OS.85 with SE-B*, Y/Δ start, stepless capacity control
The polarity of the orange connection cables on the SE-B* protective device must be determined with a measuring device.
(1): pulse time approx. 0.5 to max. 1 s, depending on system characteristics
Last revision of the diagram:
13.04.2022
Abbr. | Component |
|---|---|
B01 | Compressor protection device |
B02 | Discharge gas / oil temperature sensor |
B10 | High pressure switch |
B11 | Low pressure switch |
B24 | Oil thermostat |
B32 | Oil level switch at oil separator |
B42 | Oil flow switch |
B53 | ECO switch-on |
B60 | Overload protective device |
B62 | Rotation direction monitoring |
C03 | Electrolytic capacitor |
E01 | Oil heater |
F01 | Main fuse |
F02 | Compressor fuse |
F03 | Control circuit fuse |
F05 | Fuse of oil heater |
F08 | Fuse of rotation direction monitoring |
K01 | Superior controller |
K01T | Time relay for part winding start or for star-delta start |
K02T | Time relay for minimum shut-off period of compressor |
K03T | Time relay for oil supply fault |
K04 | Auxiliary relay for oil monitoring |
K04T | Time relay for oil level switch |
M01 | Compressor motor |
M06 | SV for economiser (ECO) |
M11 | SV for capacity regulator 1, CR1, CR+, CRII-2 or start unloading |
M12 | SV for capacity regulator 2, CR2, CR- or CRII-1 |
M17 | SV for standstill bypass |
M20 | SV for liquid line |
M40 | SV for oil injection |
P04 | Light: oil supply fault |
P05 | Light: compressor fault |
P07 | Light: wrong rotation direction |
P18 | Light: oil filter fault |
Q01 | Main switch |
Q02 | Contactor for first part winding (PW) or main contactor (Y/Δ) or compressor contactor (DOL) |
Q03 | Contactor for second part winding (PW) or delta contactor (Y/Δ) |
Q04 | Star contactor (Y/Δ) |
Q05 | Control transformer fuse |
R06 | Interference suppressor (if required, e. g. from Murr Elektronik) |
S01 | Control switch (on-off) |
S02 | Reset of compressor safety chain |
S18 | Reset of oil filter monitoring |
T01 | Control transformer (example for 230 V, required according to EN60204-1) |
Technical documents for further information: