Hach PHOSPHAX sigma Manual Básico Del Usuario página 94

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Figure 6 Routing of optical-fiber cable SIGMATAX 2 and signal lines
Socket with
ground contact
Optical-fiber cable from
SIGMATAX 2
Current output 1
Current output 2
Limit-value contacts
Interface
Power plug
Terminal assignment — for current outputs and
limit-value contacts
N O T I C E
Only shielded lines may be connected!
English 94
Loosen
knurled screw
Front panel
Figure 7 View of the terminal board
Terminals for
shielding
Terminal board
Relay I = relay-min (lower limit-value contact)
Relay II = relay-max (upper limit-value contact)
(Figure shows relays in idle state.)
Current I = current output 1 (submenu (+SPECIAL P) or (+CURRENT 1))
Current II = current output 2 (submenu (+SPECIAL OP) or (+CURRENT 2))
In order to connect the transmission lines for current
output, limit-value contacts and bus interface, the following
work steps are required:
1.
Disconnect device from the mains supply.
2.
Open device door.
3.
Loosen the knurled screw at the top right and swivel the front panel
out forwards. The connections are located on the right on the
terminal board.
4.
Loosen the PG screw connection for the corresponding connection
cable and remove the blanking disc.
5.
Plug the cable through the screw connection into the device and
route forwards to the connection terminals.
6.
Plug cable ends into the corresponding connection terminals (wire
thickness maximum 1.5 mm
terminals is seen from
Figure
1
2
3
4
5
6
7
8
9
10 11 12 13 14
A
1
32 23 32 23
Relay 1
Relay 2
Current 1 Current2
Interface:
bus-capable
2
). The assignment of the connection
7the view of the terminal board.
B
A
B
1
2
2
RS 485

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