User Manual for PuraLev
®
600MU
www.levitronix.com
PL-4033-00, Rev09, DCO# 20-144
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 speed is controlled in order to get 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. In this state, the Manual User Interface LUI is disabled. This mode can only be
accessed by activating priming feature within EEPROM-editor in Levitronix
®
Service Software. Priming speed
and Timeout-time can also be configured within EEPROM-editor.
State “Error”:
If an error according to Table 14. occurs in the pump system, the system defaults to the Error state. The
designated digital output on the PLC Interface is activated. The pump system is switched OFF. By activating
the “ input the system gets back to the “ state.
Effect on Designated
Digital Output of the PLC
Temp. was higher than 90°C for more than 10 minutes.
Temperature more than 90°C
No motor temperature signal
Motor power cable not connected with controller
Motor sensor cable not connected with controller
Power channel interrupted
Temp. was higher than 70°C for more than 10 minutes.
DC link (supply voltage) out of range (< 40 or > 56 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.
Dry Running Detection
-> Pump keeps running on reduced speed (5000 rpm)
-> The system accelerates to the set speed value when the pump is
refilled with liquid
-> Note that the speed is only reduced during dry running if the pump
speed was ≥ 6000 rpm
Trend warning (actual speed too high)
Table 14: Errors and warnings with indication on PLC interface for standard firmware
(For other configurations refer to alternate firmware documentation.)
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