15
CU 300 installation configuration
Introduction
The configuration windows are updated with the actual values from the selected CU
300 the moment they are opened. Contrary to Status windows, open configuration
windows are not updated dynamically as this would prevent the user from keying in
new configuration values. If another unit is selected from the Operation window Net-
work List while a configuration window is open, this configuration window will be clo-
sed. Common to all three configuration windows are also the
[Program]
button in the
lower right-hand corner. Pressing it will start programming the selected CU 300 with
the values in the window. During this process a progress bar will be shown on the
screen, and if no warning shows up, the programming will be completed successfully.
The General
Configuration window
Open this window by selecting
Installation | General Configuration
from the Menu
Bar. Below is a table of all the configuration parameters which can be programmed
via this window. All these parameters can also be read or programmed via R100.
Configuration
parameter
Value range
Factory
setting
Description
Miscellaneous
Control mode
Open Loop,
Closed loop
Open loop
Open loop:
Setpoint is the pump speed.
Closed loop:
CU 300 closed loop control tries to
bring the feedback (sensor 1) in accordance with
the setpoint.
Buttons on CU 300
Active, Not active
Active
The on/off button on CU 300 can be active or not
active.
Dry-running stop
Enable, Disable
[0; 2461 W]
Enable
0 W
The dry-run protection uses a minimum power li-
mit to detect dry-runing.
Warning temperature
[0; 65/85°C]
-
If temperature in power electronics exceeds this
temperature the alarm relay will be activated.
Start delay
[0; 60 s]
0 s
Delay from SQE is powered on until it starts.
Maximum speed
[7000; 10700 rpm]
10700 rpm
Upper speed limit.
Number
[1; 64]
-
GENIbus No. as programmed with R100.
Standby
Auto restart
Enable, Disable
[0:00; 4:00] h:min
0:05 h:min
Automatic restart after an alarm stop. The alarm
standby time can be programmed.
Repeated standby
time doubling
Enable, Disable
Disable
Alarm standby time is doubled after every 10
alarm stops until 4:00 is reached. Will be reset
after 10 h without alarms.
Dewatering
Dewater
Enable, Disable
Disable
Enables or disables the CU 300 dewatering func-
tion which is based on the dry-running detection.
Max. Run Time
[1; 60 min]
60 min
Run time according to the Run/Stop diagram.
Max. Stop Time
[1; 60 min]
60 min
Current or voltage offset in the sensor signal (e.g.
4-20 mA).
