Woodward 8440-2251 easYgen-1000 Line

The power supplies can only be installed into slots PS1 (power supply #1) and PS2 (power supply #2). If

redundant power supplies are not needed, blanking plates must be installed in the slots not being used.

Branch circuit fuses, circuit breakers, and wiring must meet appropriate codes and authorities having

jurisdiction for the specific country (CE, UL, etc.). See Table 4-3 for maximum recommended fuse or

breaker ratings. Do not connect more than one main power supply to any one fuse or circuit breaker. Use

only the wire sizes specified in Table 4-3. which meet local code requirements.

Time delay fuses or circuit breakers must be used to prevent nuisance trips.

Power requirements depend on the number and type of modules supplied for each system. For a system

with a single I/O chassis, size the input power source according to the rating of the MicroNet Plus power

supply to which the source is connected. Do not size the supply mains for the sum of the MicroNet Plus

power supply ratings when redundant supplies are used. MicroNet Plus supplies are redundant when

installed in the same chassis. Redundant supplies share the load between them equally, but each must

provide for full load in the event that one of the units is disabled. Table 4-3 gives the maximum overload

protection for supply mains connected to any single or redundant pair of MicroNet Plus main power

supplies. It is not recommended that both MicroNet Plus main power supplies of a redundant pair be

connected to a single source, since failure of that source would disable the system.