Section 8 Setting data
8-6
Setting data
When changed with the UD keys, the MV is output once every 50
ms and updated in the system.
• When a potentiometer is connected to a position proportional type,
Display 1 shows the PV and Display 2 shows the valve opening.
When a potentiometer is not connected to a position proportional
type, Display 2 shows "-----".
• In manual mode, operation is performed manually and the "MANU"
indicator lights up.
• "Manual output method" is used to select the MV that is used when
entering manual mode. The MV prior to entering manual mode can
be held, or the manual MV default value can be used.
• Switching between manual and auto mode is accomplished with the
A key, or with "Auto/Manual" in Operation level. If either "PF1
setting" or "PF2 setting" is set to "A-M" (A key), "Auto/Manual" will
not appear in operation mode and only the A key is used for
switching.
• Switching between Auto and Manual with the A key
To switch modes, hold down the A key for at least one second in
Operation, Adjustment, Adjustment 2, Bank setting, PID setting,
Approximation setting, Monitor item, or Protect level.
• Switching between Auto and Manual with "Auto/Manual"
To switch modes, change the setting of "Auto/Manual" in
Operation level.
• During cascade control, if the primary loop is switched to manual
control when the secondary loop is in any of the following conditions,
the manual MV is disabled.
•The SP mode of the secondary loop is local (cascade open).
•The secondary loop is in manual mode.
•"Operation at error" is taking place in the secondary loop.
38.8
1
16.0
manu
Present value (PV)
Manipulated variable (MV)
"MANU" lights up
38.8
1
16.0
manu
38.8
1
-----
manu
Present value
(PV)
With potentiometer
Valve opening
"MANU" lights up
Present value
(PV)
Without potentiometer
Valve opening
"MANU" lights up
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