2-3
Chapter 2. NAMES & FUNCTIONS OF PARTS
• Segment No. display
In the basic display state, this display indicates the currently
selected segment No.
In the program setup state, this display indicates the segment No.
currently being set up.
During constant-value operation, this display goes out in the basic
display state.
In the parameter setup state, this display indicates the item No.
When an alarm occurs in the basic display state, the alarm code
No. is displayed.
• Mode indicator LEDs
RUN, HLD: Display the READY, RUN, HOLD, FAST and END
modes. (See following table.)
Mode
LED
READY
RUN
HOLD
FAST
END
RUN
Out
Lit
Out
Blinking
Out
HLD
Out
Out
Lit
Out
Blinking
MAN :
Lights in the MANUAL mode, and goes out in the
AUTO mode.
PRG :
Lights in the program setup state. Otherwise, this
LED is out.
• Upper display
In the basic display state, displays PV and other values.
In the parameter setup state, displays the item code.
• Lower display
In the basic display state, displays SP, time, output and other values.
In the parameter setup state, displays the item setting value.
• Low battery voltage LED
BAT: Blinks when the battery voltage is low. Otherwise, this LED
is out.
• Control/output state LED
AT: Blinks during auto-tuning, and lights during smart-tuning.
Otherwise, this LED is out.
OT1: When relay or voltage are assigned to output 1, lights when
output is ON and goes out when output is OFF. In the case of
2G output models, lights when the openside relay is ON and
goes out when the relay is OFF.
Lights when current output is assigned to output 1.
