S1: Brake Sequence; S: Elevator Parameters - YASKAWA L1000V Technical Manual

5.11 S: Elevator Parameters

This section describes various functions and faults needed to operate an elevator application: braking sequence, slip
compensation, optimal adjustments at start and stop, Rescue Operation, and elevator-related faults.
u S1: Brake Sequence
The drive supports braking sequences using an analog input terminal to control torque compensation at start (H3-
14), and braking sequences that do not require an analog input to set the torque compensation level. Refer to
Sequence on page 90 for details.
n
S1-01: Zero Speed Level at Stop
Determines the speed to begin applying DC Injection when the drive is ramping to stop (b1-03 = 0). Set as a percentage
of the maximum output frequency (E1-04).
No.
S1-01
Parameter S1-01 sets the starting speed for DC Injection Braking at stop. Once the output speed falls below the setting of
S1-01, the amount of DC Injection Braking current set in S1-03 is injected into the motor for the time set in parameter
S1-05.
n
S1-02: DC Injection Current at Start
Determines the amount of current to use for DC Injection at start. Set as a percentage of the drive rated current.
No.
S1-02
n
S1-03: DC Injection Current at Stop
Determines the amount of current to use for DC Injection at stop. Set as a percentage of the drive rated current. When
using OLV Control, the DC injection current is determined by multiplying S1-03 by S3-25 or S3-26.
No.
S1-03
n
S1-04: DC Injection Time at Start
Determines how long the drive should perform DC Injection at start. During this time, the drive allows motor flux to
develop, which is essential for applying torque quickly once the brake is released. A setting of 0.00 disables S1-04.
No.
S1-04
n
S1-05: DC Injection Time at Stop
Determines how long the drive should perform DC Injection at stop. A setting of 0.00 disables S1-05.
No.
S1-05
n
S1-06: Brake Release Delay Time
Determines the time that must pass after an Up/Down command is entered before the output terminal set for "Brake
control" (H2- = 50) is triggered.
Adjusting this delay time can help when there is not enough time to develop the appropriate amount of motor flux. Be
sure to also increase the time S1-04 when setting S1-06 to relatively long delay time.
No.
S1-06
YASKAWA EUROPE SIEP
Parameter Name
Zero Speed Level at Stop
Parameter Name
DC Injection Current at Start
Parameter Name
DC Injection Current at Stop
Parameter Name
DC Injection / Position Lock Time at Start
Parameter Name
DC Injection / Position Lock Time at Stop
Parameter Name
Brake Release Delay Time
YASKAWA AC Drive L1000V Technical Manual
5.11 S: Elevator Parameters
Brake
Setting Range Default
0.000 to 9.999% Determined by A1-02
Setting Range Default
0 to 75%
Setting Range Default
0 to 100%
Setting Range Default
0.00 to 10.00 s
Setting Range Default
0.00 to 10.00 s
Setting Range Default
0.00 to 10.00 s
=
50%
50%
0.40 s
5
0.60 s
0.20 s
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