17
Pump size
The Pump size is selected from a list of possible
sizes. The default size is 40.
To change the pump size, press and use
the or button to go to the desired setting.
The display starts flashing when the button
is pressed and it will display the pump size using:
PU XX (XX = actual pump size).
For possible pump sizes, see the table below.
Press to select the pump size. The display stops
flashing.
Possible pump sizes:
3 hp
5 hp
Press to go to the next menu: Max. speed.
Max. speed
The Max. speed menu makes it possible to reduce
the max. speed of the pump.
To change the max. speed, press and use
the or button to go to the desired setting.
The display starts flashing when the button
is pressed and it will display the max. speed using:
SP XXX (XXX = actual max. speed)
(360 = 3600 rpm and 150 = 1500 rpm).
Press to select the speed. The display stops
flashing.
Range of max. speed settings:
Press to go to the next menu: Reset type.
Reset type
The Reset type menu makes it possible to choose
between two types of reset: Automatic or manual.
If automatic reset is selected, the CU 321 automati-
cally resets in case of a fault.
If manual reset is selected, press to reset the
alarm.
To change the reset type, press and use
the or button to go to the desired setting.
The display starts flashing when the button
is pressed and it will display the reset type using:
Re X (X = Reset type).
Automatic resetting time: 10 seconds.
(Resetting time for dry run: 30 minutes.)
Press to select the reset type. The display stops
flashing.
Possible reset types:
Press to go to the next menu: Controller operat-
ing hours.
Controller operating hours
The Controller operating hours menu displays the
number of hours that the CU 321 has been con-
nected to the mains.
The display shows: hD XXX (XXX = the hours the
CU 321 has been connected to mains). The scale
is x100 hours.
The value is not reset at power-off.
Press to go to the next menu: Pump operating
hours.
Pump operating hours
The Pump operating hours menu displays the num-
ber of hours that the pump has been running.
The display shows: hP XXX (XXX = the operating
hours of the pump). The scale is x100 hours.
The value is not reset at power-off.
Press to go to the next menu: 1st alarm.
1st alarm
The 1st alarm menu displays the alarm code of
the latest alarm.
The display shows: AL1 XX (XX = alarm code).
For more information about alarm codes, see
section 5.4.
Press to go to the next menu: 2nd alarm.
2nd alarm
The 2nd alarm menu displays the alarm code of
the 2nd alarm.
The display shows: AL2 XX (XX = alarm code).
For more information about alarm codes, see
section 5.4.
Press to go to the next menu: 3rd alarm.
CU 321 data Pump
75 75S30-5
40 (default) 40S30-9
25 25S30-15
16 16S30-24
CU 321 data Pump
75 75S50-8
40 (default) 40S50-15
25 25S50-26
16 16S50-38
Max. 3600 rpm (default)
Min. 1500 rpm
Enter
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0 Manual
1 Automatic (default)
Off/
Reset
Enter
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