12 Interface for NZM compact circuit-breakers12.2 Surface mounting230 SmartWire-DT modules IP20 09/17 MN05006001Z EN www.eaton.com12.2.3 Inputs• I0The HIN slot (middle and right auxiliary contact socket of the NZM) is fit-ted with an N/O contact and wired between terminals 24V and I0. It isresponsible for the “on” or “off” switch position.• I1The HIA slot (left auxiliary contact socket of the NZM) is fitted with an N/C contact and wired between terminals 24V and I1. It is responsible forthe trip indication.The inputs I0 and I1 are shown in the following table according to the PNOprofile for switchgear, and are mapped to the status data in byte 1:12.2.3.1 Energy signal inputs S0+ and S0-These external inputs are wired to an external energy measuring module,such as the NZM…XMC-S0. The measuring module supplies an S0 pulse fora specific amount of energy, which increments a retentive counter on theNZM-SWD-704. From this count, which has a size of 32 bits, the consumedenergy can be derived.Figure 98: Connection of the S0 inputIf the counter input is not required, terminals S0+ and S0- must be providedwith a wire bridge. This suppresses a starting pulse when the power supplyis switched on.Inputs DataCB status, byte 1, bit 2 + 3Init off On Trip00 01 10 11I0 – 0 1 0I1 – 1 1 0￫ The 1.5-kΩ-resistor is permanently integrated in the NZM-XSWD-704 device.S0+S0-1.5 K+24 VNZM-XSWD-704
