Emerson MP25A4 User Manual page 67

Mentor mp series high performance dc drive 25a to 7400a, 480v to 690v two or four quadrant operation
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Safety
Product
Mechanical
Information
information
Installation
SE07
Motor rated current
{0.28, 5.07}
RW
Uni
0 to RATED_CURRENT_MAX
A
The rated current should be set at the motor nameplate value for rated
current. The value of this parameter is used in the following:
Current limits
Motor thermal protection
SE08
Base speed
{0.29, 5.08}
RW
Uni
0.0 to 10,000.0 rpm
The rated speed defines the base speed of the motor. It is also to
determine the speed used in the auto tuning inertia test (see SE13
[Pr 0.34, 5.12]).
SE09
Parameter copying
{0.30, 11.42}
RW
Txt
nonE (0), rEAd (1), ProG (2),
Auto (3), boot (4)
* Modes 1 and 2 are not user saved, Modes 0, 3 and 4 are user saved.
If SE09 (Pr 0.30, 11.42) is equal to 1 or 2 this value is not transferred to
the EEPROM or the drive. If SE09 (Pr 0.30, 11.42) is set to a 3 or 4 the
value is transferred.
Pr
Pr
String
value
nonE
0
Inactive
rEAd
1
Read parameter set from the SMARTCARD
ProG
2
Programming a parameter set to the SMARTCARD
Auto
3
Auto save
boot
4
Boot mode
For further information, refer to Chapter 9 SMARTCARD operation on
page 81.
SE10
Rated field current
{0.31, 5.70}
RW
Uni
0 to
FIELD_CURRENT_SET_MAX
This parameter will be set to the field current of the motor and will define
the rated field current for the field controller.
SE11
Rated field voltage
{0.32, 5.73}
RW
Uni
0 to 500 Vdc
The maximum voltage the field controller is allowed to generate.
Mentor MP User Guide
Issue: 3
Electrical
Getting
Basic
installation
started
parameters
RA
US
RATED_CURRENT_MAX
US
1000.0
NC
*
nonE (0)
Comment
PT
US
Size 1: Eur 2A, USA 8A
Size 2A/B: Eur 3A, USA 20A
Size 2C/D: Eur 5A, USA 20A
PT
US
Eur: 360, USA: 300
www.controltechniques.com
Running the
SMARTCARD
Optimization
motor
operation
SE12
Enable field control
{0.33, 5.77}
RW
Txt
OFF (0) or On (1)
When this parameter is set to 0 the internal and external field controllers
are disabled. Setting the parameter to 1 enables the internal or external
field controller.
SE13
Autotune
{0.34, 5.12}
RW
Uni
0 to 3
If this parameter is set to a non-zero value, the drive is enabled and a
run command is applied in either direction the drive performs an auto-
tune test. All tests that rotate the motor are carried out in the forward
direction if di12 (Pr 0.47, 1.12) = 0 or the reverse direction if di12
(Pr 0.47, 1.12) = 1. For example, if the test is initiated by applying run
reverse (Pr 6.32 = 1) the test is performed in the reverse direction. The
test will not start unless the drive is disabled before the test is initiated by
applying the enable or run, i.e. it will not start if the drive is in the stop
state. It is not possible to go into the stop state if di12 (Pr 0.47, 1.12) has
a non-zero value.
When the test is completed successfully the drive is disabled and will
enter the inhibit state. The motor can only be restarted if the enable is
removed either from the enable input, or Pr 6.15 is set to zero or from
the control word (Pr 6.42) if it is active.
Value
0
1
2
3
Static autotune for current loop gains
When this operation is performed, the drive will estimate the following,
with respect to the selected motor map, and store the values:
Motor constant (Pr 5.15)
Continuous proportional gain (Pr 4.13)
Continuous integral gain (Pr 4.14)
Discontinuous integral gain (Pr 4.34)
Back EMF set point (Pr 5.59)
Armature resistance (Pr 5.61)
Flux loop I gain (Pr 5.72)
Spinning autotune for motor saturation break points
When this operation is performed, the drive will estimate the following,
with respect to the selected motor map, and store the values:
Motor saturation break points (Pr 5.29, Pr 5.30), by spinning the
motor at 25% of it's base speed (Pr 5.06)
Field current compensation factor (Pr 5.74)
Spinning autotune for inertia measurement
The drive can measure the total inertia of the load and motor. This is
used to set the speed loop gains. See Pr 3.17 Speed controller setup
method = 1 (bandwidth setup). During the inertia measurement test the
drive attempts to accelerate the motor to
standstill. Several attempts may be made, starting with rated torque/16,
and then increasing the torque progressively to x
rated torque if the motor cannot be accelerated to the required speed. If
the required speed is not achieved on the final attempt the test is
aborted and a tuNE 1 trip is initiated. If the test is successful the
acceleration and deceleration times are used to calculate the motor and
load inertia and a value is written to Pr 3.18 Motor and load inertia.
Onboard
Advanced
Technical
PLC
parameters
data
NC
Autotune function
None
Static autotune for current loop gains
Spinning autotune for motor saturation break points
Spinning autotune for inertia measurement
3
/
rated speed then back to a
4
1
UL
Diagnostics
information
US
OFF (0)
0
1
1
/
, x
/
, x
/
, and x 1
8
4
2
67

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