Robur G 30, Installation, Use And Maintenance Manual

Page: 36 / 64

Electrical installer
36
4
How to make connections
All electrical connections must be made in the connection
terminal block located near the electrical panel:
1. Ensure the appliance is not live.
2. To access the electrical board of the unit, open the
thermoformed door on the right side of the unit (de-
tail 5 on dimensional diagrams, Paragraph 1.2 p. 8).
3. Insert cables through the appropriate cable gland (di-
mensional drawings, Paragraph 1.2 p. 8). PG9 ca-
ble glands are suitable for cables with diameters from
3,5 to 8 mm. PG11 cable glands are suitable for cables
with diameters from 5 to 10 mm. PG13.5 cable glands
are suitable for cables with diameters from 6 to 12 mm.
4. Remove the sheet metal cover of the electrical panel.
5. Identify the appropriate connection terminals.
6. Make the connections.
7. Replace the sheet metal cover of the electrical panel.
8. Close the thermoformed door.
4.3 ELECTRICAL POWER SUPPLY
Provide (by the installer) a protected single phase line
(230 V 1-N 50 Hz) with:
▶
H05VV-F 3x1,5 mm 2 type cable with a maximum exter-
nal diameter of 12 mm.
▶
Bipolar disconnector with minimum contact opening
of 3 mm.
How to connect the power supply
To connect the three-pole power supply cable:
1. Access the connection terminal block according to
Procedure 4.2
p. 35.
2. Connect the three wires to the terminal block as shown
in Figure 4.1
p. 36.
3. Provide the earth lead-in wire longer than live ones
(last to be torn in the event of accidental pulling).
Figure 4.1
Power supply connection
L Phase
N Neutral
P.E. Safety earthing
Components NOT
SUPPLIED:
GS Two-pole switch
L N
P.E. N L
6.3A
T 250V
F1
230V - 50 Hz
1
J63
GS
4.4 CONTROL SYSTEM
Separate control systems are provided, each with specific
features, components and diagrams:
1. OCDS015 Modbus remote control
2. Generic Modbus controller
3. OCDS012 1-key basic control
4. OCDS016 2-keys basic control
5. OTRG005 thermoregulator
6. OCDS008 digital chronothermostat (only in associa-
tion with OTRG005 thermoregulator)
7. OSWR000 Genius software for remote management
of gas unit heaters (only in association with OTRG005
thermoregulator)
8. External request
4.4.1
OCDS015 Modbus remote control
The OCDS015 Modbus remote control must be installed
on the wall in a suitable position, using expansion screws.
The remote control is connected to the terminal block lo-
cated in the electrical panel inside the appliance.
How to connect the remote control
1. Access the connection terminal block according to
Procedure 4.2 p. 35.
2. Use LAN Cat. 5e FTP cable 4x2xAWG 24/1.
3. Make electrical connections as described in Figure
4.2 p. 36.
4. For further information refer to the instruction sheet
supplied with the OCDS015 optional.
The total length of the connection cables between
all gas unit heaters and the OCDS015 Modbus re-
mote control must not exceed 1100 m.
Figure 4.2 Modbus connection
1 White/green
2 Green
3 White/blue +
blue
4 Shield
1
SHLD
GND
J34
RS485
A
B
J20
1
2
3
4
4.4.2 Generic Modbus controller
The connection of a generic Modbus controller to the gas
unit heater is identical to that provided for the OCDS015
Modbus remote control (Paragraph 4.4.1 p. 36).
Check with the Modbus controller manufacturer
the type of cable to be used, the cross-sections and
the maximum permissible cable lengths.
Depending on the registers managed on the Modbus
controller, the relevant functions will be available or not
(switching the gas unit heater on/off, choosing the oper-
ating mode, error reporting and reset, ...).
Any functions not supported by the Modbus controller
can be managed via external requests by making the rele-
vant connections (Paragraph 4.4.8 p. 40).