Power Supply; Series 500 I/O Base And Adapter Chassis - Siemens SIMATIC TI505 User Manual

Power Supply

The Series 500 and 505 Redundant I/O systems each use two power supply
modules, and two RBCs installed in the appropriated dual medial base. The
following power supplies are available:
All models provide regulated +5 V and –5 V power to the base. All power
supplies are normally active during dual media operation with each sharing
a portion of the load current. If one power supply fails, the other power
supply provides the full load current and the RBC provides a status
indication that one supply has failed.
Each power supply module provides output overvoltage, overcurrent and
undervoltage protection. The indicator labeled DC GOOD is on when the
module is producing the correct DC power. The indicator is off when
overvoltage, undervoltage, or overcurrent faults are detected.
NOTE: To allow replacement of a unit without taking down the entire base,
power to each power supply must come from separate sources, and you must
provide a means of disconnecting power from each power supply.
Series 500 I/O Base To install the dual RBCs and power supplies, use either the PPX:500–5864,
and Adapter 8-slot base or the PPX:500–5825 16-slot base with the PPX:500–9940
Chassis Redundant Controller Adapter Chassis. The adapter chassis attaches to the
right side of the I/O base and provides slots for the two power supplies and
the two RBCs.
In planning the installation of the I/O bases for the Redundant I/O system,
follow the guidelines in the manual that comes with the bases. To mount the
PPX:500–9940 Adapter Chassis, see Figure 1-5 for template dimensions,
and follow these steps.
1.
2.
3.
4.
5.
SIMATIC TI505 Redundant I/O System User Manual
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PPX:500–2151A and PPX:505–6660A accept 110/220 VAC inputs
PPX:500–2153 and PPX:505–6663 accept 24 VDC inputs
When preparing the mounting panel, position the base and adapter for
proper contact of the connectors.
Partially insert the two top screws in the panel.
Fit the screws into the holes in the adapter base (see Figure 1-5). Slide
the assembly down and to the left until the screws support the adapter
chassis and the base connectors are fully seated.
Attach the lower portion of the assembly to the panel with two #10
screws.
Tighten all screws.
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