Miki Pulley BEW-W Types
Specifications
| Model | BEW-4W | |||||||
|---|---|---|---|---|---|---|---|---|
| Input voltage | AC100V | ± 10％ 50 Hz/60 Hz | ● | ● | ||||
| AC200V | ● | ● | ||||||
| AC400V | ● | ● | ||||||
| Maximum input voltage | AC510V | |||||||
| Rectification method | For both half- and full-wave rectification | |||||||
| Half-wave | Full-wave | Half-wave | Full-wave | Half-wave | Full-wave | |||
| Output voltage | DC45V | DC90V | DC90V | DC180V | DC180V | DC360V | ||
| Output current | When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃ | DC3.0A (DC2.5A) | ||||||
| Output Wattage | When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃ | 135W (112W) | 270W (225W) | 270W (225W) | 540W (540W) | 540W (540W) | 1080W (900W) | |
| Size settings | Voltage specifications numbers in parentheses are input voltages | DC45V (AC100V, half-wave) |
DC90V (AC100V, full-wave) |
DC90V (AC200V, half-wave) |
DC180V (AC200V, full-wave) |
DC180V (AC400V, half-wave) |
DC360V (AC400V, full-wave) |
|
| ●: Applicable △: Applicable depending on model of clutch or brake | 01 | ● | ● | ● | ● | ● | ||
| 02 | ● | ● | ● | ● | ● | |||
| 03 | ● | ● | ● | ● | ● | |||
| 04 | ● | ● | ● | ● | ● | |||
| 05 | ● | ● | ● | ● | ● | |||
| 06 | ● | ● | ● | ● | ● | |||
| 08 | ● | ● | ● | ● | ● | |||
| 10 | △ | ● | ● | ● | ● | |||
| 12 | △ | ● | ● | ● | ● | |||
| 14 | △ | ● | ● | ● | ● | |||
| 16 | △ | ● | ● | ● | ● | |||
| 18 | △ | ● | ● | ● | ● | |||
| 20 | △ | ● | ● | ● | ● | |||
| 25 | △ | ● | ● | ● | ● | |||
| Applied clutches/brakes | MIKI PULLEY electromagnetic -actuated clutches and brakes Rated voltage DC 45/90/180 V |
Spring-actuated brake | ||||||
| Insulating resistance | Between terminal and body | DC 500 V, 100 M Ω with Megger | ||||||
| 2200 V AC, 50 Hz, 1 min. | ||||||||
| Usage environment | With no condensation | -20 ～ +60℃ / 10 ～ 90%RH | ||||||
| Mass | Per product | 0.045 kg | ||||||
Dimensions
Structure
Terminals and Functions
| Terminal symbol | Terminal name | Function description |
|---|---|---|
| 1－2 | Power supply input terminal | Connector for a commercial power supply |
| 3－4 | Output terminal | Connector for an electromagnetic clutch or brake |
Characteristics
For Both Half-wave Rectified and Full-wave Rectified
For BEW-4W types, you can select between half-wave rectified and fullwave rectified by changing the connections of the wiring as shown in the figure at right.
These power supply devices are high Wattage and allow a wide range of voltage inputs, from low voltage to high. As a result, a wide variety of electromagnetic clutches and brakes can be handled by a single BEW-4W power supply alone.
You can either focus on the type of brake, assuming you will rewire, or conversely, handle a variety of types of brakes with a BEW-4W power supply alone.
How to Calculate Output Voltage
Output voltage = Input voltage × a (a set coefficient)
* a (set coefficient) = 0.45: half-wave rectified/0.9: full-wave rectified
(Ex.)
Half-wave: AC200V × 0.45 = DC90V
Full-wave: AC100V × 0.9 = DC90V
Note that when the rated voltage of the electromagnetic coil does not match the output voltage calculated above, you will not be able to obtain the electromagnetic clutch/brake characteristics given in the specifications.
Wiring Methods and Timing Charts
Primary Control
Secondary Control
