Endress+Hauser promag 30, Operating Manual

Page: 34 / 72

➤
Status output
Works setting: Error messages
Switch No. 2: OFF
This switched output can optionally be configured for:
•
Signalling the direction of flow
•
Error messages:
– Fault (System error: coil current error, amplifier error DAT error, EEPROM error,
ROM error, RAM error)
– Alarm (Process error: measuring range exceeded, v
≥
12.5 m/s)
Supply failure
The status output acts as a normally closed contact, i.e. in normal operation fault, the
output is closed (transistor conducting, see Fig. 36).
Note!
The behaviour of the outputs in the event of a fault is described in section 6.1.
➤
System units
Works setting: SI units
Switch No. 3: OFF
SI units: volume in [dm
3
, m
3
]
US units: volume in [US gal]
1 US gallon = 3.7854 dm
3
(Litre)
Configuration of status
output
Status Behaviour of open
collector output
Signalling of system and
process errors
System OK closed
Fault signal/alarm open
Supply failure open
Flow direction
recognition
open
closed
“closed”: open collector
⇒
conducting
“open”: open collector
⇒
not conducting
Fig. 36
forward
reverse
ba
008y
33
5. Operation and Commissioning Promag 30
34 Hauser