Leroy-Somer DIGIDRIVE SE2.5T User Manual

Installation and commissioning
DIGIDRIVE
Variable speed drive
Réf. 3218 GB - 4.33 / d - 02.02
LEROY-SOMER
71
4.10 - "Brake control" preset
configuration
4.10.1 - Introduction
The DIGIDRIVE factory configuration is
usually suitable for the type of operation
required by the installation. However, in
order to simplify drive parameter setting in
the case of operation with brake, a preset
configuration can be selected by setting 2
2
9
9
to "br.Eu" (for 50Hz mains) or "br.US" (for
60Hz mains), then pressing the
"Reset" key.
The drive then automatically adapts the
remote control terminal block, by modifying
the factory setting of certain parameters
and adding the special parameters 5
5
1
1
to
5
5
4
4
in level 2 of the keypad (1
1
0
0
= L2).
4.10.2 - Operating principle
• A brake release command is issued if the
drive is not faulty, if the output frequency is
above the threshold set in 5
5
1
1
and if the
output current is above the threshold set in
5
5
2
2
+ (5
5
3
3
/2).
When all the conditions are met, brake
release is delayed by the value of the time
delay set in 5
5
4
4
.
• A brake engage command is issued when
the drive becomes faulty or when the output
frequency drops below the threshold set in
5
5
1
1
or when the output current is below the
threshold set in 5
5
2
2
- (5
5
3
3
/2).
• Since this configuration prevents
some of the safety functions
inherent to hoisting operations, it
should be reserved for horizontal
movements or hoisting movements
where there is no risk of danger for
people or equipment.
• The fault relay should be wired in
series with the brake release relay, so
that the brake engages when the drive
becomes faulty.
CAUTION:
If the direction of rotation is reversed,
this configuration causes the brake to
be engaged between + (value of 5
5
1
1
) Hz
and - (value of 5
5
1
1
) Hz.
4.10.3 - List of parameters in the "brake control configuration"
Parameter Name Addres Type Adjustment range Factory
0
0
1
1
to 5
5
0
0
Parameters identical to the standard factory setting
5
5
1
1
Zero frequency threshold 3
3
.
.
0
0
5
5
R - W 0 to 20.0 Hz 1.0 Hz
5
5
2
2
Threshold adjustment 1
1
2
2
.
.
0
0
4
4
R - W 0 to 100.0% 0
5
5
3
3
Threshold hysteresis 1
1
2
2
.
.
0
0
5
5
R - W 0 to 25.0% 0
5
5
4
4
Time delay 9
9
.
.
0
0
9
9
R - W 0 to 25.0 s 0
4.10.4 - Explanation of parameters specific
to the "brake control configuration"
:Zero frequency threshold
Adjustment range : 0 to 20.0 Hz
Factory setting : 1.0 Hz
Used to define a threshold below which the
frequency is considered to be zero.
:Threshold adjustment
Adjustment range : 0 to 100.0%
Factory setting : 0
Used to set the motor current threshold.
:Threshold hysteresis
Adjustment range : 0 to 25.0%
Factory setting : 0
Used to set the level of the hysteresis on the
motor current.
:Time delay
Adjustment range : 0 to 25.0 s
Factory setting : 0
Used to set the time between detection of
non-zero frequency and brake release.
5
5
1
1
5
5
2
2
5
5
3
3
5
5
4
4

Leroy-Somer DIGIDRIVE SE2.5T Specifications

General

Brand	Leroy-Somer
Model	DIGIDRIVE SE2.5T
Category	Inverter
Language	English