Datasheet > BD25A-AC

BD25A-AC

更新时间： 2024-02-01 02:43:51

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其他 - ETC		放大器
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描述
BRUSHLESS SERVO AMPLIFIERS

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BD25A-AC 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
Reach Compliance Code：	unknown	风险等级：	5.67
JESD-609代码：	e3	端子面层：	MATTE TIN
Base Number Matches：	1

BD25A-AC 数据手册

BDC30A Series

DESCRIPTION: The BD25A20AC Series PWM servo amplifiers are designed to drive brushless DC motors at a high switching

frequency. They are fully protected against over-voltage, over-current, over-heating and short-circuits. All models interface with digital

controllers that have a digital PWM output. PWM IN determines the output duty cycle. DIR IN determines the direction of rotation. They

require a single AC power supply. A single red/green LED indicates operating status. The current limit can be set by DIP switches.

SPECIFICATIONS:

All BD25A20AC specifications are identical to the BD25A20 specifications (see BD30A Series) except for:

MODEL

POWER STAGE SPECIFICATIONS

BD25A20AC

AC SUPPLY VOLTAGE

30 - 125 VAC, 50 – 60 Hz

SHUNT RESISTOR

10 Ω @ 50 W

185 VDC

SHUNT SWITCH ON VOLTAGE

BUS CAPACITANCE

3600 µF

SHUNT FUSE (d = .25 inches, L = 1.25 inches)

BUS FUSE (5x20 mm)

3 A Motor Delay rated @ 250 VAC

16 A slow-blow rated @ 250 VAC

MECHANICAL SPECIFICATIONS

POWER CONNECTOR

SIGNAL CONNECTOR

Screw terminals

Molex connector

7.35 x 4.23 x 2.45 inches

186.7 x 107.4 x 62.2 mm

2.5 lb.

SIZE

WEIGHT

1.14 kg

These amplifiers contain a rectifier bridge and filter capacitors to generate the DC bus internally from the AC input power. The

DC bus voltage is 1.4 times AC voltage (RMS), e.g. 170 VDC from 120 VAC. During braking much of the stored mechanical

energy is fed back into the power supply and charges the output capacitor to a higher voltage. If the charge reaches the

amplifier's over-voltage shutdown point, output current and braking will cease. To ensure smooth braking of large inertial loads,

a built-in "shunt regulator" is provided in the BD25A20AC. The shunt regulator will switch-on the internal power resistor when

the bus voltage reaches 185 VDC. This resistor then dissipates the extra energy of the DC bus.

APPLICATION NOTE: Contact factory for information regarding the use of the current monitor pin (P1-15).

OPTICAL INPUT SIGNAL ISOLATION: PWM, DIR, INH, FAULT inputs are always isolated from the power section. On the

BD25A20AC series the Hall sensor inputs (P1-10 through 14) are also isolated.

ORDERING INFORMATION:

Models: BD25A20ACX

X indicates the current revision letter.

TYPICAL SYSTEM WIRING: See section “G”.

MOUNTING DIMENSIONS: See page F-11.

B-26

123 4 5 6 7

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