Series SIX Programmable Controllers

Transcription

1 Series SIX Programmable Controllers GEK-83525E October 1988 Analog Input Module General Description The Analog Input module is available in three versions: unipolar, bipolar and current. The unipolar module covers the voltage range, 0 to +10 V. The bipolar module covers the voltage range, - 10 to +1 0 V. The current module accepts currents in the range, 4 to 20mA;with a simple change of front panel connections it reads voltages in the range, +1 to +5 V. The Analog Input module features and benefits are summarized in Table 1. Each of these modules functions as an anaits eight input channels. The sampled value of log-to-digital (A/D) converter for signals on each of the input level is converted to a 12-bit binary number. This number is sent, along with binary information giving various operating conditions and the number of the channel being read, to the Input Status Table in the CPU. Each module contains an eight-to-one analog multiplexer, A/D circuitry, and an opto-isolator, along with an address decoder and data-bus drivers. There is also detection circuitry for open-wire, high-limit, and low-limit conditions, as well as an LED indicator that displays module status. Refer to Table 2 (next page) for Analog Input Module specifications. Table 1. Features and Benefits FEATURES Three Ranges Available: 0 to 10v -10 to +lo v 4 to 20 ma (+l to +5 V) Eight Input Channels per Module Conversion to 12 Data Bits Differential Inputs Optically-Coupled Data Path BENEFITS Useful in a Variety of Applications Efficient Use of I/O-Rack Space Provides Resolution of 1 Part in 4096 Good Noise Immunity (CMRR > 60 db to 1 khz) High Input Impedance (Typically 100 M LZ) Provides Electrical Isolation between User Field Devices and the Series Six Controller Status Information Sent to CPU Detects Overrange, Underrange, Open-Wire Conditions, and Module Status Sequential or Repetitive Channel Access Allows Normal Reading of All Channels, or High-Speed Sampling of Data from a Single Channel Process Signal Measurement Motor Speed Monitoring Energy Usage Monitoring APPLICATIONS Data Logging Alarm Level Sensing Position Sensing

2 2 Analog Input Module GEK-83525E Table 2. Specifications Dimensions: Circuit Board: Faceplate: Operating Temperature: Storage Temperature: Humidity: Accuracy: 8.15 x 11.0 x 1.20 (inches), 208 x 280 x 31 (mm) x (inches), 317 x 30 (mm) 0 to 60 C (at the outside of the rack) -20 to 40 C 5 % - 95% (non-condensing) Voltage Input % of full scale at 25 C typical % of full scale at 25 C maximum Current Input (4-20 ma) % of full scale at 25 C typical (see note below) % of full scale at 25 C maximum NOTE Any one input can be calibrated to within Temperature Coefflcieut: Linearity Gain offset Power Requirements: Input Overvoltage: Input Bias Currents: Input Impedance: Common Mode Voltage Operating Range: Common Mode Rejection (Noise Immunity): Cross Talk: Resolution: Input Filter: 0.025% of full scale at 25 C. Current Input (l0-50 ma) with external 100 ohm shunt voltage input function (1-5 V) being used. Therefore: % of full scale at 25 C typical PLUS tolerance of 100 ohm shunt, % of full scale at 25 C maximum PLUS tolerance of 100 ohm shunt. < 6ppm* of Full Scale per degree C < 18ppm of Full Scale per degree C < 1Oppm of Full Scale per degree C *ppm = parts per million Example: 10 ppm = 10 / 1 million =.00l% 5 V dc, 1.5 A, Supplied by I/O-rack power supply. The user must supply analog input voltage or current levels. Differential or common mode transients up to 30 V will not cause damage. < 200 pa at +25 degrees C maximum < 8 na at +7O degrees C maximum < 100 M Q Typical + 11 V maximum from inputs to SHD >60dB, DC to lkhz >74dB at lkhz 12 Binary Bits (1 part in 4096) Time Constant (nominal) is 1 milli-second

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12 12 Analog Input Module GEK-83525E Module Reconfiguration The Analog Input module can be reconfigured to function in any of three input ranges: 0 to +10V, -10 to +10V or 4 to 20 ma (1 to +5V). The user should note that ai1 eight input channels, on any given module, provide a common input range. INPUT RANGE ov to +10v (unipolar) -l0v to +lov (bipolar) 4 to 20 ma (+lv to 5V) JUMPER POSITIONS 1-2, 7-10, 8-9, 6-11, 13-14, 21-22, , 4-7, 8-9, 6-11, 13-14, 22-23, l-2, 3-4, 5-6, 7-8, 12-13, 21-22, Table 5. Ordering Information Module 0 to +10 v -10 to +lo v 4 to 20 ma (+l to +5 V) Circuit Board & Faceplate IC600BF841 IC600BF842 IC600BF843 Faceplate IC600FP841 IC600FP841 IC600FP843 Calibration Connector IC600MMO8 The UL symbol on the nameplate means the product is listed by Underwriters Laboratories Inc. (UL Standard No. 508, Industrial Control Equipment, subsection Electronic Power Conversion Equipment.) For further information, contact your local GE Fanuc sales office. NOTE The Analog Input module will function properly only when used with Series Six Plus CPUs and Models 60, 600 and 6000 CPUs with the following serial numbers: Model 60 CPU: Cl , and higher. Model 600 CPU: Cl , and higher. Model 6000 CPU: Cl , and higher. If your CPU has a serial number lower than that listed, contact the PLC Product Service Specialist at (804) for assistance. GE Fanuc Automation North America, Inc., Charlottesville, Virginia