GB
3.5
Electrical connection
3.5.1
Standard controller (SC) electrical circuit diagram
DANGER
Life-threatening danger due to electric shock
Live units and exposed connection cables can generate an electric shock and cause severe accidents.
Work on electrical connections must be carried out exclusively by trained, qualified electricians.
Ensure that the unit is voltage-free before routing all electrical connections.
Note
The compressor can be destroyed if the phase sequence is incorrect
Always check the phase sequence before commissioning the three-phase unit.
Ensure that the phase sequence rotation is clockwise.
DIP-switch
Optional
Power cable
3x 380V - 420V 50 Hz
3x 440V - 480V 60 Hz
Item
Designation
B3
Termal motor protection compressor
F2-F5
Fuse
K20
Contactor compressor
M3
Evaporator
fan (internal)
TK
Door contact
(signal)
X28
Service interface (TTL)
Door contact + fault
X54
indication terminal contact
Operating Manual DTS and DTI 6401 / 6501 Standard Controller (SC) 086100007 © Pfannenberg GmbH
1,2 Fault indication
Door open
4,5 Door contact
Door close
Fault
2
0,14 mm
AWG 26
Item
E1
LP1
M1
S1
T1
X40
Compressor:
Only clockwise rotating field
Designation
Condensate evaporation
Controller
Compressor
Door contact
Transformer
Ground terminal contact
R
085 000474 11189-855
Item
Designation
High-pressure pressostat
F1
H1
LED / indicator unit
M2
Condenser fan
(external)
SK
Fault signal contact
Temperature
sensor (internal)
TS1
X50
Mains terminal contact
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