Hach sc1000 Manual Básico Del Usuario página 5

D A N G E R
Electrocution Hazard. Always remove power from the instrument
before making any electrical connections.
D A N G E R
Electrocution Hazard. High voltage wiring for the controller is conducted behind
the high voltage barrier in the controller enclosure. The barrier must remain in
place except when installing modules, or when a qualified installation technician is
wiring for power, relays or analog and network cards.
N O T I C E
Potential Instrument Damage. Delicate internal electronic components
can be damaged by static electricity, resulting in degraded
performance or eventual failure.
The Profibus network card supports RS485 communication. Terminal
block J1 provides the user connection to the Profibus network card. For
more wiring details, refer to Table 1
the Profibus network card.
Table 1 Profibus card terminal assignments
Terminal Designation
1 B2 Output (cable color red)
2 A2 Output (cable color green)
3 5V
4 0V
5 B1 Input (cable color red)
6 A1 Input (cable color green)
and to the following steps to install
Figure 2 Profibus card connections
1 Network termination activated,
last device on network
2 Network termination deactivated,
other devices on network after
this device.
3 Terminal Block – Refer to
Table 1 for terminal
assignments.
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