Leister LE MINI Operating Instructions Manual page 15

Circuit Diagram LE MINI
* Controller and SSR are optional
** Processing Temperature switch signal
PHASE
NEUTRAL
POWER
* Controller
Circuit Diagram LE Mini SENSOR
* Power supply is integrated according to
the controller used (model/manufacturer)
PHASE
NEUTRAL
OUT 1
POWER
IN
Controller
SUB 1 OUT 2
Alarm 1 Alarm 2
Connections Description
X1 Power in 100..240 VAC
Sensor out
4..20 mA, passiv
X2
4 mA = 0 °C
20 mA = 1023 °C
Sensor in
X3
thermal element
Power out
X4
Heating element
Alarm out
X5
Relay, 8 A / 250 VAC
**
OUT 1
SSR
POWER
Power
*
supply
12..24VDC
– +
Alarm out
Terminal 1
LOAD
Earth connection
(grey)
Temperature
switch (pink)
Working contact
* SSR
Note: In case of wrong wiring the
converter circuit board will be destroyed.
Converter
X2
X3
1 2 3
X4
X1
Terminal 2
NEUTRAL
Positive
Positive
(green)
Neutral
(blue)
Connection
LE MINI
Air pressure
Air pressure
(max 2 bar)
(max 2 bar)
1 (Load)
1 (Load)
2 (Neutral)
2 (Neutral)
3 (Temperature switch)
3 (Temp.-Schalter)
LE MINI SENSOR
Air pressure
Air pressure
(max 2 bar)
(max 2 bar)
X5
Terminal 3
LINE / MAINS
Negative
Negative
(white)
Load
(black)
Rest contact
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