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參數(shù)資料
| 型號： | PW-83075P6NEW |
| 英文描述： | Drives (Power Amplifiers)|3-Phase Torque Controller. Small Plug In Hybrid |
| 中文描述： | 驅(qū)動器（功率放大器）| 3相轉(zhuǎn)矩控制器。小型插入式混合動力 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大?。?/td> | 342K |
| 代理商： | PW-83075P6NEW |
10
Data Device Corporation
www.ddc-web.com
PW-8X010P6/8X030P6/8X075P6
D-02/03-0
INTRODUCTION
The PW-8X010P6, PW-8X030P6 and PW-8X075P6 Magnum
families are a series of universal modular half-bridge motor
drives intended for use with brush, brushless DC and AC induc-
tion motors in ground, sea and aerospace applications.
The PW-8X010P6, PW-8X030P6 and PW-8X075P6 motor
drives contain an isolation barrier between the power and con-
trol stages, which attenuates ground noise generated from the
high speed, high power switching. All signals from the control to
the power sections are isolated from power and ground of the
other section.This eliminates false triggering of the input signals
and any need for creative grounding schemes.The isolation bar-
rier also allows the user to operate the output stage from either
unipolar or bipolar power supplies without level shifting the input
signals. A built in power supply located in the control stage pro-
vides power to all electronics in the power stage.This eliminates
the need for refresh cycles or external power supplies for the
gate drive circuitry and allows switching duty cycles from 0 -
100%. (Reference FIGURES 1A, 1B, 1C)
The output power transistors on all modules are protected from a
short circuit applied to the output pin. When a short circuit condition
is detected, the output transistors are shut down and a flag SC
FAULT is made active (logic low (L)) indicating a short has occurred.
The PW-84010P6, PW-84030P6 and PW-84075P6 modules con-
tain additional current sensing circuitry that can monitor either motor
current or DC bus current. The output voltage of the current sens-
ing circuit can be used as a feedback signal in a servo drive to cre-
ate a torque loop (Reference FIGURE 1B).
All output power transistors can be protected from regenerative
bus overvoltage when utilizing dynamic braking with the addition
of one PW-85010P6, PW-85030P6 or PW-85075P6 module.This
module contains an overvoltage switch that is enabled when an
overvoltage condition is detected. This switch is normally wired
to an external (user supplied, application specific) load dump
resistor to provide a load across the high voltage bus when over-
voltage is detected. During an overvoltage condition, the status
flag REGEN_STATUS is active (logic high (H)) indicating an over-
voltage condition is occurring. (Reference FIGURE 1C)
PW-8X075P6, PW-8X030P6 AND PW-8X010P6
I/O AND OPERATION
UPPER, LOWER (INPUTS)
UPPER and LOWER are active high CMOS Schmitt-trigger
inputs that control the gate drives of the output transistors (TTL
compatibility requires external 10K pull-up resistors). Each input
is electrically isolated from the output. A dead band, as shown
in FIGURE 4, between turn off and turn on of UPPER and
LOWER inputs is necessary to prevent output shoot through
conduction.
SC FAULT (OUTPUT)
SC FAULT is an active low open collector output signal that indi-
cates when the output of the module has experienced a short cir-
cuit
condition.
SC
FAULT
DISABLE/RESET is made active (L). The signal is inactive (high
impedance) during normal operation. See SHORT CIRCUIT
PROTECTION for more detail.
will
remain
active
until
DISABLE / RESET (INPUT)
DISABLE / RESET is an active low CMOS Schmitt-trigger input.
When DISABLE / RESET is held active it does two things: 1.)
Resets the SC FAULT (if it was active), and 2.) Disables the out-
put (makes the output high impedance). If this line is used sole-
ly to clear SC FAULT then it only needs to be pulsed active. The
duration of the DISABLE / RESET active pulse must be at least
tpw.reset to ensure that SC FAULT is cleared properly.When this
line is inactive, the OUTPUT is allowed to respond to the other
control lines of the module (UPPER, LOWER, SLEEP_MODE).
Note: TTL compatibility requires an external pull-up resistor.
AUTO RESET (INPUT)
AUTO RESET is an active low (L) input. When AUTO RESET is
tied to SC FAULT the protection circuit will reset automatically
after the short circuit fault has occurred, and a delay period,
tcycle.auto, has expired. This automatic reset enables the output
to respond to the input commands. See SHORT CIRCUIT PRO-
TECTION for more detail.
SLEEP_MODE (INPUT)
SLEEP_MODE is an active high input that turns the internal
power supply off. A logic low (L) enables the power supply and
allows the motor drive to operate normally.
A logic high (H) on the SLEEP_MODE input disables the internal
power supply, disabling the motor drive output. No damage will
occur to the motor drive during turn on or turn off of the power
supply. Additionally, no special power up sequence is required.
The UPPER and LOWER logic gate driver inputs should not be
active while transitioning in and out of sleep mode. If the UPPER
and LOWER logic inputs must be active while entering sleep
t
dead
50%
UPPER
LOWER
50%
50%
50%
t
dead
FIGURE 4. PW-8X010P6, PW-8X030P6 AND
PW-8X075P6 DEAD BAND REQUIREMENT
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