GE Industrial Solutions 6KCV300WPD User Manual

Page 160

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GEI-100340

Description

Interruptable monostable timer.

Timer is activated on every rising edge of input g in the following way:

l

On the rising edge of input g the following operations are performed:

l

Reading of the activation time from input t.

l

Zero setting of the internal variable act (output act).

l

Enable of the timer, internal variable

is set TRUE (output

l

Output o is set TRUE.

l

After t milliseconds are elapsed, during which input g is always TRUE, timer outputs are set

in the following way:

l

output o is set FALSE

l

output

is set FALSE

l

ouput act stops on the last value reached (t value)

l

If

the timer is active, input g becomes FALSE, the timer is immediately disabled and

the outputs are set in the following way:

l

output o is set FALSE

l

output

is set

l

ouput act stops on the last value reached

When the timer is active, ouput

is TRUE, ouput act indicates the number of cycles elapsed from

operations start. When output

is FALSE output act is not significant.

Input

is read only in the cycle in which the rising cycle of input g is checked. Therefore, if input

changes

while timer is enabled, output

is TRUE, the new value is not considered. This

will be used in the

next activation timer.

All times are expressed in milliseconds. Therefore, if input

is set to 12, time output o becomes TRUE for 12

milliseconds and output act changes from 0 to 12.

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