4.7 Setup Procedure for Elevator Applications
96 YASKAWA SIEPYEULA5001C LA500 Technical Manual
Figure 4.15 Brake Sequence Timing Diagram
Table 4.7 Timing Zones for Brake Sequence Timing Diagram
Timing Zone Description
t1
Up or Down command is issued.
Safe Disable terminals H1-H2-HC must be set and Baseblock must be disabled (digital inputs set to H1-xx = 8 or 9).
Speed reference must be selected by multi-function input terminals.
Output contactor control signal is set [H2-xx = 51] by the drive.
Drive waits for the “Motor Contactor Feedback” signal [H1-xx = 56] to be issued. If the motor contactor feedback is not received within t1, or if the
feedback signal is on before the contactor control command has been issued, an SE1 fault is triggered.
If the motor contactor feedback signal is not used, then the drive waits for the operation start delay time set in S1-10 to pass, then proceeds to the
next step.
t2
After the delay time set in S1-10 has passed, the drive outputs current to the motor.
DC Injection Braking or Position Lock begins.
After the brake release delay time set in S1-06 has passed, the drive sets the “Brake Control” output [H2-xx = 50] in order to release the brake.
t3
DC Injection Braking or Position Lock will continue until:
• The time S1-04 has elapsed,
• Or the time S1-06 has elapsed if S1-06 > S1-04 (this setting should be avoided since the motor could be driven against the applied brake).
t4 The drive accelerates up to the selected speed. The speed is kept constant until the leveling speed is selected.
t5 Leveling speed is selected. The drive decelerates to the leveling speed and maintains that speed until the Up or Down command is removed.
t6 The Up or Down signal is cleared. The drive decelerates to zero speed.
t7
The motor speed reaches the zero speed level (S1-01).
DC Injection Braking or Position Lock is then executed for the time set in S1-05.
After the delay time to apply the brake set in S1-07 has passed, the drive clears the “Brake Control” output [H2-xx = 50]. The brake applies.
t8 The drive continues DC Injection or Position Lock until the time S1-05 has passed. When S1-05 has passed the drive output is shut off.
t9
After the delay for the magnetic contactor set in S1-11 has passed, the drive resets the output terminal set for “Output Contactor Control” [H2-xx =
51].
The Safe Disable Inputs can be cleared and Baseblock can be enabled.
◆ Rescue Operation
■ Overview
In the event of a power outage, Rescue Operation allows the elevator to travel to the nearest floor by switching to
a backup battery or UPS (Uninterruptable Power Supply) for power.
An input terminal set for Rescue Operation (H1-xx = 55) can be used to initiate Rescue Operation. During Rescue
Operation, the drive uses the speed reference set in d1-25 to travel to the nearest floor.
NOTICE: Equipment Hazard. Do not use the Rescue Operation feature for extended periods. Failure to comply can result in
drive heat sink overtemperature alarms (oH).
NOTICE: Equipment Hazard. When changing parameters while the drive is supplied from the rescue operation power supply,
wait at least 5 s after entering parameters before switching off the power supply. Instantly switching off the power can cause
parameter settings corruption that can only be resolved by initializing the drive. Failure to comply can cause erroneous drive
performance.
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