Action Indicators
No. Name Description
O1 (Green) Lit when control output OUT1 is ON.
For direct current output type, flashes corresponding to the MV in 125 ms
cycles.
O2 (Yellow) Lit when control output OUT2 is ON. When (Heating/Cooling
control relay contact output) is selected in [Event output EV2 allocation]
EV1 (Red) Lit when Event output 1 is ON.
EV2 (Red) Lit when Event output 2 is ON.
Unlit if (Heating/Cooling control relay contact output) is selected in
[Event output EV2 allocation].
AT (Yellow) Flashes while AT, ‘AT on startup’ or Auto-reset is performing.
T/R (Yellow) Lit during Serial communication TX (transmitting) output.
(4)
STEP (Green) Lit when a step number (Program control) is indicated. (For KT8R, KT9R)
Key
No. Name Description
(5) MODE key Switches a setting mode, and registers the set data.
By pressing this key for 3 seconds during RUN mode, the unit enters
Monitor mode.
(6) OUT/OFF key By pressing the key for approx. 1 second, one of the following items
selected in [OUT/OFF key function] is activated.
OUT/OFF Key Function Description
Control output OFF function Turns control output ON or OFF.
Auto/Manual control Switches the Auto/Manual control.
Program control Starts or Stops the Program control.
(7) DOWN key Decreases the numeric value.
(8) UP key Increases the numeric value.
By pressing this key for 1 second during Program control, the performing
step is interrupted, proceeding to the beginning of the next step. (Advance
function)
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