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参数资料
| 型号： | MC3PHACVDWE |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 23/36页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR CONTROLLER 28-SOIC |
| 标准包装： | 26 |
| 应用： | AC 电机控制器，3 相 |
| 输出数： | 1 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
| 产品目录页面： | 808 (CN2011-ZH PDF) |
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Operation
Table 6. User Interface Variables for Use with PC Master Software (Continued)
Name
Address
Read/
Write
Size
(Bytes)
Description
Valid Data
Maximum allowable modulation index
Maximum voltage
$0075
R/W
1
value
$00–$FF
%Maximum voltage = value/$FF
V Bus voltage (5), (10)
$0079
R
2
DC bus voltage reading
$000–$3FF
Specifies the delay time after a fault
Fault timeout
$006A
R/W
2
condition before re-enabling the
motor.
$0000–$FFFF
Fault timeout = value * 0.262 sec
Fault timer
V Bus decel value (10)
V Bus RBRAKE
value (10)
V Bus brownout
value (10)
V Bus over voltage
value (10)
Speed in ADC
value (5)
$006D
$00C9
$0064
$0066
$0068
$0095
R
R/W
R/W
R/W
R/W
R
2
2
2
2
2
2
Real-time display of the fault timer
Elapsed fault time = value * 0.262 sec
V Bus readings above this value result in
reduced deceleration.
V Bus readings above this value result in
the RBRAKE pin being asserted.
V Bus readings below this value result in
an under voltage fault.
V Bus readings above this value result in
an over voltage fault.
Left justified 10-bit ADC reading of the
SPEED input pin.
$0000–$FFFF
$0000–$03FF
$0000–$03FF
$0000–$03FF
$0000–$03FF
$0000–$FFC0
Bit field indicating which setup
Setup (7)
$00AE
R
1
parameters have been initialized
$E0–$FF
before motion is permitted
Bit field indicating the current state of
Switch in (7)
$0001
R
1
the start/stop and forward/reverse
$00–$FF
switches
Reset status (6), (7)
Version
$FE01
$EE00
R
R
1
4
Indicates cause of the last reset
MC3PHAC version
$00–$FF
ASCII field
1. The commanded PWM frequency cannot be written until the PWM outputs exit the high-impedance state. The default PWM
frequency is 15.873 kHz.
2. The PWM output pins remain in a high-impedance state until this parameter is specified.
3. This parameter must be specified before motor motion can be initiated by the MC3PHAC.
4. This is a write-once parameter. The first write to this address will execute normally. Further attempts at writing this
parameter will result in an illegal operation response from the MC3PHAC.
5. The value of this parameter is not valid until the PWM outputs exit the high-impedance state.
6. The data in this field is only valid for one read. Further reads will return a value of $00.
7. See register bit descriptions following this table.
8. Acceleration is an unsigned value with the upper seven bits range of $00 to $7F = acceleration value of 0 to
127 Hertz/second. The lower nine bits constitute the fractional portion of the acceleration parameter. Its range is $000 to
$1FF which equals 0 to ~1. Therefore, the range of acceleration is 0 to 127.99 Hertz/second.
9. Commanded motor frequency and actual frequency are signed values with the upper byte range of
$00 to $7F = frequency of 0 to 127 Hz. The lower byte is the fractional portion of the frequency. Its range is $00 to $FF
which equals 0 to ~1.
10. V Bus is the voltage value applied to the DC_BUS analog input pin. The analog-to-digital converter is a 10-bit converter with
a 5 volt full scale input. The value is equal to the voltage applied to the DC_BUS input pin/V REF * $03FF.
MC3PHAC Monolithic Intelligent Motor Controller, Rev. 2
Freescale Semiconductor
23
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