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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
•
Attention
: Install hoses of the cooling system in a way to avoid flow / dropping of
condensed water onto the pumping unit (especially cables and electronic parts).
Connection of the mains cable
☞
Electrical connection of the pump must be performed only by a suitable trained
and supervised personnel.
When using pumps with two motors (MV 10C EX VARIO) connect mains cable
parallel.
The motor cable for pumps in 230V version contains wires colour coded as follows:
green or green and yellow: earth
blue or white: neutral (N)
brown or black: live (L)
☞
Provide a fuse for the mains cable (L and N) according to the current draw of the
motor, see ”Technical data”. When using pumps with
two motors
provide a fuse
for each pump motor separately. Due to a high charge current for each motor a
protection is recommended, e. g., automatic fuse 16A type C.
☞
The
earth connection of the device
(potential equalization) has to be performed
only using the green or green/yellow earth connection wire. Connect the earth
connection wire of the device to the earth connection of the power supply line and
the potential equalization point of the environment of the device.
Attention:
Never use the antistatic connection at the housing of the device to
connect the device to ground, use only the green or green and yellow connection
wire of the motor. Use the antistatic connection at the housing only to perform an
antistatic connection of other non-electronic devices and components, e. g. inlet
and outlet vacuum hoses or something similar. Never lead away short-circuit cur-
rents using this connection. External electric devices have to be connected at the
potential equalization point of the environment separately and independent of this
device.
☞
In case of
power failure
unintentional venting of the system is possible. Adopt
suitable measures if this might lead to a dangerous situation.
Connection of the control cable
☞
Electrical connection
of the pump must be performed only by a suitable trained
and supervised personnel.
In case of pumps with two motors (MV 10C EX VARIO) connect the control ca-
bles in series, load per motor <
200 Ω.
Maximum voltage: 12 V.
Maximum current: 60 mA.
Comply with polarity!
The
control cable
of the pump contains four colored wires:
brown (+): 4 - 20 mA / speed control
blue (-): 4 - 20 mA / speed control
0 - 4 mA: Motor stops
4 - 20 mA: Linear increase of the motor speed from 30 - 1500 rpm
20 mA: Maximum motor speed of 1500 rpm
black: Status of control electronics
grey: Status of control electronics
contact closed: ok
contact open: fault
Max. 250V, 2A
The
motor and motor electronics
are protected by a t
hermal protection with
automatic reset
.
•
Attention
: The pump might restart on its own after sufficient cooling. Take appro
-
priate precautions, if an automatic restart of the pump may lead to a dangerous
situation.
