8
3. Functions
3.1 Control functions and settings
The display numbers mentioned in the following refer to the dis-
play overviews in section 13. Display overviews.
In the PFU 2000, two sets of control parameter settings are
stored:
•
PFU 2000 EPROM settings, which are default values.
•
PFU 2000 RAM settings, which are configuration values.
(These values can be changed.)
The PFU 2000 RAM settings are configured and displayed in the
PMU 2000.
Operation with PFU 2000 EPROM settings or PFU 2000 RAM
settings can be changed by means of the DIP switches in the
PFU 2000.
The PFU 2000 EPROM default settings and the PFU 2000 RAM
settings are listed in the “List of Control Parameters”. This list
should be updated after each change of setting.
PFU 2000 EPROM settings should not be used for continuous op-
eration. It is preferable to operate the booster set with PFU 2000
RAM settings.
3.1.1 Monitoring functions
The following functions are available:
•
Red indicator light (LED) for indication of fault condition.
•
Green indicator light (LED) for indication of operating condi-
tion.
•
PFU 2000 fault signal relay for indication of fault condition.
•
PFU 2000 operating signal relay for indication of operating
condition.
•
PMU 2000 fault signal relay for indication of fault condition
(if a PMU 2000 is installed).
•
PMU 2000 operating signal relay for indication of operating
condition (if a PMU 2000 is installed).
•
GRUNDFOS BUS communication.
See also section 9. Operating and fault indications.
Fig. 4
Fig. 5
PFU 2000 front cover
Reset
TM
00
27
21
13
02
PMU 2000 front cover
TM
00
70
23
13
02
3.1.2 PFU 2000 RAM settings
The PMU 2000 maintains the PFU 2000 RAM settings as long as
the units are connected via the GRUNDFOS BUS.
If a PMU 2000 is to be connected or replaced, please note the fol-
lowing:
To enter data from a PMU 2000 into the PFU 2000 RAM:
Fig. 6
1. Connect the GRUNDFOS BUS between the PMU 2000 and
the PFU 2000.
2. Switch on the electricity supply to the PMU 2000.
3. Switch on the electricity supply to the PFU 2000.
4. The settings from the PMU 2000 will be entered into the
PFU 2000 RAM. This operation will take about 1 minute.
During this period, the PMU 2000 will display “Master”.
To enter data from a PFU 2000 RAM into the PMU 2000:
Fig. 7
1. Connect the GRUNDFOS BUS between the PMU 2000 and
the PFU 2000.
2. Switch on the electricity supply to the PFU 2000.
3. Switch on the electricity supply to the PMU 2000.
4. The settings from the PFU 2000 RAM will be entered into the
PMU 2000. This operation will take about 1 minute. During this
period, the PMU 2000 will display “Slave”.
For further information, see section
3.1 Control functions and settings.
PMU 2000
PFU 2000
GRUNDFOS BUS
TM
00
8
462
28
96
PMU 2000
PFU 2000
GRUNDFOS BUS
TM
00
8
461
28
96
