• If using a cable which has been used before, a short piece must be peeled off when refitting it so that
the cable entry seal sleeve does not close around the cable at the same point again. If the outer sheath
of the cable is damaged, then replace the cable. Contact an ITT service shop.
• The voltage drop in long cables must be taken into account. The drive unit’s rated voltage is the
voltage measured at the cable connection point in the pump.
• The screened cable must be used according to the European CE requirements if a Variable Frequency
Drive (VFD) is used. For more information, contact your ITT representative (VFD-supplier).
Earthing (Grounding)
Electrical Hazard:
• You must earth (ground) all electrical equipment. This applies to the pump equipment, the driver, and
any monitoring equipment. Test the earth (ground) lead to verify that it is connected correctly.
• If the motor cable is jerked loose by mistake, the earth (ground) conductor should be the last
conductor to come loose from its terminal. Make sure that the earth (ground) conductor is longer
than the phase conductors. This applies to both ends of the motor cable.
• Risk of electrical shock or burn. You must connect an additional earth- (ground-) fault protection
device to the earthed (grounded) connectors if persons are likely to come into physical contact with
the pump or pumped liquids.
Connect the cables
1. Connect the monitoring equipment.
2. Connect the cable to the terminal board:
• If you have the MAS system, connect the cable to its terminal board according to the illustration
and table in MAS sensor connections (page 53).
NOTICE:
As the cable ends are sealed to eliminate moisture entrainment during transport and storage, no
wire markings for the sensors at the outlet end of the cable are made at the factory. Markings must
therefore be carried out during installation of the pump.
At the first installation, the MAS base unit and the pump memory should be synchronized. To
synchronize the units do the following:
1. Check that the communication between the pump and the MAS base unit is activated.
2. Upload the factory settings of sensors and associated parameters by choosing the command
"copy all from pump memory to MAS". For more information about the MAS installation,
see the Installation and User Manual for the MAS-711 monitoring equipment.
3. Connect the power cable:
a) Check the data plate to determine which connection, Y or D, is valid for the voltage supply.
b) Arrange the connection on the terminal board in accordance with Y or D.
c) Connect the power cable leads to the terminal board connection U1, U2, V1, V2, W1, W2, and
earth (ground) according to the cable chart.
See Cable charts (page 58).
4. Install the entrance flange:
a) Mount the entrance-flange parts according to the illustration for the correct drive unit.
Installation
50 C3300/6x5, C/R3231, C3240, C3306, C3312, C3351, C3356, C3400, C3501, C3531, C3602, C3800 Installation,
Operation and Maintenance Manual
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