Yokogawa Small Electric Power Input Module AAM21 (mV, Thermocouple, and RTD Input Module)
GENERAL
I/O Modules and I/O Module Nests (for RIO) for CENTUM CS 3000 and CENTUM CS 1000 systems.
STANDARD SPECIFICATIONS
I/O Module Nest
Yokogawa Small Electric Power Input Module AAM21
Power Supply:
5.0 V DC supplied from Model AND50, ANS50, AND20, ANS20 Node Interface Unit or Model PFCS/
PFCD Field Control Station
Installation: Node Interface Unit, I/O Expansion Rack,
or Model PFCS/PFCD Field Control Station.
External
Dimensions: 125mm (W) x 130mm (D) x 248mm (H);
AMN51: 137.5mm (W) x 225mm (D) x 254 (H);
AMN52: 233.3mm (W) x 225mm (D) x 254mm (H)
Weight: Max. 2.5 kg
(AMN52. This weight does not include
I/O Modules.)
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Installation Restrictions for I/O Module Nest
Yokogawa Small Electric Power Input Module AAM21
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Model AMN12 High-speed Nest for Analog I/O Modules (*1)
-Always install in Nest No. 1.
-Do not install any I/O module nests in Nests No. 2 through No. 4.
-When using non-AMN12 I/O Module Nest with AMN12, always install it in Nest No. 5
Model AMM22T, AMM22TJ (*2)
-Do not install non-AMM22T, AMM22TJ I/O module
below AMM22T, AMM22TJ because AMM22T, AMM22TJ is a module for thermocouple entry. If there were a heat source below AMM22T, AMM22TJ, a reference junction compensation
error occur.
-If there is another module (heat source) below AMM22T, AMM22TJ when using 19” Rack Mountable Type,
a thermal shield must be inserted between AMM22T, AMM22TJ
and the heat source (See Figures 6 and 7).
Model AMN51 Nest for Communication Cards (*3)
-Only
one nest is installable in PFCS/PFCD.
Its position is fixed as Nest No. 2.
AMN52 Nest for PROFIBUS Communication Module
-Only one nest is installable in PFC£. Its position is fixed as Nests No. 1 and 2. AMN52 cannot be combined with AMN51.
Small Electric Power Input Module
This
module receives signals from mV,
thermocouple, RTD and potentiometer.
Yokogawa Small Electric Power Input Module AAM21
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Item
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Specifications
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Model
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AAM21, AAM21J (*4)
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Input signal
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mV
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JIS,IEC Standard Thermocouple type K, T, J, E, B (*1), R, S, IEC Standard type N
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RTD JIS JPt100 or
JIS Pt100 (DIN Pt100)
3-wire type
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3-wire potentiometer’s
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Input range
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-50 to 150 mV
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-50 to 150 mV
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0 to 333 Ω
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The total residence is within 100 to 2000 Ω, and the span is 50 % or more of the total resistance.
(*2)
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Allowable input voltage
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-0.5 to 4.0 V DC (between terminals B-C)
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-
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Input resistance
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1 M V at power-up (3 k V at power-down)
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-
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Accuracy
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±20 µV
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±20 µV
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±0.08 V
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±0.2 %
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Data update period
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100 ms
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Signal source resistance
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1000 Ω or less
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150 Ω or less (wiring resistance per wire)
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RJC input
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-
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-10 to 70 °C
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-
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RJC accuracy
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-
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Within ± 1 °C (*3)
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-
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Measuring current
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-
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1 mA
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-
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Auxiliary voltage output
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1 to 5 V DC (Signal ground is shared with system) Output resistance: 1 Ω or less
Allowable load resistance: 10 kΩ or more
Output range: 0.5 to 5.5 V DC Accuracy: ±12 mV
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Burnout detection
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Select from UP/DOWN/OFF (*5)
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Burnout detection time
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Within 60 sec
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Burnout detection current
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0.1 µA (terminal B only) (*5)
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How installed
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Installed in AMN11 Nest for Analog I/O Modules
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How connected
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Connected to the terminals of the I/O module nest with M4 screws
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Signal isolation
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Input signals are isolated between systems. Withstanding voltage: 1500 V AC/min
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Current consumption
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150 mA or less (5.0 V DC)
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Input linearization
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None
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Available
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Available
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None
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Effect of signal source resistance/wiring resistance (burnout is OFF)
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1 kΩ of signal source resistance: Input conversion
± 20 µV or less
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Wiring resistance 10 Ω for terminals A and C: In- put conversion ±40 mΩ or less (Wiring of terminals
A and C must have the same resistance)
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-
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Effect of ambient temperature change
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For 10 °C change: mV input: ±40 µV
Thermocouple input: ±40 µV
RTD input: ±0.16 Ω
Potentiometer input: ±0.4 % of span
Auxiliary voltage output: ±24 mV
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-
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How input signals are specified
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Specify input signals and range by software setting.
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Option Specifications for Thermocouple
When
using the AAM21 for thermocouple
input, order the temperature compensation module for each channel.
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Description
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Model
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AAM21, AAM21J
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Option Code
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/RJ
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Temperature Compensation Module for Thermocouple Input
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