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24
COMMISSIONING MANUAL
POWERDRIVE MD
Variable speed drive
PARAMETER SETTING INTERFACE
LEROY-SOMER
3871 en - 2011.05 / h
2.4.5.2 - Explanation of parameters
: Minimum reference clamp
Adjustment range : 0 to
00.02
rpm
Factory setting
: 0
In unipolar mode, defines the minimum speed (inactive in
bipolar mode).
CAUTION:
• This parameter is inactive durin
g
jo
g
operation.
• If the value of
00.02
is lower than that of
00.01
, the
value of
00.01
is automatically chan
g
ed to the new value
of
00.02
.
: Maximum reference clamp
Adjustment range : 0 to 32000 rpm
Factory setting
:
Eur = 1500 rpm
USA = 1800 rpm
• Before settin
g
the maximum reference clamp,
check that the motor and the driven machine can
withstand it.
Defines the maximum speed in both directions of rotation.
: Acceleration rate 1
Adjustment range : 0.1 to 3200.0 s/1000 rpm
*
Factory setting
: 20.0 s/1000 rpm
Sets the time for acceleration from 0 to 1000 rpm
*
.
00.03
=
Deceleration rate 1
Adjustment range : 0.1 to 3200.0 s/1000 rpm
*
Factory setting
: 20.0 s/1000 rpm
Sets the time for deceleration from 1000 rpm
*
to 0.
00.04
=
* Note:
The reference speed can be changed from 1000 to
100 rpm in parameter
02.56
. This makes it possible to
multiply the acceleration and deceleration times by 10.
: Reference selector
Adjustment range : Term. inputs (0),
Analog 1 (1),
Analog 2 (2),
Preset (3),
Keypad (4)
Factory setting
: Terminals (0)
Term. inputs (0): In factory settin
g
mode, the speed
reference is selected by combinin
g
di
g
ital inputs DIO2
and DIO3, as follows:
To fix the value of preset reference 2, set
00.47
.
To connect the corresponding control, refer to the "Factory
configuration of control terminal blocks" section in the drive
installation manual.
Analo
g
1 (1):
In factory setting mode, the speed reference is
selected via digital input DIO2, as follows:
Analo
g
2 (2):
In factory setting mode, the speed reference is
selected via digital input DIO2, as follows:
Preset (3):
The speed reference comes from preset
references.
In order to be able to select one of 4 preset references via
2 digital inputs DIO2 and DIO3, set the following parameters:
-
00.34
=
01.46
,
-
00.46
to
00.49
at the desired preset speed (rpm).
Keypad (4):
The speed reference comes from the
configuration interface.
: Motor rated current
Adjustment range : 0 to I
co
(A)
Factory setting
: Motor rated current corresponding
to the drive rating (see section 5.6.3)
This is the value of the motor rated current indicated on the
nameplate. The overload is calculated from this value.
: Motor rated speed
Adjustment range : 1 to 32000 rpm
Factory setting
: Motor rated speed corresponding
to the drive rating (see section 5.6.3)
This is the on-load speed of the motor shown on the
nameplate.
Note:
This value must take into account the slip of the
asynchronous motor with respect to the synchronous speed.
Under no circumstances must this slip be negative.
00.01
00.02
00.03
t(s) x 1000 min
-1
(
N
2 -
N
1) min
-1
N (rpm)
1000
N2
N1
0
Value of
00.03
t
t (s)
00.04
t(s) x 1000 min
-1
(
N
2 -
N
1) min
-1
0
Value of
00.04
t
t (s)
N (rpm)
1000
N2
N1
DIO2 state DIO3 state
Speed reference selection
0
0
Analog reference AI1
0
1
Analog reference ADI2
1
0
Preset reference 2
1
1
DIO2 state
Speed reference selection
0
Analog reference AI1
1
Preset reference 2
DIO2 state
Speed reference selection
0
Analog reference ADI2
1
Preset reference 2
DIO2 state DIO3 state
Speed reference selection
0
0
Preset reference 1
0
1
Preset reference 2
1
0
Preset reference 3
1
1
Preset reference 4
00.05
00.06
00.07
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