5 Commissioning
5.1 Safety Instructions
Refer to the safety warnings in
before
commissioning.
5.2 Basic Parameters Set-up
VLT Parameter Groups
•
Parameter 1-** Motor data, open or closed loop,
AMA
•
Parameter 2-** Dynamic brake
•
Parameter 3-** Reference range and limits, Ramps
•
Parameter 4-** Speed limits, Torque limits
•
Parameter 7-** If using the Drive speed closed
loop, tune it before MCO PID
MCO Basic Parameters
•
Parameter 32-0* Encoder2 (feedback) set-up type
and resolution
•
Parameter 32-3* Encoder1 (if used) set-up type
and resolution
•
Parameter 32-6* Set PID values
•
Parameter 32-8* Maximum velocity, Ramps
5.3 Basic Set-up
Refer to the safety warnings in
before
commissioning.
For information on applying power and operation of the
LCP, refer to the
VLT
®
AutomationDrive FC 301/FC 302
Operating Instructions
.
1.
Check the motor connection. Control the brake
externally from the option until set-up is finished,
because the mechanical brake control cannot be
guaranteed during this basic set-up. Also ensure
that the motor can rotate freely without causing
damage or injury.
2.
Remove all signals to inputs. Only Input 27
(coast), I8 (Qstop), I3 (Negative HW limit) and I2
(Positive HW limit) must be connected and high.
3.
Select
Off
Mode
4.
Run the Quick Set-up with the correct motor
data.
5.
Go to
Hand on
mode and set the frequency for a
low positive value, for e3 Hz in the
reference value. The motor should now rotate.
6.
If the motor rotates in the wrong (negative)
direction, exchange the motor phases.
7.
Set the parameters for feedback encoder in
parameter group
32-0* Encoder 2 parameters
and,
if needed, parameters for encoder in parameter
group
32-3* Encoder 1 parameters
.
7a
For incremental encoder:
Set parameter
32-00 Incremental Signal
Type
to the type needed. Set the
resolution of the encoder in parameter
32-01 Incremental Resolution
. Set
parameter
32-00 Incremental Signal Type
.
7b
For absolute encoder:
Set parameter
32-00 Incremental Signal
Type
to [0]. Set parameter
32-02 Absolute
Protocol
to the encoder type used and
32-03 Absolute Resolution
to the encoder
resolution. Set the data bit and clock
settings for the absolute encoder from
parameter
32-05 Absolute Encoder Data
Length
to
32-08 Absolute Encoder Cable
Length
.
8.
Press the [Status] button on the LCP. Now the
RPM
and
Actual Position
values appear in the
upper line of the display.
9.
Optimise the PID controller(s).
5.4 PID Settings
Calculate Feed forward velocity (FFVEL –
32-65 Velocity
Feed Forward
)
FFVEL =
62914560000
MaxVelEnc x EncRes x Tsample
•
FFVEL =
32-65 Velocity Feed Forward
•
MaxVelEnc = parameter
32-80 Maximum Velocity
(Encoder)
•
EncRes = Encoder resolution
-
For incremental and sinusoidal encoders:
EncRes = 4 x (
32-01 Incremental
Resolution
)
-
For CAN encoders: EncRes = 1 x
(parameter
32-01 Incremental Resolution
)
-
For absolute encoders: EncRes =
32-03
Absolute Resolution
•
Tsample = PID sampling time (
32-69 Sampling
Time for PID Control
)
Use parameter
19-19 FFVEL Auto-calculation
to specify if the
calculation should be made automatically. This is only
possible when encoder and speed parameters have been
set.
Commissioning
Operating Instructions
MG33R302
Danfoss A/S © 04/2014 All rights reserved.
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