User Manual for BPS-200
www.levitronix.com
PL-4012-00, Rev07, DCO# 20-144
29
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
. 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 “
Reset”
input the system gets back to the “
Off”
state.
Error Source
Errors
Effect on Designated
Digital Output of the PLC
Motor
No rotor
Error = relay open
Motor
Temperature over 100°C
Error = relay open
Motor
Temp. was higher than 90°C for more than 10 minutes.
Error = relay open
Motor
Temperature more than 90°C
Warning = relay open
Motor
No motor temperature signal
Warning = relay open
Motor
Motor power cable not connected with controller
Error = relay open
Motor
Motor sensor cable not connected with controller
Error = relay open
Controller
Over-current in the bearing coils
Error = relay open
Controller
Power channel interrupted
Error = relay open
Controller
Temperature over 80°C
Error = relay open
Controller
Temp. was higher than 70°C for more than 10 minutes.
Error = relay open
Controller
DC link (supply voltage) out of range (< 18 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.
Error = relay open
Controller
Temperature over 70°C
Warning = relay open
Controller
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.
Warning = relay open
Controller
Process warning
(high deviation between reference and actual value)
Warning = relay open
Controller
Trend warning (actual speed too high)
Warning = relay open
Table 13: Errors and warnings with indication on PLC interface for standard firmware
(For other configurations refer to alternate firmware documentation)
