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Rockwell Automation 1405-M620 Operating Instructions User Manual

Page 19

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Table 9

Key

Switch

Function

Function
Indication

Key Press Duration

“+”

Skip to the next measured parameter

Approx. 0 to 2 seconds

Auto-sequencing display mode: enable / disable

- “r”

Approx. 2 to 4 seconds

Re-set peak current values

- “c”

Approx. 4 to 8
seconds

E

P

cos

ϕ

A

V

+

F

Auto-sequencing display
enabled/disabled

Publication 1405-IN002C-EN-P - November 2004

Bulletin 1405 (M620) Operating Instructions 19

The display can be manually skipped to the next measured parameter
in the sequence, regardless of whether the auto-sequencing display
mode is enabled or disabled. Similarly, the stored peak current values
can be deleted at any time.

E

P

cos

ϕ

A

V

+

F

Reset peak current value

The setting of the initial values of the energy counters can be used for
simply resetting any of them to zero, while the instrument is in set-up
mode. To do this, first the “-“key is used to shift the digit to the
left-most position. Then the “+” key is pressed to scroll the digit from
0 upward, until the function character “c” appears in the bottom left
digit position. Since the counter capacity is limited to 0999.999 MWh,
when it reaches 1000.000 MWh, it causes the counter to overflow,
automatically resetting it to 0000.000 MWh. This value is then locked
and stored by pressing the “F” key. Energy counting then starts from
0000.000 MWh. This setting is to be done for all three energy counters
separately.