| Application |
| Overhead travelling cranes |
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Overhead travelling cranes [Hoisting equipment]
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 Application samples
Overhead travelling cranes usually use the following operating methods:
[Lifting motors]
- Vector control without sensor
- Brake functions
- Preset speed control
- High speed operation at light weight
[Traversing and running motors]
- S pattern accelertion/deceleration
- Acceleration/deceleration 1 and 2 switching
 Setting table for inverters (VFAS1)
Overhead travelling cranes usually have remote control unit.
|
Button
|
Action
|
UP
DOWN
|
Lifting
|
LEFT
RIGHT
|
Traversing
|
FORWARD
REVERSE
|
Running
|
| Title |
Function |
Setting range |
Recommended setting |
  |
Base frequency 1 |
25 ot 500 Hz |
52 |
|
Base frequency voltage 1 |
200V input model: 50 to 330 V
400V input model: 50 to 660 V |
Depends on the motor |
  |
Dynamic braking selection |
0 to 2 |
1 (Enabled) |
 |
Dynamic braking resistance |
0.5 to 1000 ohm |
Depends on the resistor |
 |
Dynamic braking capacity |
0.01 to 600 kW |
Depends on the resistor |
   |
Input terminal function selection 7 (S3) |
0 to 135 |
20 |
   |
Light-load high-speed operation selection |
0 to 4 |
Depends on the system |
 |
Braking mode selection |
0 to 3 |
Depends on the system |
  |
Motor rated capacity (motor name plate) |
0.10 to 500.0 kW |
Depends on the motor |
 |
Motor rated current (motor name plate) |
0.1 to 2000 A |
Depends on the motor |
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Motor rated rotational speed (motor name plate) |
100 to 60000 min-1 |
Depends on the motor |
Auto-tuning function (VFAS1)
After setting these parameters, please perform the following steps.
(1) Set F400(Auto-tuning 1) = 4(Motor constant auto calculation).
(2) Connect the motor wiring.
(3) Set F400 = 2(Continue operation after auto-tuning).
(4) Turn on the start signal.
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