GB
3.5
Electrical connection
3.5.1
Multi-Controller (MC) 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.
Power cable
3x 380V - 420V 50 Hz
3x 440V - 480V 60 Hz
Item
Designation
E1
Condensate evaporation
LP1
Controller
M2
Condenser fan
MM2
Multimaster/ output
S1.2
Door close
Temperature
TS1
(internal)
X40
Ground terminal contact
Door contact+ terminal
X54
contact +Fault indication
Operating Manual DTS and DTI 6801 Multi-Controller (MC) 086100008c © Pfannenberg GmbH
S1.1
S1.2
Fault
Item
Designation
F1
High-pressure pressostat
LP2
Display control unit (MC)
(external)
M3
Evaporator
S1
Door contact
SK
Fault signal contact (1,2)
sensor
Temperature
TS2
(external)
X50
Mains terminal contact
Optional
Compressor:
Only clockwise rotating field
Item
F2-F5
M1
fan (internal)
MM1
S1.1
TK
sensor
X28
X51
R
085 000479 11189-858
085 000475 11189-858
Designation
Fuse
Compressor
Multimaster/ input
Door open
Door
contact/ signal (4,5)
Service interface (TTL)
Multimaster terminal
contact
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