Xylem 7030.090, Инструкция по установке, эксплуатации и обслуживанию

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For Ex-proof applications, the stator winding temperature sensors are not connected to
terminals 51 and 63 on the PEM. They are connected to the T3 and T4 terminals on the
separate plinth.
NOTICE:
Leakage into the electrical parts can cause damaged equipment or a blown fuse. Keep the
end of the motor cable dry at all times.
For more information about the cable entry, see the Parts List.
1. Install the monitoring equipment. See the System Installation and Operation (SIO)
Manual for the MAS 801 monitoring equipment.
2. To connect the signal leads to the MAS BU, do the following:
a) Connect the two signal leads that are integrated in the SUBCAB
®
cable, T1 and T2, to
the MAS BU.
See the chapter “Installation” in the SIO Manual for the MAS 801 monitoring
equipment.
b) If it is not already connected, then connect the functional ground to the MAS BU.
3. Connect T3 and T4 from the thermal contacts or thermistors.
The stator winding temperature sensors are connected to the T3 and T4 terminals on the
separate plinth.
Option Description
Thermal contacts Connect the thermal contacts in the contactor coil circuit so that the circuit breaks
directly.
Use an auxiliary relay for the thermal contact status signals.
Thermistors Connect the leads to a SIL-approved thermistor relay.
For more information, see the SIO Manual for the MAS 801.
4. To gain access to the terminal board, remove the entrance cover and the O-ring from the
stator housing.
5. If they are not already connected, then connect the T1 and T2 leads and functional
ground which are integrated in the SUBCAB cable to the PEM. See the illustration and
table in
Terminals used in Ex applications
on page 44.
6. If they are not already connected, then connect the power leads as follows:
a) Examine the data plate to see which connections are required for the power supply.
b) Arrange the connections to the terminal board in accordance with the required power
supply.
c) Connect the mains leads: L1, L2, L3, and ground (earth).
See the applicable cable chart.
The ground (earth) lead must be longer than the phase leads in the junction box of
the pump.
The following table shows how much extra length is required for the ground (earth)
lead.
Pump Extra length of ground conductor, mm (in.)
7030, 7035, 7040 120 (4.8)
7. Make sure that the pump is correctly connected to ground (earth).
8. Install the entrance cover and the O-ring on the stator housing.
9. Fasten the screws on the entrance flange so that the cable insertion assembly bottoms
out.
4 Installation
P7030, P7035, P7040 Installation, Operation, and Maintenance Manual 43