21
W28, E28 Steam cylinder used
Function:
monitoring of the steam cylinder on lime deposits at the electrodes.
Procedure:
if a filling cycle ends due to a contact with the max. level sen-
sor a counter is increased by 1. If the filling cycle ends with 110 % current
the counter is decreased by 1 (not < 0). Sensor contacts beyond the filling
cycles are not counted. If the sensor counter reaches a value of 2400 (4800
with conductivity: <125uS), the warning W28 is triggered. Further 72 hours
of operation are possible after the warning message before the error E28
is triggered.
Behaviour on activation:
Service
Error
Display
W28A(B): Cyl. Maintenance
E28A(B): Cyl. Maintenance
LED display:
Yellow lights
Yellow & Red light
Fault-Remote:
Service Relay
Service & Error Relay
Error-History:
-
E28A(B)
System:
72 h Timer is started
Unit blocked
Time delay:
2400 (4800) Sensor contacts
72 hours warning time
Reset:
User -> Maintenance -> Cyl. Reset
User -> Maintenance -> Cyl. Reset
W29, E29 Max. operating hours of steam cylinder reached
Function:
monitoring the steam cylinder on max. operation hours.
Procedure:
if the operating hours of the steam cylinder has reached the set
maximum value the Warning W29 is triggered. Further 72 hours of operation
are possible after the warning message before the error E29 is triggered.
Behaviour on activation:
Service
Error
Display
W29A(B): Cyl. Maintenance
E29A(B): Cyl. Maintenance
LED display:
Yellow lights
Yellow & Red light
Fault-Remote:
Service Relay
Service & Error Relay
Error-History:
-
E29A(B)
System:
72 h Timer is started
Unit blocked
Time delay:
2500/5000 operating hours
72 hours warning time
Reset:
User -> Maintenance -> Cyl. Reset
User -> Maintenance -> Cyl. Reset
