
3. Arrange the connections on the terminal board in accordance with the required power
supply.
Links (jumper strips) are not used with the Y/D start.
4. Connect the motor conductors (U1, V1, W1, and earth (ground)) to the terminal board.
The earth (ground) conductor must be 50 mm ( 2.0 in.) longer than the phase
conductors in the junction box of the unit.
5. Make sure that the pump is correctly connected to earth (ground).
6. Make sure that any thermal contacts incorporated in the pump are properly connected
to the terminal board.
7. Install the entrance cover and the O-ring on the stator housing.
8. Fasten the screws on the entrance flange so that the cable insertion assembly bottoms
out.
Connect the motor cable to the starter and monitoring equipment
WARNING:
Do not install the starter equipment in an explosive zone or in the sump.
NOTICE:
• Either thermal contacts or thermistors are incorporated in the pump.
• Thermal contacts must never be exposed to voltages higher than 250 V, breaking
current maximum 4 A. It is recommended that they are connected to 24 V over
separate fuses to protect other automatic equipment.
1. If thermal contacts are included in the pump installation, connect the T1 and T2 control
conductors to the MiniCAS II monitoring equipment.
Do not connect the T1 and T2 leads to thermal contacts if the temperature of the
pumped liquid is above 40°C (104°F).
NOTICE:
Ex-approved products must always have the thermal contacts connected irrespective
of the ambient temperature.
2. If thermistors are included in the pump installation, and screened or auxiliary cable is
used, then connect T1(1) and T2(2) to thermistor relay or MAS 711, and T3(3) and T4
(4) to MiniCAS II or MAS 711.
3. Connect the mains leads (L1, L2, L3, and earth [ground]) to the starter equipment.
For the color codes of the leads, see
Cable charts
(page 24).
4. Check the functionality of the monitoring equipment:
a) Check that the signals and the tripping function work properly.
b) Check that the relays, lamps, fuses, and connections are intact.
Replace any defective equipment.
Installation
Flygt 3201 Installation, Operation, and Maintenance Manual
23
Summary of Contents for Flygt 3201
Page 1: ...Flygt 3201 Installation Operation and Maintenance Manual...
Page 2: ......
Page 47: ......