參數(shù)資料
型號(hào)： PW-83010P6-C10
廠商： DATA DEVICE CORP
元件分類： 運(yùn)動(dòng)控制電子
英文描述： AC MOTOR CONTROLLER, 110 A, XMA21
文件頁(yè)數(shù)： 3/23頁(yè)
文件大?。?/td> 460K
代理商： PW-83010P6-C10
11
Data Device Corporation
www.ddc-web.com
PW-8X010P6/8X030P6/8X075P6
H-07/05-0
mode then DISABLE / RESET must be held active while coming
out of sleep mode.
Note: SLEEP_MODE has an internal pull-up resistor. If the input
is not connected, it will default to logic high, turning the power
supply and the motor drive off.
VCC,VCC-RTN (INPUTS)
The VCC and VCC-RTN are power connections that supply input power
to the internal power supply, the gate drive and fault control circuits.
VBUS+, VBUS- (INPUTS)
VBUS+ and VBUS- are the high voltage power connections to the
output stage. The high voltage can be either unipolar (+V and
ground) or bipolar (+/- V). Care must be taken to ensure that the
transient bus voltage VBUS at the module terminals never
exceeds the absolute maximum supply ratings during switching
excursions. External capacitor filtering will be required (See
DDC’s Applications Note AN/H-7).
OUTPUT (OUTPUT)
Output is the power switch output that is connected to one input
of the motor and applies VBUS+, VBUS-, or high impedance to the
motor based on the state of the control inputs. It is capable of
sourcing or sinking up to the rated output current, and can with-
stand a short circuit to VBUS+ or VBUS- without any damage by
automatically turning itself off (high impedance state).
SHORT CIRCUIT PROTECTION
The PW-8X010P6, PW-8X030P6 and PW-8X075P6 modules
have provisions for complete short circuit protection from either a
hard or soft short to the VBUS+ or VBUS- lines. Each output tran-
sistor on all PW-8X010P6, PW-8X030P6 and PW-8X075P6 mod-
ules are protected from a hard (direct, low impedance) short to the
VBUS+ or VBUS- lines by circuitry that detects the de-saturation
voltage for that transistor during a short condition. Once a hard
short circuit condition is detected, the affected output transistor is
shut down and SC FAULT output is set active (logic low (L)). The
SC FAULT signal can be used by a controller as a signal to initiate
a fault routine to reset or shut down the system. The DISABLE /
RESET input can be used to shut down the gate drivers if a short
persists. If the AUTO RESET is tied to SC FAULT, the circuit will
automatically reset when a fault occurs. This inactivates SC FAULT
and reactivates the output transistor within the tcycle.auto time
period. If the short is still present, the circuit will repeat the shut
down and automatically reset until the short is clear.
Protection against a soft-short requires the addition of current
sensing Magnum Motor Drive modules and external circuitry.
When a soft short occurs, the external circuit can set DISABLE /
RESET low (L) to shut down the gate drivers.
PW-84010P6, PW-84030P6 AND PW-84075P6
I/O AND OPERATION
PW-84010P6, PW-84030P6 and PW-84075P6 modules can be
added to a motor drive to provide current monitoring and overcur-
rent protection capability. The following section describes the PW-
84010P6, PW-84030P6 and PW-84075P6 modules and their fea-
tures.
VDD, VDD-RTN
VDD and VDD-RTN supplies input power to the current amplifier.
VIRSENSE (OUTPUT)
VIRSENSE is an output that provides a voltage proportional to the
current passing through RSENSE. The voltage is scaled by a ref-
erence voltage VREF and is equal to VREF/2 to represent zero
current. A voltage greater than VREF/2 indicates a positive cur-
rent flow (positive voltage from RSENSE + to RSENSE -) through
RSENSE. See FIGURE 1B.
This VIRSENSE voltage is scaled by the input voltage at VIREF, where:
VIRSENSE = (VREF/2) + (VIRSENSE Gain) * (IRSENSE) or
VIRSENSE = (VREF/2) + (VREF / .504* RSENSE) * (IRSENSE)
Note: IRSENSE is current flowing through RSENSE (refer to Table 3
for RSENSE value). Zero amps in RSENSE is indicated when
VIRSENSE = VREF/2. A voltage greater (less) than VREF/2 indi-
cates a positive (negative) current flow through RSENSE with a
value defined by the VIRSENSE equation. VIRSENSE is electrically
isolated from the output stage. A positive (negative) current flow
from RSENSE + to RSENSE - produces a positive (negative) volt-
age measurement (See FIGURE 1B). When the power supply is
shut down (SLEEP_MODE input high), the voltage at VIRSENSE
will indicate 0V.
Note: During normal operation 0 Volts at VIRSENSE represents
maximum negative current.
VREF (INPUT)
A precision voltage reference from an external source is con-
nected to the VREF pin to set the output voltage scale for
VIRSENSE and VIRSENSE_ABS. Note: The accuracy of the VIRSENSE
and VIRSENSE_ABS outputs are subject to the accuracy and tem-
perature coefficient of VREF. These must be taken into account in
calculating the overall accuracy of VIRSENSE.
RSENSE+, RSENSE- (INPUTS)
The RSENSE+ and RSENSE- pins are connected to an internal
shunt resistor and monitoring circuitry. These pins can be con-
nected anywhere within the isolation restrictions on the pins
(600V to power pins, 2500V to logic pins). These pins are typi-
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