Allen-Bradley 1770-M10 Specifikace stáhnout pdf (Strana 188)

188 Rockwell Automation Publication XXXX-X.X.X - Month Year

Chapter 3 Network Communication

PowerFlex DC Drive

Typical Programmable Controller Configurations

Logic Command/Status Words

See parameter 1328 [Drive Logic Rslt] for more information.

Figure 124 - Logic Command Word

IMPORTANT

If block transfers are programmed to continuously write information to

the drive, care must be taken to properly format the block transfer. If

attribute 10 is selected for the block transfer, values will be written only

to RAM and will not be saved by the drive. This is the preferred attribute

for continuous transfers. If attribute 9 is selected, each program scan will

complete a write to the drives non-volatile memory (EEprom). Since the

EEprom has a fixed number of allowed writes, continuous block transfers

will quickly damage the EEprom. Do Not assign attribute 9 to continuous

block transfers. Refer to the individual communications adapter User

Manual for additional details.

Logic Bits

Command Description15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

xStop

(1)

0 = Not Stop

1 = Stop

xStart

(1)(2)

(1) A “0 = Not Stop” condition (logic 0) must first be present before a “1 = Start” condition will start the drive. The Start command acts

as a momentary Start command. A “1” will start the drive, but returning to “0” will not

stop the drive.

(2) This Start will not function if a digital input (parameters 13…144) is programmed for 2-Wire Control (option 5 “Run”, 6 “Run

Forward” or 7 “Run Reverse”).

0 = Not Start

1 = Start

xJog 0 = Not Jog

1 = Jog

x Clear Faults 0 = Not Clear Faults

1 = Clear Faults

x x Direction 00 = No Command

01 = Forward Command

10 = Reverse Command

11 = Hold Present Direction

x Local Control 0 = No Local Control

1 = Local Control

xMOP

Increment

0 = Not Increment

1 = Increment

x x Accel Rate 00 = No Command

01 = Use Accel Time 1

10 = Use Accel Time 2

11 = Use Present Time

x x Decel Rate 00 = No Command

01 = Use Decel Time 1

10 = Use Decel Time 2

11 = Use Present Time

x x x Reference

Select

(3)

(3) This Reference Select will not function if a digital input (parameters 131…144) is programmed for “Speed Sel 1, 2 or 3” (option 17,

18 or 19). Note that Reference Selection is “Exclusive Ownership”.

000 = No Command

001 = Ref. 1 (Spd Ref A)

010 = Ref. 2 (Spd Ref B)

011 = Ref. 3 (Preset Spd 3)

100 = Ref. 4 (Preset Spd 4)

101 = Ref. 5 (Preset Spd 5)

110 = Ref. 6 (Preset Spd 6)

111 = Ref. 7 (Preset Spd 7)

xMOP

Decrement

0 = Not Decrement

1 = Decrement

1 2 ... 183 184 185 186 187 188 189 190 191 192 193 194

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