Technical specifications for IC693ALG221
Accuracy 0.1 % full scale
Isolate the 1500 volt RMS field to the logical side
Part number IC693ALG221
Series Series 90-30
Brand GE Fanuc
Product life cycle status * Discontinued/obsolete
Product Description Analog current input
Product Description Analog current input
Number of channels 4
Range 4-20 mA, 0-20 mA
Update rate 2 ms for all channels
The IC693ALG221 is an analog input module that is part of the 90-30 series Programmable Logic Control (PLC) system. The module is a component module used as an analog input module. The module has four (4) input channels to receive 0-20 mA and 4-20 mA input signals from field equipment and instruments. The module is equipped with an internal analog-to-digital converter (ADC) that enables the PLC to process and further regulate the signal for use in user programs.
IC693ALG221 has a 12-bit input resolution of 4 μA (1 LSB = 4 μA) for each input range and 5 μA (1 LSB = 5 μA) for 4-20 mA input signals. It has an absolute accuracy of 0.1% full scale + 0.1% reading and a common-mode voltage of 200V. In addition, the module has a linearity of < 1 least significant bit and an input filter response of 325 Hz.
The default channel of IC693ALG221 is set to 4-20 mA. When a 4-20 mA signal is received, the module internally converts the signal range to 0-32000, a unitless measurement that represents the value of the input register. 0 corresponds to 4 mA, while 32000 corresponds to 20 mA. Values in between are also represented in registers, and the measurement point is determined by the resolution of the module. This internal conversion also works in the 0-20 mA input range. The selected input signal type is hardwired through specific terminals in the detachable terminals of the short circuit module. Range jumpers are provided, one for channels 1 and 2 and another for channels 3 and 4.
The IC693ALG221 4-channel analog current input module fits into almost any I/O rack in a PLC system. In order to provide the operating voltage to the module, the voltage from the power supply is sent through the regulator/inverter. Ensure that all field connections are connected using graded twisted-pair cables to minimize noise and capacitance load. The isolated +24 volt DC power supply provided by the PLC is the main power supply of the module. The IC693ALG221 4-channel analog current input module provides electrical and optical isolation between the field wiring and the backplane to eliminate externally generated noise. It is recommended to consider the total load requirements of the module as well as the load capacity of the power supply before configuring the module for the application.
