Leroy-Somer POWERDRIVE MD, Руководство по вводу в эксплуатацию

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COMMISSIONING MANUAL
POWERDRIVE MD
Variable speed drive
MENUS AND DIAGRAMS IN ADVANCED SET UP MODE
LEROY-SOMER
3871 en - 2011.05 / h
5.3.2 - Explanation of parameters in menu 2
: Post ramp reference
Adjustment range : • If
01.10
= 0 and
02.02
= 0: 0 to
01.06
• If
01.10
= 0 and
02.02
= 1:
01.07
to
01.06
,
• If
01.10
= 1: ±
01.06
Measurement of the post-ramp reference. Used for
diagnostics.
: Ramp by-pass ( )
Adjustment range : Off (0) or On (1)
Factory setting
: Off (0)
Off (0): Ramps active.
On (1): Ramps short-circuited.
: Ramp hold
Adjustment range : Off (0) or On (1)
Factory setting
: Off (0)
Off (0): Ramp freed.
On (1): The ramp is held and acceleration (or deceleration) is
therefore interrupted.
CAUTION:
The ramp hold function is disabled if a stop command is
g iven.
: Deceleration ramp mode select
Adjustment range : Fast (0), Standard (1),
St (2), Fast + (3)
Factory setting : Standard (1)
Fast (0): Deceleration ramp imposed. If the deceleration
ramp that has been configured is too fast in relation to the
inertia of the load, the DC bus voltage exceeds its maximum
value (set in
02.08
) and the drive trips on DC bus
overvoltage.
CAUTION:
Select mode
02.04
= Fast (0) when a brakin g resistor is
bein g used.
Standard (1): Standard deceleration ramp with automatic
extension of the ramp time in order to avoid causin
g a DC
bus overvolta g e trip on the drive (threshold set in
02.08
).
St (2): The drive allows the motor voltage to be
increased up to 1.2 times the rated voltage set in
05.09
(motor rated voltage), to avoid reaching the maximum DC bus
voltage threshold (threshold set in
02.08
). However, if this is
not sufficient, the standard deceleration ramp time is
extended, to avoid causing a DC bus overvoltage trip on the
drive.
For the same amount of energy, mode 2 enables faster
deceleration than mode 1.
Fast + (3): Same as mode 2, but the ramp is imposed. If the
configured ramp is too fast, the drive trips on DC bus
overvoltage.
CAUTION:
In modes 2 and 3, the motor must be capable of toleratin
g
additional losses relatin g to the increase in volta g e at its
terminals.
: Not used
: S ramp enable
Adjustment range : Off (0) or On (1)
Factory setting
: Off (0)
Off (0): The ramp is linear.
On (1): A curved part (defined in
02.07
) at the start and end
of the ramp avoids load swinging.
CAUTION:
The S ramp is deactivated durin
g controlled decelerations
(
02.04
= Standard (1) or St (2)).
: S ramp acceleration limit
Adjustment range : 2 to 10
Factory setting
: 10
Used to modify the ramp curve by the same value at the start
and end of the ramp.
The value 4 represents a time for the curved part of 25% of the
total ramp and 10 represents a time for the curved part of 10%.
Note: In S ramp mode, the total ramp time will be greater than
that of the selected ramp.
: Standard ramp volta g e
Adjustment range : 0 to 1300 V
Factory setting
: T ratings = Eur: 690 V , USA: 750 V
TH ratings = 1100 V
This threshold is used when the drive is configured in
standard deceleration mode (
02.04
= Standard (1) or
St (2)).
If this threshold is too high and there are no resistors
connected, the drive will trip on DC bus overvoltage.
The minimum value of this parameter must be 50 V higher
than the DC bus voltage obtained with the maximum supply
voltage (Bus V = Supply V x
—
2).
: Not used
: Acceleration rate selector
Adjustment range : Term. inputs (0), Acceler. 1 (1) to
Acceler. 8 (8), To preset (9)
Factory setting : Acceler. 1 (1)
This parameter is used to select the acceleration ramp as
follows:
Term. inputs (0): Selection of the acceleration ramp via
digital inputs. The choice of ramp comes from the binary sum
in menu 9 (
09.32
).
Acceler. 1 (1): Acceleration rate 1
Acceler. 2 (2): Acceleration rate 2
Acceler. 3 (3): Acceleration rate 3
Acceler. 4 (4): Acceleration rate 4
Acceler. 5 (5): Acceleration rate 5
Acceler. 6 (6): Acceleration rate 6
Acceler. 7 (7): Acceleration rate 7
Acceler. 8 ( 8 ): Acceleration rate 8
To preset (9): The ramp is automatically associated with the
corresponding preset speed.
02.01
02.02
02.03
02.04
02.05
02.06
02.07
02.08
02.09
02.10