P-HB-AOT-15010000 AOT-150 | ABB Analog Output Blocks

The AOT-150 block interfaces high level analog output signals. It supports 16 nonisolated output channels that operate in current mode (four to 20 milliamperes). Special output circuitry allows this block to support redundant I/O electronics. An AOT block can be ordered with either a screw terminal (S type) or cable/clamp terminal (C type) base.The AIN and AOT blocks use two types of power:■ 24 VDC block logic power.■ 24 VDC field power.Each I/O block develops its own operating voltages from redundant 24 VDC block logic power (BLP). The 24 VDC field power operates field devices and some I/O channel circuitry depending on the block type. Both internally powered The field power can be supplied in three different forms: internal field power (IFP), external local field power (LFP), and external remote field power (RFP). IFP power is distributed to the I/O blocks through the block mounting columns, LFP power is wired to each I/O block, and RFP power is wired to individual I/O channels.