OPERATING LIMITS
Power supply voltage:
Frequency:
Ambient temperature:
Tightness, protection:
EMC (electromagnetic
compatibility):
MGP
1~24/230/400V
50 et 60 Hz
0° à + 60°C
IP 20
EN 50 081-1
et EN 50 082-2
DRIVING DEVICE
for twin pumps
or 2 single pumps
APPLICATIONS
Driving of two pumps via power contactors.
Management of motor faults through
thermal relay contacts and/or ipsothermal
probes.
Program adjustment by external clock.
For:
● twin pumps,
● twin circulators,
● twinned single pumps.
For any type of installation: new, old or for
modernization.
• MGP module:
driving of two LRL single pumps
• MGP module:
driving of a JRL twin pump
• MGP module:
a single model whatever the motor power
• Unpluggable terminal blocks:
easy electrical connections
1
N.T. N° 300-8/ENG. - Ed.4/05-05
MGP
BENEFITS
●
●
●
●
Multi-purpose use:
with glandless circulating pumps
and glanded circulating pumps,
for heating or air conditioning,
usable whatever the motor nominal
power.
Complete functions:
automatic management of twin units,
remote control and display
of operating and fault statuses.
Operating safety:
automatic start-up of the standby
pump in case of failure of the operating
pump.
module protection via a built-in fuse.
Easy installation:
Reduced overall dimensions for
installation inside an existing cabinet,
easy electrical connections thanks
to the unpluggable terminal blocks.
DESIGN
- Electronic box to be installed inside one
of the pumping station master cabinets.
- Mounting on 35-mm symmetrical rail
(EN 50.022).
- A single model whatever the motor power.
- Box made out of self-extinguishing
material.
- Protection IP 20.
- Electro-magnetic compatibility (EMC).
- Unpluggable terminal blocks for easy
electrical connections.
- Built-in protection fuse.
MAIN FUNCTIONS
A - OPERATING MODES
-O:
units stopped.
- P1 :
forced operation pump No. 1.
- P2 :
forced operation pump No. 2.
- P1/P2 : the pumps operate alternately
according to the logic state of
the external clock control.
- P1+P2 : the pumps operate in parallel,
with shutdown of one
of the pumps according
to the logic state
of the external clock control.
- Reset : manual reset of the system
after ipsothermic failure
of the motor.
- Automatic switchover from the operating
pump to the standby pump in case
of thermal relay fault, on the ipsotherm
or the CTP.
- Display of the operating and fault statuses
on the module front panel.
B - OTHER FUNCTIONS
- Monitoring of the contact logic state
on the thermal relay.
- Monitoring of the contact logic state
on the ipsotherms or CTP probes
(according to motors).
c) Display on cabinet front panel
or to GTC:
- of operating statuses,
- of fault statuses,
for each pump.
Other connections possible:
a) Remote-control start-stop
by external dry contact.
b) Remote display of faults and remote
alarm by double reversed contact.
• FAULT: normally-open contact (PTF),
• REMOTE ALARM: normally-closed
contact (PTO).
INDICATOR LIGHTS
P1
P2
Voltage present
Yellow
Running
Green
Fault
Red
Running
Green
Fault
Red
Display of
'MODE' selection
Yellow
0
P1
P2
P1/P2
MODE
P1 + P2
RESET
Thermal fault
Ipsothermal fault
2
Steady
red
Flashing
red
MGP
DESCRIPTION OF MGP MODULE
6
5
A
1~50/60Hz
1
0
4
2
3
4
24V 230 400V
B
5
P1
3
6
7
S1
8
2
9
10
RT1
11
P2
C
12
1
13
S2
14
15 16
RT2
0
P1
P2
P1
P2
P1/P2
MODE
P1 + P2
RESET
17
18
ON/OFF
19 20
D
C
21
P1
P2
ON FAULT ON FAULT
22
23
24
C
26
25
E
RD RT
27 28
F
FRONT PANEL
UNPLUGGABLE CONNECTION
TERMINAL BLOCKS
1– Rotary selector switch for operating
mode selection
2– LED indicator lights showing
the selected mode
3– Dual-colour LED indicator light showing
operation or fault (resp. green or red)
pump No. 2
4– Dual-colour LED indicator light showing
operation or fault (resp. green or red)
pump No. 1
5– LED indicator light showing voltage presence
6– Protection fuse.
A– Power supply terminal block
B– Pump No. 1 terminal block
C– Pump No. 2 terminal block
D– External control terminal block
E– Display terminal block
F – General fault display terminal block.
3
MGP
MGP MODULE: OPERATION DESCRIPTION
The MGP Module ensures the following functions:
- management of twin groups,
- management of information display,
- management of motor faults.
'P1+P2' : closed contact
open contact
both pumps operating in parallel
cyclic shutdown of a pump
The REMOTE CONTROL (terminal block (D) - terminals '19' and '20')
enables a remote shutdown of the pumps without changing
the selected operating mode nor the cycle programmed by the clock.
1 - OPERATING MODE CHOICE
Selection is performed by rotating the 'MODE' selector switch (1)
until obtaining the desired mode (2), in the following order:
3 - DISPLAYS - TERMINAL BLOCK (E)
Functions
”O”
”P1”
”P2”
”P1/P2”
”P1+P2”
”RESET”
Functions
They display on the front panel of the pumping station master cabinet, for example, the operating or fault status of each pump.
The displays enable to manage various information items such as
the operating time or the number of faults for each pump, etc.
'O' :
'P1' :
both pumps are stopped
pump No. 1 operates continuously
(pump No. 2 is not on standby)
'P2' :
pump No. 2 operates continuously
(pump No. 1 is not on standby)
'P1/P2' : the pumps operate alternately according to the logic
state of the external clock control, with switchover
upon a fault
'P1+P2' : both pumps operate in parallel, with a cyclic shutdown
of one of the pumps, according to the logic state
of the external clock control, with switchover upon a fault
'RESET' : manual system reset after ipsothermal fault.
The fault display is general, and does not dissociate a thermal fault
from an ipsothermal fault.
Each operating mode change stops the pumps for a few seconds.
The red 'RESET' LED indicator light:
2 - SWITCHOVER CLOCK/REMOTE CONTROL
- comes on steady upon a thermal fault.
It goes off after resetting the relay or the thermal circuit-breaker
associated with the pump.
By default, the module is delivered in configuration 'O'.
The status of the open/closed contact (terminal block (D) - terminals
'17' and '18') delivered by the external clock enables to manage the
pump operating time according to the selected mode.
The second pump is systematically started upon failure of the
operating pump.
Functions
'P1/P2' : contact closed
contact open
P1 only operating
P2 only operating
Upon stoppage of one of the pumps, the other will start after a time
delay of a few seconds.
4
4 - FAULT DISPLAY - TERMINAL BLOCK (F)
General fault display that changes status upon detection of thermal
or ipsothermal faults on one of the pumps.
Applications are numerous: alarm, indicator light, revolving light, etc.
5 - 'RESET' FUNCTION
Operation
- comes on flashing upon an ipsothermal fault.
Reset is only possible if the motor temperature has gone
back to normal.
To switch off the light and enable start-up: temporarily set the
'MODE' selector switch to 'RESET' (anti-clockwise rotation to the
extreme position) then set the switch back to the desired operating
mode.
MGP
CONNECTION WIRING DIAGRAM
Co
M
M
3 ~
RT
Supply
b
95 96 97 98
Control
Circuit
Power supply 1~ 50-60 Hz
(acc. to available voltage)
or or
1~50/60Hz
1
0
2
3
4
24V 230 400V
5
P1
6
7
S1
8
9
10
RT1
11
P2
12
13
S2
14
15 16
RT2
0
P1
P2
P1
P2
P1/P2
MODE
P1 + P2
RESET
17
18
ON/OFF
19 20
Programmer or
external clock
Remote
control
C
21
P1
P2
ON FAULT ON FAULT
22
23
24
25
C
26
P2 fault
P2 running
P1 fault
P1 running
Common
RD RT
27 28
Remote alarm display
Fault display
Common
ELECTRICAL CONNECTIONS
1 - TERMINAL BLOCK POWER SUPPLY
Connect the power supply between terminal '1' (common) (terminal
block (A)) and that corresponding to the available voltage 24, 230
or 400 V, resp. terminals “2”, “3” or “4”.
2 - PUMP CONTROL AND PROTECTIONS
Captions : Co = contactor
b = coil associated to the contactor
RT = thermal relay
M = motor
Supply = power supply
”P1” Control terminal block (B): output ports '5' and '6'.
De-energized contact: max. voltage = 400V
max. current = 1A
Insert contacts '5' and '6' into the power supply circuit of coil (b)
of contactor associated with the pump control.
”P1” protections terminal block (B): input ports '7/9' and '9/10'
to be activated by a de-energized external organ.
- 'S1' ipsothermal protection: connect the pump probe, if any, (bimetal
opening upon a fault or CTP) to terminals '7' and '8' in lieu of the shunt
provided.
- 'RT1' thermal protection: connect the auxiliary contact opening upon
a fault (normally closed) of the thermal relay associated with the pump
to terminals '9' and '10' in lieu of the shunt provided.
”P2” control terminal block (C): output ports '11' and '12'.
De-energized contact: max. voltage = 400V
max. current = 1A
Insert contacts '11' and '12' into the power supply circuit of coil (b)
of contactor associated with the pump control.
”P2” protections terminal block (C): input ports '13/14' and '5/16'
to be activated by a de-energized external organ.
- 'S2' ipsothermal protection: connect the pump probe, if any,
(bimetal opening upon a fault or CTP) to terminals '13' and '14'
in lieu of the shunt provided.
- 'RT2' thermal protection: connect the auxiliary contact opening upon
a fault (normally closed) of the thermal relay associated with the pump
to terminals '15' and '16' in lieu of the shunt provided.
3 - EXTERNAL CONTROLS
Terminal block (D). Input ports '17/18' and '19/20' to be activated
by a de-energized external organ.
- Connect the contact of a clock to terminals '17' and '18' in lieu
of the shunt provided (positions P1/P2 and P1+P2 only).
- Connect a remote control to terminals '19' and '20' in lieu
of the shunt provided.
4 - DISPLAYS
Terminal block (E). Output ports '21' (common) and '22/23/24/25'.
De-energized contact (dry): max. voltage = 250V
max. current = 2A
Terminals '21' and '22': P1 running - Terminals '21' and '23': P1 fault
Terminals '21' and '24': P2 running - Terminals '21' and '25': P2 fault
5 - FAULT DISPLAYS
Output ports '26' (common) and '27/28'.
De-energized contact (dry): max. voltage = 250V
max. current = 2A
Terminals '26' and '27': normally-open contact (between C and RD)
Terminals '26' and '28': normally-closed contact (between C and RT).
N.B. : to identify the terminal blocks, see figure under 'DESIGN AND DESCRIPTION OF THE MGP MODULE'.
5
MGP
DIMENSIONS OF BOXES
1~50/60Hz
1
0
2
3
4
24V 230 400V
5
P1
FEATURES
6
7
S1
8
9
10
RT1
11
P2
12
13
S2
14
15 16
RT2
Output ports
0
P1
P2
a) Electrical
Single-phase power supply 24, 230 or 400V
(±10 %).
50-60 Hz
: Max. U = 400V
: Max. I = 1A
P1
P2
MODE
P1/P2
P1 + P2
Displays
RESET
: Max. U = 250V
: Max. I = 2A
17
18
ON/OFF
19 20
C
21
P1
P2
ON FAULT ON FAULT
22
23
24
C
26
25
RD RT
27 28
Connection be unpluggable terminal blocks.
Input protection by built-in fuse.
b) Mounting
In a cabinet, on a 35-mm symmetrical rail
(EN 50.022).
160
c) Packaging
Individual packing.
45
d) Maintenance
The MGP module does not require
any particular servicing.
Carry out standard replacement
of the defective device.
ORDER REFERENCE NUMBER: 4042680
45
ATTACHMENT: 35-mm symmetrical rails
CABLE SECTION: 1 to 1,5 mm2
TIGHTNESS/PROTECTION: IP20
WEIGHT: 490g
58
30
67
1~50/60Hz
1
0
2
3
4
24V 230 400V
5
P1
6
7
S1
8
9
10
RT1
11
P2
12
13
S2
14
15 16
RT2
Provide for spaces
for easier connection.
0
P1
P2
P1
P2
P1/P2
MODE
P1 + P2
RESET
18
ON/OFF
19 20
C
21
P1
P2
ON FAULT ON FAULT
22
23
24
25
C
26
RD RT
27 28
30
17
6
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Tél. : + 33 (0) 820 873 624 - Fax. : + 33 (0) 1 30 09 82 82 - www.salmson.com