Commissioning
67
7.6.5
Set up 1 - Relays
To call the menu, select:
Ñ
> Specialist > Set up 1 > Relays
Function
Options
Info
Contact functions
Activation and subsequent entry
• NAMUR
– On
– Off
• Relay 1-5
– N/C
– Controller
– Limit
– CCW
– CCC
Factory setting
NAMUR: Off
Relay 1-5: N/C
You can specify the function of the five relays
here.
When you switch on NAMUR, relays 1 and 2
are assigned and are not available for another
function (see "Namur assignment" section).
Controller:
Relay contact for controller output
The controller relays are configured in the "
Ñ
> Set up 2 > Controller settings" menu.
Limit:
Limit switch function
The limit contacts are configured in the "
Ñ
>
Set up 2 > Limit switch" menu.
CCW:
Chemoclean water. Supply of water for
the Chemoclean function.
CCC:
Chemoclean cleaner. Supply of cleaner
for the Chemoclean function.
(Together, CCC and CCW form the
"Chemoclean" function; information on
Chemoclean is provided in the "Set up 2 -
Chemoclean" section.)
!
Note!
• Danger of data loss. If the controller is
already completely configured for outputting
via relays and you reduce the number of
relays assigned to the controller, the entire
controller configuration is reset to the default
values.
• If you change the relay assignment for the
controllers here, you have to reassign a relay
for all the functions selected in the relay
menu. Example: Relays 4 and 5 are assigned
for the controller and you change the
assignment for the controller to relays 5 and
6 (the number of relays remains at 2) (no loss
of data as long as the number of relays
assigned is not reduced!).
• You can only activate NAMUR if the
required relays 1 and 2 are free.
Namur contacts
Options
• Active open (NC contact)
• Active closed (NO contact)
Factory setting
Active closed (NO contact)
Only available if NAMUR is activated:
Select the assignment of the NAMUR contacts
as an NC contact (contact open if relay is
active) or an NO contact (contact closed if relay
is active).
If the NAMUR function is enabled, the Alarm,
Relay 1 and Relay 2 contacts are given the
following functions:
• "Failure" = Fault-signaling contact (terminals
41/42): Failure errors are active if the
measuring system no longer works properly
or if process parameters have reached a
critical value.
• "Maintenance needed" = Relay 1 (terminals
47/48): Warning messages are active if the
measuring system is still working properly
but should be serviced or a process
parameter has reached a value that requires
intervention on the part of the operator.
• "Function check" = Relay 2 (terminals
57/58): This contact is active during
calibration, maintenance, configuration and
during the automatic cleaning/calibration
cycle.
Hold
pH
7. 00
Param
[¯ ®]
[E]
Relay funct.
Next
Acc.Namur
off
Select
Relay 1
N/C
Relay 2
N/C
Relay 3
N/C
¯Relay 4
N/C
Содержание Topcal S CPC310
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