CALPEDA MXV-E 40 - 804 [6/16] Introduction
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CALPEDA MXV-E 40 - 804 [6/16] Introduction

CALPEDA MXV-E 25 - 207 [6/16] Introduction
1. Introduction
We strongly suggest the operator to carefully read and follow
the information contained in Danfoss Design Guide, in Danfoss
Quick Set-up, in MXV operating instructions and in these
instructions.
Symbols used:
This symbol indicates high voltage hazard. It calls
attention to components or procedures that could
represent a potential danger to the health and welfare
of the operator.
This symbol is used to call the operator’s attention to
situations of potential danger for people or for
operations that could cause damage to the product.
2. Special warnings regarding the
inverter
We strongly suggest the operator to carefully read and
follow the information contained in Danfoss Design
Guide, in Danfoss Quick Set-up, in MXV operating
instructions and in this booklet too.
This one contains specific instructions pertaining to the
application inverter-electropump in addition to the general
information given in the above-mentioned manuals.
The INVERTER should NEVER be opened or
tampered with and guards that come with it should
never be removed.
The inverter must be installed, adjusted and maintained
by qualified personnel who understand the risks intrinsic
to it.
The inverter must be fitted with voltage surge and
overload protection devices, in accordance with the
prevailing safety standards.
ELECTRICAL SHOCK HAZARD! Disconnect the
mains supply before accessing the inverter.
The residual voltage inside the inverter, remains at a
dangerous level even after disconnection.
Wait at least 4 minutes before accessing any electrical parts.
If a differential protection is necessary, install a type A
differential switch, protected against untimely
activation and with threshold of intervention of 300 mA.
The connections of the alarms can distribute power even
when the inverter is turned off. Ensure that there is no
residual voltage on the terminals of the alarms.
All the power terminals and other terminals must be
inaccessible after installation is completed.
The maximum output frequency must be suitable for the
type of pump to control.
Operating at a frequency higher than the allowable
frequency can cause higher current absorption and damage to
the apparatus.
FC motors are designed for application on pumps that
normally pump water and therefore at a density of
1kg/dm
3
and a maximum kinematic viscosity of 20 mm
2
/s.
Liquids that have a greater density or viscosity cause a greater
absorption of power that is incompatible with the correct
functioning of the inverter.
3. Pressure transducer
The pressure transducer is an analog instrument with a 4-20 mA
output signal that makes it possible to continuously read the
pressure in a system.
Features:
Standards: EN 50081-1, EN 50082-2.
Voltage: 8-28 V
Pressure range: 0-6 bar;
0-10 bar;
0-16 bar;
0-25 bar
Output: 4-20 mA
Working temperature: da 0 a +50 °C
Protection: IP 65
Hydraulic connection: G 1/4 maschio
Weigth: ~ 60 g
3.1. Connection to the frequency
converter
Remove the inverter box cover, which is held by 4 screws, to
obtain access to the terminals. Connect the pressure transducer
to the terminal blocks X101 as indicated in the drawing below.
Use a screened small cable 2 x 0, 5 mm
2
.
Terminals 3 and 6 can receive a remote input (ex. from a float),
otherwise the bridge between them must be left.
At the end the cover and the cable entries must be fitted.
See also paragraphs 2 and 4 in the Quick Set-up.
4. Diaphragm vessel
A diaphragm pressure vessel must always be
installed on the pump outlet.
For variable speed sets, vessels are used to make the pressure
more stable and to accumulate some water to avoid pumps
operation with small consumption or leakage in the system.
Generally are used diaphragm vessels with capacity of 10% of
maximum flow, with a minimum of 20 lt.
1 = 20-24 liter membrane
vessel.
Necessary to grant a good
pressure reading and a
proper pump operation.
2 = additional vessel.
It is required to store a
certain quantity of water to
feed little consumptions
without having the pump to
start (not required for
pumps with small motor
powers).
additional
vessel
4.93.369
20-24 liter
membrane vessel
variable
speed pump
ball valve
pressure
gauge
pressure
transducer
1
2
12345
X101
Pressure transducer
terminal board
67
1
4
2
3
89
4.93.368
6

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1 Introduction 3 Pressure transducer We strongly suggest the operator to carefully read and follow the information contained in Danfoss Design Guide in Danfoss Quick Set up in MXV operating instructions and in these instructions The pressure transducer is an analog instrument with a 4 20 mA output signal that makes it possible to continuously read the pressure in a system Symbols used This symbol indicates high voltage hazard It calls attention to components or procedures that could represent a potential danger to the health and welfare of the operator A A This symbol is used to call the operator s attention to situations of potential danger for people or for operations that could cause damage to the product Features Standards EN 50081 1 EN 50082 2 Voltage 8 28 V Pressure range 0 6 bar 0 10 bar 0 16 bar 0 25 bar Output 4 20 mA Working temperature da 0 a 50 C Protection IP 65 Hydraulic connection G 1 4 maschio Weigth 60 g 3 1 2 Special warnings regarding the inverter We strongly suggest the operator to carefully read and follow the information contained in Danfoss Design Guide in Danfoss Quick Set up in MXV operating instructions and in this booklet too This one contains specific instructions pertaining to the application inverter electropump in addition to the general information given in the above mentioned manuals A A A A A frequency Remove the inverter box cover which is held by 4 screws to obtain access to the terminals Connect the pressure transducer to the terminal blocks X101 as indicated in the drawing below Use a screened small cable 2 x 0 5 mm2 Terminals 3 and 6 can receive a remote input ex from a float otherwise the bridge between them must be left At the end the cover and the cable entries must be fitted See also paragraphs 2 and 4 in the Quick Set up X101 123456789 The inverter must be fitted with voltage surge and overload protection devices in accordance with the prevailing safety standards If a differential protection is necessary install a type A differential switch protected against untimely activation and with threshold of intervention of 300 mA The connections of the alarms can distribute power even when the inverter is turned off Ensure that there is no residual voltage on the terminals of the alarms All the power terminals and other terminals must be inaccessible after installation is completed FC motors are designed for application on pumps that normally pump water and therefore at a density of 1kg dm3 and a maximum kinematic viscosity of 20 mm2 s Liquids that have a greater density or viscosity cause a greater absorption of power that is incompatible with the correct functioning of the inverter 6 the The inverter must be installed adjusted and maintained by qualified personnel who understand the risks intrinsic to it The maximum output frequency must be suitable for the type of pump to control Operating at a frequency higher than the allowable frequency can cause higher current absorption and damage to the apparatus A to The INVERTER should NEVER be opened or tampered with and guards that come with it should never be removed ELECTRICAL SHOCK HAZARD Disconnect the mains supply before accessing the inverter The residual voltage inside the inverter remains at a dangerous level even after disconnection Wait at least 4 minutes before accessing any electrical parts A A A Connection converter Pressure transducer terminal board 4 Diaphragm vessel A A diaphragm pressure vessel must always be Installed on the pump outlet For variable speed sets vessels are used to make the pressure more stable and to accumulate some water to avoid pumps operation with small consumption or leakage in the system Generally are used diaphragm vessels with capacity of 10 of maximum flow with a minimum of 20 It 1 20 24 liter membrane vessel Necessary to grant a good pressure reading and a proper pump operation 2 additional vessel It is required to store a certain quantity of water to feed little consumptions without having the pump to start not required for pumps with small motor powers

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