18AC-AZ66-R

18AC MSYSTEM | Alldatasheet

Document overview

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Technical content

MODEL: 18AC 18AC SPECIFICATIONS ES-1836 Rev.8 Page 1/3 http://www.m-system.co.jp/ Rack-mounted DCS Signal Conditioners 18-RACK AC CONVERTER Functions & Features

• Converting an alternating current/voltage into two standard process signals
• True RMS sensing
• Second channel output available at the front terminals and at the Standard Rack connector Typical Applications
• Converting a large AC current in combination with a shunt resistor, or a narrow span AC voltage MODEL: 18AC–[1]66–R

ORDERING INFORMATION

• Code number: 18AC-[1]66-R Specify a code from below for [1]. (e.g. 18AC-A666-R) [1] INPUT Current AA: 0 – 10 mA AC (Input resistance 100 Ω) AB: 0 – 50 mA AC (Input resistance 20 Ω) AC: 0 – 100 mA AC (Input resistance 10 Ω) AD: 0 – 500 mA AC (Input resistance 1 Ω) AZ: Specify current (See INPUT SPECIFICATIONS) (0 % input must be 0 mA.) Voltage A1: 0 – 100 mV AC (Input resistance 10 kΩ min.) A2: 0 – 500 mV AC (Input resistance 10 kΩ min.) A3: 0 – 1 V AC (Input resistance 10 kΩ min.) A4: 0 – 5 V AC (Input resistance 200 kΩ min.) A5: 0 – 10 V AC (Input resistance 200 kΩ min.) A6: 0 – 120 V AC (Input resistance 200 kΩ min.) A7: 0 – 150 V AC (Input resistance 200 kΩ min.) A8: Specify voltage (See INPUT SPECIFICATIONS) (0 % input must be 0 V.) OUTPUT 1 Voltage 6: 1 – 5 V DC (Load resistance 2000 Ω min.) OUTPUT 2 Voltage 6: 1 – 5 V DC (Load resistance 2000 Ω min.) POWER INPUT DC Power R: 24 V DC (Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) GENERAL SPECIFICATIONS Construction: Rack-mounted; terminal access via screw terminals on the front and connector on the rear; terminal cover provided Connection Input: M3.5 screw terminals (torque 0.8 N·m) Output 1: Connector Output 2: M3.5 screw terminals (torque 0.8 N·m) and connector Power input: Supplied from connector Screw terminal: Nickel-plated steel Isolation: Input to output 1 to output 2 to power Input waveform: Up to 15 % of 3rd harmonic content Overrange output: 0 to 120 % at 1 – 5 V Zero adjustment: -5 to +5 % (front) Span adjustment: 95 to 105 % (front) INPUT SPECIFICATIONS Frequency: 40 Hz min., 1 kHz max. ■ AC Current: 0 – 1 A AC; input resistor incorporated Minimum span: 1 mA Input resistance Span 1 mA: 1 kΩ Span ≤ 2 mA: 500 Ω Span ≤ 5 mA: 200 Ω Span ≤ 10 mA: 100 Ω Span ≤ 20 mA: 50 Ω Span ≤ 50 mA: 20 Ω Span ≤ 100 mA: 10 Ω Span ≤ 500 mA: 1 Ω Span ≤ 1 A: 0.5 Ω ■ AC Voltage: 0 – 250 V AC Minimum span: 50 mV Input Resistance Span 50 mV – 3 V : ≥ 10 kΩ Span ≥ 3V : ≥ 200 kΩ

MODEL: 18AC 18AC SPECIFICATIONS ES-1836 Rev.8 Page 2/3 http://www.m-system.co.jp/ INSTALLATION Current consumption: Approx. 35 mA Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: Standard Rack 18BXx or 18KBXx Weight: 150 g (0.33 lb) PERFORMANCE in percentage of span Accuracy: ±0.4 % Temp. coefficient: ±0.02 %/°C (±0.01 %/°F) Response time: ≤ 0.5 sec. (0 – 90 %) Ripple: 0.5 %p-p max. (100/120 Hz) Line voltage effect: ±0.1 % over voltage range Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 1500 V AC @ 1 minute (input to output 1 or output 2 or power)

500 V AC @ 1 minute

(output 1 to output 2 to power)

1500 V AC @ 1 minute

(input or output or power to ground) EXTERNAL DIMENSIONS unit: mm (inch) 110 (4.33 ) 93 (3.66) 24 (.94) 7 (.28) 78 (3.07)32 (1.26) 8–M3.5 SCREW 7 (.28) 2–M3 SCREW TERMINAL ASSIGNMENTS 1 2 3 4 7 8 5 6

MODEL: 18AC 18AC SPECIFICATIONS ES-1836 Rev.8 Page 3/3 http://www.m-system.co.jp/ SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM Isolation Output Driver OUTPUT 2 SZ Output Driver CONNECTOR OUTPUT 2 OUTPUT 1 POWER INPUT 1 AC Amplifier RMS Operation SZ *Input shunt resistor incorporated for current input. Specifications are subject to change without notice.