15. Output modules
69
In the menu
OUTPUT MODULES
the elements of
the output modules can be individually selected
and functions programmed as follows :
First select the port by pressing : <P> : ▲ or ▼
e.g. port 0 at socket A2 (port address 20):
Port: 20
The element concerned is recognized : Relay
Relay type NO (normally open) : Relay : NO (normally open)
Relay type NC (normally closed) : Relay : NC (normally closed)
Relay type (changeover): Relay : Changeover
The relay switching mode can be configured on the following variants;see 9.5 :
0: Alarm, if one channel of all is faulty 0: Summated alarm
2: Alarm of a programmable channel 2: Assigned internally
3: Alarm, if one limit value - max of all is overshot 3: Summated alarm - max
4: Alarm, if one limit value - min of all is undershot 4: Summated alarm - min
8: Relay driven via interface or keypad 8: Driven externally
Variant 2 ´Assigned internally´ also requires the assignment of relays to cer-
tain limit values; (see 13.12.2).
For the purposes of detecting power failure it is an advantage if relays are
driven on an inverted basis; without current an alarm status applies automati-
cally. The function variants are therefore also provided on an inverted basis.
Inverted relay control :
e.g. variant 2 inverted : -2: Assigned internally - Inverted
The activation mode and actual contact status resulting from relay type and driv-
ing mode are displayed in the next line.
Activation mode and relay contact status : Status : active open
Relay variant 8 ´Driven externally´ permits manual activation via the keypad or
via the interface; (see Manual 6.10.10).
Relay variant 8:
8: Driven externally
For manual activation of relays press : <ON> or <OFF>
Trigger inputs
For the purpose of controlling the measuring se-
quence 2 trigger inputs are provided at ports 8 and
9 (keypad or optocoupler). The trigger source
"key" and / or "optocoupler" can be configured ini-
tially by pressing
keys PROG , ▲ / ▼ and PROG or the trigger
function can, for safety purposes, be switched off
altogether by means of "OFF".
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