Omron E5CN User Manual page 33

Setting Level Configuration and Key Operations
Protect Level
Operation Level
Adjustment Level
Manual Control Level
Initial Setting Level
Advanced Function
Setting Level
Of these levels, the initial setting level, communications setting level,
advanced function setting level, and calibration level can be used only
when control is stopped. Control outputs are stopped when any of
these four levels is selected.
• To switch to the protect level from either the operation level or the adjust-
ment level, simultaneously hold down the O and M keys for at least 3
seconds. (See note.) This level is for preventing unwanted or accidental
modification of parameters. Protected levels will not be displayed, and so
the parameters in that level cannot be modified.
Note The key pressing time can be changed in "move to protect level
move" parameter (advanced function level).
• The operation level is displayed when the power is turned ON. You can
move to the protect level, initial setting level, or adjustment level from this
level.
• Normally, select this level during operation. While operation is in progress,
items such as the PV and manipulated variable (MV) can be monitored,
and the set points, alarm values, and alarm upper and lower limits can be
monitored and changed.
• To move to the adjustment level, press the O key once (for less than 1 s).
• This level is for entering set values and offset values for control. In addi-
tion to AT (auto-tuning), communications write enable/disable switching,
hysteresis settings, multi-SP settings, and input offset parameters, it
includes HBA, HS alarm, and PID constants. From the adjustment level, it
is possible to move to the top parameter of the initial setting level, protect
level, or operation level.
• When the O key is pressed for at least 3 seconds from the operation
level's auto/manual switching display, the manual control level will be dis-
played. (The MANU indicator will light.)
• This is the level for changing the MV in manual mode.
• To return to the operation level, press the O key for at least one second.
• To move to the initial setting level from the operation level or the adjust-
ment level, press the O key for at least 3 seconds. The PV display
flashes after one second. This level is for specifying the input type and
selecting the control method, control period, setting direct/reverse action,
and setting the alarm types. You can move to the advanced function set-
ting level or communications setting level from this level. To return to the
operation level, press the O key for at least one second. To move to the
communications setting level, press the O key for less than one second.
(When moving from the initial setting level to the operation level, all the
indicators will light.)
Note Pressing the O key for at least 3 seconds in the operation level's
auto/manual switching display will move to the manual control level,
and not the initial setting level.
• To move to the advanced function setting level, set the "initial setting/com-
munications protect" parameter in the protect level to 0 and then, in the
initial setting level, input the password ( 169).
• From the advanced function setting level, it is possible to move to the cali-
bration level or to the initial setting level.
Section 1-3
11