1492   Over speed protection

Created: 04 May 2016

Status: Discussion (red)

Part: Part 5 (2013-01; Edition 2)

Links:

Page: 33

Clause: 8.5.3

Paragraph:

Category: Issue for edition 3 of this part

Issue

This protection is defined in LN function as POVS but it has no LN class.

Proposal

Define LN class POVS as below:

Status Information
Str ACD Start
Op ACT Operate

Controls
OpCntRs INC Resettable operation counter

Settings
StrVal ASG Start value (speed)
OpDITmms ING Operate delay time
RsDITmms ING Reset delay time

Discussion Created Status
I support the new LN (overspeed prot. function). But revision 2.1 of part 7-4 does not have this LN. Therefore LN POVS shall be included in edition 3. 13 May 16 Discussion (red)

 

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