Refitting the relay module cover
Ensure the sealing strip is undamaged and positioned within
its channel on the side of the drive housing. Hold the module
cover in place, taking care not to disturb the sealing strip.
Starting with the top left screw, tighten the four retaining
screws to 2.5Nm.
Ensure that the relay module cover is correctly secured at all times by
all four screws. Failure to do so may compromise the IP66 (NEMA 4X)
protection.
11.2
Wiring up the terminal connectors
It is the user’s responsibility to ensure the pump’s safe and reliable operation under
remote and automatic control.
Cable entry to the module is via two watertight cable glands on the module cover. These
may be fitted in place of the sealing plugs which are fitted to the side of the module cover
when the pump is shipped.
The number of glands needed depends on the number of connection cables required and
the convenience of the installer. As standard, two ½” cable glands are provided with the
pump.
Recommended control cable conductors for the terminal blocks: metric = 0.14sq mm -
2.5sq mm solid and 0.14sq mm - 1.5sq mm stranded. USA = 26AWG - 14AWG solid and
26AWG - 16AWG stranded. Cable: circular. Max/min outside diameter to ensure a seal when
passed through the standard gland: 9.5mm-12mm.
The cable section must be circular to
ensure a seal.
For EMC protection, shielded control cable should be used. The shielding should be
terminated to either of the provided spade connections.
Cables should have a minimum temperature rating of 85°C.
Note:
For 24V modules, screened, circular control cable up to 12 core must be used. For
110V modules, screened, circular control cable up to 25 core must be used. The cable
screen must be earthed at both ends of the cable.
Suitable cables for general-purpose use: 300V with extra premium grade PVC jacket with
good flame and moisture resistance.
Suitable cables for industrial use: 300V extra- rugged polyurethane grade jacket with
resistance to oils, fuels, solvents and water.
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