State “Off”:
The pump system is switched off and the motor has no power. In this state, Levitronix
®
Service Software has
full control.
State “ON” (speed control mode):
The pump system is switched ON and the impeller is rotating with the referenced speed. The motor has
electrical power when in this state.
State “ON” (process control mode):
The pump system is switched ON and the impeller is rotating with the referenced flow/pressure. The motor
has electrical power when in this state.
On (Priming mode):
The pump system is switched ON and the impeller is rotating with the priming speed. The motor has electrical
power when in this state. This mode can only be accessed by activating priming feature within EEPROM-editor
in Levitronix
®
Service Software. Priming speed and timeout can also be configured within EEPROM-editor.
State “Error”:
If an error according to Table 8 occurs in the pump system, the system defaults to the Error state. The
according digital output on the PLC Interface Module is activated. The pump system is switched OFF. By a
pulse off 300-700 ms on the Enable/Reset input the system gets back to the Off state.
Supply voltage out of range (Power input < 39 or > 54 V DC)
If the voltage is out of range the system starts to reduce the speed and a warning is
generated. When reaching 0 rpm and the voltage is still out of range the system is disabled
and an error is generated. In case the voltage is again within the range during speed
reduction the system switches to normal operation and no Error is generated.
Table 8: Errors with indication on PLC interface for standard firmware
(For other configurations refer to alternate firmware documentation)
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