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Using the state machine function, Using the state machine function -8 – Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual

Page 178

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10-8

Using the Function Block

Figure 10.7
Delayed Start with a Ramp to Speed Example

In addition, Start/Jog Mask (parameter 126) should be set to
11111110.11111111.

Using the State Machine
Function

The state machine function lets you use a decision table to select
which value to use for the output based on the values of In2 and a
timer on In1. Figure 10.8 shows the state machine function block.

Figure 10.8
State Machine Function Block

As an example, you could use the state machine function block to set
up a speed profiler such as the one shown in Figure 10.9.

Timer On = 15 seconds

Start Is
Issued

Signal

Time

Time

Speed

0

0

0

0

200

Func 1 Eval Sel

0 – 17

198

Function In1

199

Func 1 Mask/Val

I

V

State Machine Function Block

203

Func 2 Eval Sel

0 – 17

201

Function In2

202

Func 2 Mask/Val

I

V

212

Function Sel

In1

In2

206

Func 3 Eval Sel

0 – 17

204

Function In3

205

Func 3 Mask/Val

I

V

In3

207

Function In4

208

Function In5

In4

In5

213

Function
Output 1

8

And In1

Then this

If In2 is: Timer is:

output is used:

False

False

In3

False

True

In6

True

False

In7

True

True

In8

209

Function In6

210

Function In7

In6

In7

211

Function In8

In8

In4

Off Time

In5

On Time