
Set drive parameters according to instructions. However,
switch Trim function off (parameter 40.14 = OFF) for the time
being.
Shift control panel to local control mode.
Select following actual values to panel display: 01.02
SPEED, 01.03 FREQUENCY, 01.18 AI1 [V].
Start drive and increase speed reference until output
frequency is as close to 50 Hz as possible. Write down actual
speed and speed reference at 50 Hz output frequency.
Drop speed so that output frequency is 45 ... 47 Hz. Ensure
that AI1 is 8 ... 10 V DC.
Increase speed reference so that output frequency is
52 ... 55 Hz. Ensure that AI1 is 0 ... 1 V DC.
Stop the drive.
Checking of the trim function and synchronization
This check makes sure that the trim function affects the speed control of the drive in
the correct manner. Finding a right value for trim range adjustment (parameter
40.17) is essential for stable control and fast synchronization. Then the system
reaches the synchronization with decreasing oscillations around 50 Hz and actual
signal for Trim function (AI1) settles to approximately 5 V DC.
For the use of control panel, see ACS800 Standard Control Program 7.x Firmware
Manual (3AFE64527592 [English]).
Reserve at hand the value of the speed reference and actual speed that were
equivalent to 50 Hz output frequency (defined in the previous section).
the operation of the RSYC unit
Actions
Set drive parameters according to instructions. However, switch Trim function off
(parameter 40.14 = OFF) for the time being.
Use LOC/REM key to select remote control. The drive is now ready to be
controlled externally with the control panel.
Start drive.
Set speed reference to value that was equivalent to 50 Hz output frequency.
Check output frequency from display. If it is not 50 Hz adjust the reference in
small steps so that output frequency from display shows 50 Hz. Write down this
value again.
Stop drive.
Set trim function on (parameter 40.14 TRIM MODE = DIRECT).
Additional information
-
See
Parameter settings
Use LOC/REM key. Letter L on first row of display
indicates local control.
AI1 is the 0 ... 10 V DC status signal from the
unit.
The difference between the speed reference and
the actual speed depends on the slip which, in
turn, depends on the motor load.
-
-
-
on page
18.
on page 17.
Checking
Information
See
Parameter settings
on page 17.
Letter R on first row of display
indicates remote control mode of
panel.
-
-
-
-
The speed reference and output
frequency will now be affected by
Trim function slightly.
Start-up
19
Advertisement
Table of Contents
