Vemer MCR400 User manual

Vemer
Brand
Vemer
Model
MCR400
Type
User manual

Vemer MCR400 is a motor control relay designed to give balanced wear and tear of pumps, compressors, generators, etc., when two units, one in operation and one back-up, are installed. It can also be used for the alternate/simultaneous command of two motors, and for the cascade command of two motors.

The MCR400 has two relay outputs, each with a maximum switchable power of 2000 VA cos =1. It has a power supply of 400 V~, 50/60 Hz and an absorption of 3,5 VA (2,5 W).

The MCR400 has several operating modes:

Alternating command of two motors: In this mode, the MCR400 alternates the start-up of two motors each time the input contact piloted by an outside automatic device (such as a pressure switch) is closed.

Vemer MCR400 is a motor control relay designed to give balanced wear and tear of pumps, compressors, generators, etc., when two units, one in operation and one back-up, are installed. It can also be used for the alternate/simultaneous command of two motors, and for the cascade command of two motors.

The MCR400 has two relay outputs, each with a maximum switchable power of 2000 VA cos =1. It has a power supply of 400 V~, 50/60 Hz and an absorption of 3,5 VA (2,5 W).

The MCR400 has several operating modes:

Alternating command of two motors: In this mode, the MCR400 alternates the start-up of two motors each time the input contact piloted by an outside automatic device (such as a pressure switch) is closed.

V3IS00197-031
Mod. MCR
User Manual
MOTOR ALTERNATION CONTROL RELAY
Read all the instructions carefully
 ThemotorcontrolrelayMCR is an electronic command device in a standardised
4-module DIN container, to control the motor alternation.
SAFETY WARNINGS
During the installation and operation of the instrument, proceed in accordance with the
instructions below:
1) The instrument should be installed by a competent operator following the
installation diagrams carefully
2) The instrument should be installed in a panel from which no access can be gained to
the terminals after installation
3) Do not power or connect the instrument if any part of it is damaged
4) The electrical system of the building in which the instrument is to be installed
should have a switch and a protective device against over-currents
5) The instrument is designed for installations with over-voltage category III and
pollution level 2, in accordance with the EN 61010-1 standard.
Code Model Description
VP813000
MCR048
Motoralternationrelay24/48V
VP812200
MCR230
Motoralternationrelay115/230V
VP811400
MCR400
Motoralternationrelay400V
TECHNICAL SPECIFICATIONS
• Powersupply:24/48/115/230/400V~(-15%÷+10%),50/60Hz
• Absorption:3,5VA(2,5W)
• Terminal:6mm2block
•
Relay 1 output
: –relaywithexchangecontact8A/250V~
–maximumswitchablepower2000VAcos =1
•
Relay 2 output
: –relaywithexchangecontact8A/250V~
–maximumswitchablepower2000VAcos =1
• •Signalling: –GreenLED:poweron
  –RedLED:relay1intervention
  –RedLED:relay2intervention
• Operatingtemperature:–5°C÷+50°C
• Storagetemperature:–10°C÷+70°C
• Humidity:20%÷90%,non-condensing
• Insulation:powersupplyandloadcircuits,galvanicallyinsulatedatreinforcedinsulation
levelinaccordancewiththeEN61010-1standard
• Container:4-moduleDIN,colourRAL-7035grey
• Casingmaterial:self-extinguishinginclassV0,inaccordancewiththeUL-94standard
• Degreeofprotection:IP20/IP51whencorrectlyinstalledinanelectricalpanel
USE
• Thisdeviceisdesignedtogivethebalancedwearandtearofpumps,compressors,
generators,etc.,whentwounits,oneinoperationandoneback-up,areinstalled.
• Theoperatingprincipleisbasedonthealternationofthemotorstart-upcommands
eachtimetheinputcontactpilotedbyanoutsideautomaticdevice(suchasapressure
switch)isclosed.
• Aswellasthistypeofalternation,thistypeofrelaycanalsobeusedforthealternate/
simultaneouscommandoftwomotors,andforthecascadecommandoftwomotors.
OPERATING
ALTERNATING COMMAND OF TWO MOTORS
• Inthiscase,onlythemain
P1/G1
contactisused,pilotedbyanoutsideautomaticdevice
(suchasapressureswitch/oat).
• Eachinterventionofthe
P1/G1
contactcausesthealternatingstart-upofoneofthetwo
motors,exchangingtheoperatingfunction(seethe
“Operating Diagram 1”
).
ALTERNATING/SIMULTANEOUS COMMAND OF TWO MOTORS
• Inthiscasethemain
P1/G1
contactandthesecondary
P2/G2
contactsareused,
pilotedbytwooutsideautomaticdevices(suchastwopressureswitches)adjustedto
twodifferentinterventionthresholds.
• Eachinterventionofthe
P1/G1
contactcausesthealternatingtart-upofoneofthetwo
motors,exchangingtheoperatingfunction.
• Theinterventionofthe
P2/G2
contactcausesthestart-upofthesecondmotor,thus
settingupthe
emergency help
function(when,forexample,asinglepumpisunableto
satisfythepumpingrequirements.
See the
“Operating Diagram 2”
.
• Whenthepowersupplylineisinsertedwhenboththe
P1/G1
and
P2/G2
contacts are
closed,thestart-upofthesecondmotorisdelayedby2seconds,thushalvingthethrust
currentandtheconsequentoscillationofthecoilsupplyvoltage.
• Thesecondary
P2/G2
contactalsoguaranteestheemergencyhelpfunctionintheevent
offailureofthemain
P1/G1
contact.
• Thisthereforemakesitpossibletostart-uponeofthemotorsinstantaneously,andthe
back-upmotorafteradelayof2seconds.
CASCADE COMMAND
• When2ormorerelaysareused,thecascadeoperationof3ormoremotorsispossible,
withtheexchangeofthe
operating
and
emergency help
functionsofthevarious
motorsasrequired..
REFERENCE STANDARDS
ConformitytotheEUdirectives:
2006/95/EC(LowVoltage)
89/336/EECmodiedby92/31/EECand93/68/EEC(EMC)
isdeclaredwithreferencetothefollowingharmonisedstandards:
Safety:
EN61010-1
Electromagnetic compatibility:
EN61000-6-2,EN61000-6-4
Dimensions
Connection diagram
Operating diagram 1
ON ON
ON
Relay 1
Relay 2
MCR
65
87
45
60
72
Operating diagram 2
2s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
2s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Power supply
P1/G1
P2/G2
Relay 1
Relay 2
Power supply
P1/G1
Relay 1
Relay 2
MCR048
MCR230
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
8A / 250 V ca
24 V ca (1-2)
115 V ca (1-2)
MCR048
MCR230
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
48 V ca (1-3)
230 V ca (1-3)
400 V ca (1-3)
MCR400
8A / 250 V ca
P1 / G1 P2 / G2P1 / G1 P2 / G2
relay 2 relay 2
relay 1 relay 1
  • Page 1 1

Vemer MCR400 User manual

Vemer
Brand
Vemer
Model
MCR400
Type
User manual

Vemer MCR400 is a motor control relay designed to give balanced wear and tear of pumps, compressors, generators, etc., when two units, one in operation and one back-up, are installed. It can also be used for the alternate/simultaneous command of two motors, and for the cascade command of two motors.

The MCR400 has two relay outputs, each with a maximum switchable power of 2000 VA cos =1. It has a power supply of 400 V~, 50/60 Hz and an absorption of 3,5 VA (2,5 W).

The MCR400 has several operating modes:

Alternating command of two motors: In this mode, the MCR400 alternates the start-up of two motors each time the input contact piloted by an outside automatic device (such as a pressure switch) is closed.

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