Rockwell Automation 1336S Plus FRN 1.xx-5.xx User Manual

Page 126

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5–48

Programming

[PI Ref Select]

The source of the PI reference is selected with this
parameter. The value from the selected reference is
the “set point” for the Process PI regulator.

If using firmware version 4.01 and up, the drive is
capable of responding to a loss of the 4-20 mA
signal used as either a PI reference or PI feedback.
Response to loss of 4-20 mA signal is controlled by
programming and requires the following:

a) [Speed Control] must be set to “Process PI”

and

b) Either [PI Ref Select] or [PI Fdbk Select] must be

set to “4-20 mA.”

If both of the above conditions are met, the signal
loss response is controlled by the setting of [4-20
mA Loss Sel]. If this parameter is set to “Stop/Fault,”
loss of input will cause the drive to stop and issue a
Hertz Err Fault. Loss of input while any other setting
of [4-20 mA Loss Sel] is chosen will cause the drive
to activate the alarm bit (bit 6 of [Drive Status] and
bit 13 of [Drive Alarm]) and output programmed
[Minimum Freq].

No signal loss protection is offered for the 0-10V
input.

Parameter Number

215

Parameter Type

Read/Write

Factory Default

“Preset 1”

Units

Display Drive

“Adapter 1” 6
“Adapter 2” 7
“Adapter 3” 8
“Adapter 4” 9
“Adapter 5” 10
“Adapter 6” 11

“Preset 1-7” 12-18

“Remote Pot” 1

“0-10 Volt” 2

“4-20 mA” 3

“Pulse Ref” 4

“MOP” 5

[PI Fdbk Select]

The source of the PI feedback is selected with this
parameter. It identifies the input point for the process
feedback device.

Parameter Number

216

Parameter Type

Read/Write

Factory Default

“0-10 Volt”

Units

Display Drive

“Adapter 1” 6
“Adapter 2” 7
“Adapter 3” 8
“Adapter 4” 9
“Adapter 5” 10
“Adapter 6” 11

“Preset 1-7” 12-18

“Remote Pot” 1

“0-10 Volt” 2

“4-20 mA” 3

“Pulse Ref” 4

“MOP” 5

[PI Reference]

This parameter displays the current value of the
reference selected by [PI Ref Select].

Parameter Number

217

Parameter Type

Read Only

Display Units / Drive Units

0.01 Hertz / 32767 = Maximum Freq Forward

Factory Default

None

Minimum Value

–400.00 Hz

Maximum Value

400.00 Hz

Process PI

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