Multiplexable amplifier for photoelectric sensors
Telco Sensors
The PAB series consists of a 1-channel, a 2-channel and a-3 channel photoelectric amplifier, which are to be used in conjunction with the Telco remote transmitter LT and receiver LR from the series 100, 110 and 120. This amplifier series offers manual sensitivity adjustment via an integral potentiometer located on the front panel of the amplifier. Output can be selected from either a relay or transistor output, with an adjustable 0-10 sec on/off time delay. Light or dark function and long or short range are switch selectable.
The amplifiers from the PAB series can be connected together with up to 9 amplifiers from the PAB series via a bus rail connector positioned on the DIN rail, to form a modular master/slave system with 28 channels (PAB 10), 29 channels (PAB 20) or 30 channels (PAB 30). The bus connection enables communication between the amplifiers, which allows the channels of all the amplifiers to be multiplexed ensuring that optical cross talk between channels is prevented and allows a common output from the amplifier modules. Both the PAB x0 A and PAB x0 S can share power supply via the bus connection.
The amplifiers offer a test input, to be used for either disabling or enabling the transmitting power temporarily for test purposes. The amplifiers include an alarm output, which is used to indicate if the signal level is insufficient or if a sensor is faulty. The sensor LED drive powers the optional monitor
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