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○
1
Door closes, elevator begins to run, and
operation contactor and STO are ON
○
2
STO activation completed
○
3
Drive outputs, starting zero-speed begins
○
4
Brake contactor is ON
○
5
Starting zero-speed ends, and
acceleration begins
Suggested Setting Value:
Pr.03-18 (0.200 sec.) Delayed Time for
Leveling Switch
Pr.04-09 (1.5 m/s
2
) Inspection Deceleration
Pr.04-10 (0.2 m/s
2
) Inspection Acceleration
2
Pr.04-11 (0.1 m/s
) Re-leveling Deceleration
Methods of Accurate
Leveling for Direct
Docking:
1. Executes hoistway
auto-tuning
2. Executes upper and lower
re-leveling for each floor to
make leveling accurate.
3. Executes hoistway
auto-tuning again. Pr.04-03
(Hoistway Auto-tuning Speed)
should not be larger than 0.2
m/s.
Speed Control Timing Diagram – IM Direct Docking
○
6
Decelerates to zero speed, and
stopping zero-speed begins
○
7
Brake contactor is OFF
○
8
Stopping zero-speed ends, and
decreasing torque at stop begins
○
9
Decreasing torque at stop ends,
and drive stops outputting
Pr.05-25 (0.5 sec.) Door Open Delayed Time at Stop
Pr.13-42 (0.1 sec.) IM Mechanical Brake Release Delay
Time / PM Position Control Delay Time
Pr.13-43 (0.2 sec.) Mechanical Brake Engage Delay Time
Pr.13-44 (0.01 sec.) Drive Output Delay Time
NOTE:
1. If elevator starts with a jerk when brake releases, set Pr.13-54 (Zero Speed Activation Time) to 2.0 seconds,
and increase Pr.13-31 (Zero Speed at Start-up Bandwidth). Note that a too large Pr.13-31 value would cause
a jerk when elevator starts. It is suggested to increase Pr.13-31 to a value that elevator slightly shakes when
starting at top or bottom floor. Then, set Pr.13-31 = [(Pr.13-31 setting value -1) x 0.9], and set Pr.13-54 to
initial settings. In principle, set Pr.13-31 as large as possible, but cannot be too large that causes a jerk when
elevator starts. If jerk still occurs when brake releases, you can adjust Pr.13-44 (Drive Output Delay Time),
Pr.13-54 (Zero Speed Activation Time), and Pr.13-42 (IM Mechanical Brake Release Delay Time).
2. If brake engaged speed is slower, it may cause stopping zero-speed has already ended before brake
engages, further making motor run after stop and a jerk at stop occurs. In this case, set Pr.13-43 (Mechanical
Brake Engage Delay Time) to 0 first. If this problem still occurs, set Pr.13-55 (Zero Speed Stopping Time) to a
larger value.
3. If main motor starts to vibrate after brake is fully engaged, set Pr.13-57 (Time for Decreasing Torque at Stop)
to 5 seconds. If vibration reduces, change Pr.13-57 to a proper value. The larger the Pr.13-57 setting value,
the slower the elevator opens its door.
Chapter 12 Descriptions of Parameter Settings | IED-S
○
10
Pr.13-57 (Time for Decreasing Torque at Stop) is time that
triple rated current decreases to zero. The current of
stopping zero-speed is lower so it usually decreases to zero
in advance.
○
Operation contactor and STO are OFF
11
○
STO deactivation completed, and operation ends
12
○
Door begins to open
13
12-13-11
Pr.13-45 (0.01 sec.) Operation
Contactor Off Delay Time
Pr.13-54 (0.4 sec.) Zero Speed
Activation Time
Pr.13-55 (0.5 sec.) Zero Speed
Stopping Time
Pr.13-57 (0.0 sec.) Time for
Decreasing Torque at Stop
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