ELECTRONIC BOARD CONNECTIONS
Connections key:
L - N = Power supply
230V AC - 50Hz
Screw clamps
Minimum cable section = 0.5mm
Maximum cable section = 2.0mm
= EARTH connection
Screw clamp
Minimum cable section = 0.5mm
Maximum cable section = 2.0mm
Y1 = VC/VF control
Screw clamps
Minimum cable section = 0.5mm
Maximum cable section = 1.3mm
Maximum cable length = 30m
Y2 = Accessory control
Screw clamps
Minimum cable section = 0.5mm
Maximum cable section = 1.3mm
Maximum cable length = 30m
N = Neutral
Faston-type connector
Minimum cable section = 0.5mm
FUSE = Protection fuse
Delayed 2A fuse
V3 - V2 - V1 = Motor control
Faston-type connector
Minimum cable section = 0.5mm
Maximum cable section = 2.0mm
SA = Air probe
Analogue input
Removable-type connector
Maximum cable length = 3m
20
AVMFE1LJ 1704 - 6795741_00
SW = Water probe
(2 pipes / 4 pipes on heating
exchanger)
2
Analogue input
Faston-type connector
2
Maximum cable length = 3m
SW1 = Water probe
(4 pipes on cooling exchanger)
2
Analogue input
2
Removable-type connector
Maximum cable length = 3m
SP = Presence sensor
2
Digital input
2
Screw clamps
Minimum cable section = 0.2mm
Maximum cable section = 1.0mm
Maximum cable length = 30m
2
CE = External contact
2
Digital input
Screw clamps
Minimum cable section = 0.2mm
Maximum cable section = 1.0mm
2
Maximum cable length = 100m
MS = Microswitch
Sliding contact
Maximum cable length = 3m
E5 = VMF-E5 power supply
2
Removable-type connector
2
Minimum cable section = 0.2mm
Maximum cable section = 1.0mm
Maximum cable length = 30m
RS485 / E5 = Supervision serial +
Power supply VMF-E5 (5 Poles)
Removable-type connector
Shielded cable size AWG22-5
(0,34 mm
- 5 poles + shield)
2
Maximum cable length for the
complete network = 30 m
RS485 = Supervision serial
Removable-type connector
Shielded cable size AWG22-3
(0,34 mm
2
- 3 poles + shield)
Maximum cable length for the
complete network = 1000m
TTL = Local serial
Removable-type connector
2
Shielded cable size AWG22-3
2
(0,34 mm
2
- 3 poles + shield)
Total maximum cable length = 30m
(see the diagram showing the connec-
tions between the units)
2
E2-E4 = Connection to the control
panel
2
Dedicated connector
Shielded Twisted Pair cable (Data
transmission cable), size AWG 22-24
(0.33 - 0.20 mm
CN 18 = Expansion board
Connector
2
CN 19 = Expansion board
2
Connector
CN 21 = Expansion board
Connector
CN 28 = Expansion board
Connector
Fuse
- 4 poles + shield
2