5.2.2 Operating mode
Set one of the following operating modes:
• Normal (duty)
• Stop
• Min.
• Max.
The operating modes can be set without changing the setpoint
setting.
5.2.3 Fault indications
In E-pumps, faults may result in two types of indication: alarm or
warning.
An "alarm" fault will activate an alarm indication in R100 and cause
the pump to change operating mode, typically to stop. However, for
some faults resulting in alarm, the pump is set to continue operating
even if there is an alarm.
A "warning" fault will activate a warning indication in R100, but the
pump will not change operating or control mode.
The indication, Warning, only applies to three-phase
pumps.
Alarm
In case of alarm, the cause will appear in this display.
Possible causes:
• No alarm indication
• Too high motor temperature
• Undervoltage
• Mains voltage asymmetry (20-30 hp)
• Overvoltage
• Too many restarts (after faults)
• Overload
• Underload
• Sensor signal outside signal range
• Setpoint signal outside signal range
• External fault
• Duty/standby, Communication fault
• Dry running
• Other fault.
If the pump has been set up to manual restart, an alarm indication
can be reset in this display if the cause of the fault has disappeared.
Warning (only three-phase pumps)
In case of warning, the cause will appear in this display.
Possible causes:
• No warning indication.
• Sensor signal outside signal range.
• Relubricate motor bearings, see the section on the relubrication
of motor bearings.
• Replace motor bearings, see the section on the replacement of
motor bearings.
• Replace varistor, see the section on the replacement of varistor
(only 20-30 hp).
A warning indication will disappear automatically once the fault has
been remedied.
Related information
8.2 Relubrication of motor bearings
8.3 Replacement of motor bearings
8.4 Replacement of varistor (only 20-30 hp)
5.2.4
Fault log
For both fault types, alarm and warning, the R100 has a log
function.
Alarm log
In case of "alarm" faults, the last five alarm indications will appear in
the alarm log. "Alarm log 1" shows the latest fault, "Alarm log 2"
shows the latest fault but one, etc.
The example above gives this information:
• the alarm indication Undervoltage
• the fault code (73)
• the number of minutes the pump has been connected to the
power supply after the fault occurred, 8 min.
Warning log
In case of "warning" faults, the last five warning indications will
appear in the warning log. "Warning log 1" shows the latest fault,
"Warning log 2" shows the latest fault but one, etc.
The example above gives this information:
• the warning indication Relubricate motor bearings
• the fault code (240)
• the number of minutes the pump has been connected to the
power supply since the fault occurred, 30 min.
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