Rockwell Automation 1395 Digital DC Drive FRN 5-10.10/9.30 User Manual

Page 197

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Chapter 7

Programming Parameters

7-31

Parameter 160 – CEMF Reference [CEMF Reference]

Internal units : 4096 = 1000h = 100% motor CEMF

Programming Terminal units: Percent of full motor CEMF.
Description : This word supplies an external CEMF reference to the

flux control. This input would be used when it is desired to operate

the field flux control in the CEMF mode of operation. The Drive will

use this input when the CEMF Control Enable bit is set in Flux Mode

Select (Parameter 627).
The flux control will use the CEMF reference input as both the

variable in the flux calculation and also as the reference input to the

CEMF regulator. The flux calculation produces a flux command that

is inversely proportional to speed when motor speeds are above the

Field Weakening Speed (Parameter 686).

Parameter 161 – Process Trim Reference [Process Trim Ref]

Internal units : 4096 = 1000h = 1pu

Programming Terminal units : None
Description : This is the reference input value for Velocity Trim.

When the Process Trim function has been enabled by setting the Trim

Enable bit in the Logic Command parameter, then this input will be

used by the process trim PI regulator. Process trim will then update

the Process Trim Output (Parameter 119) based on the value of this

input.

Parameter 162 – Process Trim Feedback [Process Trim Fdbk]

Internal units : 4096 = 1000h = 1pu

Programming Terminal units : None

Description : This is the feedback value for Process Trim. When the

Process Trim has been enabled by setting the Process Trim Enable bit

in the Logic Command parameter, then this input will be used by the

process trim PI regulator. Process Trim will then update the Process

Trim Output parameter based on the value of this input.

Parameter 163 – Velocity Indirect 1 [Vel Indirect 1]

Internal units :

Programming Terminal units :

Description : This is the Fast Sink, with its pointer in Parameter 600,

Velocity Parameter Select 1.

Parameter 164 – Velocity Indirect 2 [Vel Indirect 2]

Internal units :

Programming Terminal units :

Description : This is the Fast Sink, with its pointer in Parameter 601,

Velocity Parameter Select 2.

Parameter 165 – Velocity Indirect 3 [Vel Indirect 3]

Internal units :

Programming Terminal units :

Description : This is the Fast Sink, with its pointer in Parameter 602,

Velocity Parameter Select 3.

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