Longo programmable controller LPC-2.P02
Table 2: K1
K1.1
GND
Ground
K1.2
9 .. 24 V DC
Power supply input
K1.3
Standard RS-485 A
Data receive/send line A
K1.4
Standard RS-485 B
Data receive/send line B
Table 3: LEDs & Buttons
Power LED (on the upper side of
the module)
Green LED: indicates
power supply status
On: power supply OK
Off: power supply missing or
power off
Internal fault LED (on the upper
side of the module)
Red LED: indicates
communication state
On: RS-485 communication fault
Off: RS-485 communication OK
Temperature set point
LED bar-graph
Green LEDs: indicates
actual temperature set
point between min.
and max. Temperature
set point range
On: represents actual set point
WARMER
Push button: set point
increase command
Set point increased by one step
when pressed
1
COOLER
Push button: set point
decrease command
Set point decreased by one step
when pressed
1
Table 4: S1
RS-485 ADDRESS
Switch 1
Switch 2
0
OFF
OFF
1
OFF
ON
2
ON
OFF
3
ON
ON
1
Each step means 1/12 of pre-setted temperature set point range.
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