The Allen-Bradley 1764-24AWA is a Bulletin 1764 Base Unitthat,together with the Bulletin 1764 Processor, forms a complete MicroLogix 1500 Programmable Controller. It is a replaceable part that houses a communications port, a power supply, and embedded inputs and outputs. It is designed to be mounted on the Compact I/O Expansion unit to provide additional I/O. This maximizes options for embedded I/O while minimizing the costs of inventory stocking.
The 1764-24AWA Base has a 120-240V AC power supply with a power usage of 70 VA, a maximum load power of 16W, and a line power of 85-265V AC at 47-63 Hz. It has 12 relay outputs with 2 isolated relays per unit. The maximum continuous relay current must stay within the 8A per common and the total load controlled must be limited to 1440VA (break). It has twelve 120V AC inputs. The input circuits of inputs 0-11 do not support adjustable filter configuration. The maximum turn-off and turn-on times are 20 milliseconds. The 1764-24AWAallows advanced communications connectivity via its Channel 0 port.
The Bulletin 1764-24AWA has Class I Division 2 Hazardous Location, CE, C-Tick, c-UL, and UL product standards approval. It should be mounted horizontally with an allowance of 50 mm (2 in.) on all sides for adequate ventilation.