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13.2 Connection Examples
DEFAULT (FACTORY) CONFIGURATION
RELAY AND MODBUS CONNECTION
13.1 Connection Considerations
• All cables connected must be heat-resistant to at least +185 °F.
• All cables connected must be installed in accordance with The National Electric Code / NFPA 79 / EN 60204-1.
• All wires to the communications module must be connected to the terminals or cut. No loose wiring permitted.
13.2 Connection Examples
• If voltages over 24 VAC/DC are possible on NO, C, NC terminals:
• Wires should be routed so no wire crosses the center barrier.
• Relay cable (NO, C, NC) must be separated from all other wiring with reinforced insulation.
• Cable outer layer must not be stripped longer than 0.59 inches. See “Cabling preparation” below.
WARNING!
WARNING! Before performing any work on the module, make sure that the pump and module
electricity supply has been switched o and that it can- not be accidently switched on.
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