Eaton easySafety, Manual

Page: 293 / 695

OT, operating hours counter
289
02/16 MN05013001Z EN
OT, operating hours
counter The function block is used to record the operating hours of
independent events or states. The status of the operating
hours counter is also retained when in a de-energized state.
As soon as the enable coil of the function block is active, the
easySafety counts the hours in minutes, although the display
only shows hours.
easySafety allows the use of up to 4 operating hours
counters.
Function block
Figure 132: Operating hours counter function block
a Coil OT..EN: Enables the operation of the function block.
b Coil OT..RE: Resets the actual value to 0.
c Input OT..I1: Sets the upper limit setpoint.
d Contact OT..Q1: Closes on reaching or exceeding the upper
limit setpoint.
e Output OT..QV: Outputs the current counter value.
Wiring of the function block
You wire the function block in the standard circuit diagram
with its coils and contact.
Example of an operating hours counter:
Figure 133: Wiring the function block coils
EN
OT...
Operating Time
a
b
c
d
e
RE
Q1
>I1
QV>
DW
DW
IS10-----------------------------
Ä
OT03EN
M 42-----------------------------
Ä
OT03RE