18DI MSYSTEM | Alldatasheet
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Technical content
MODEL: 18DI 18DI SPECIFICATIONS ES-1885 Rev.8 Page 1/3 http://www.m-system.co.jp/ Rack-mounted DCS Signal Conditioners 18-RACK CONTACT INPUT MODULE Functions & Features
- Buffer relay for providing signals to a DCS system MODEL: 18DI–1–R
ORDERING INFORMATION
- Code number: 18DI-1-R INPUT Dry contact or open collector OUTPUT Relay contact 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: M3.5 screw terminals (torque 0.8 N·m) and connector Power input: Supplied from connector Screw terminal: Nickel-plated steel Isolation: Input or power to output Indicator LED: Red LED turns on when the coil is energized. Test switch AUTO: Relay energized at ON input OFF: Forced relay de-energized ON: Forced relay energized INPUT SPECIFICATIONS ■ Input: Dry contact or open collector Sensing: 24 V DC @ 30 mA OUTPUT SPECIFICATIONS ■ Output: N.O. relay Rating: 120 V AC @ 0.2 A (cos ø = 1) 30 V DC @ 0.2 A (resistive load) Electrical life ≥ 1 × 105 cycles Maximum switching voltage: 264 V AC or 100 V DC Maximum switching power: 24 VA or 6 W Minimum load: 5 V DC @ 10 mA Mechanical life: 5 × 107 cycles ■ Retransmitted output: SPDT relay Rating: 120 V AC @ 1 A (cos ø = 1)
30 V DC @ 1 A (resistive load)
Electrical life ≥ 1 × 105 cycles Maximum switching voltage: 264 V AC or 100 V DC Maximum switching power: 120 VA or 30 W Minimum load: 5 V DC @ 10m A Mechanical life: 5 × 107 cycles For maximum relay life with inductive loads, external protection is recommended. INSTALLATION Current consumption: Approx. 30 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 Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 1500 V AC @ 1 minute (input or power to output to ground)
MODEL: 18DI 18DI SPECIFICATIONS ES-1885 Rev.8 Page 2/3 http://www.m-system.co.jp/ EXTERNAL VIEW Test Switch LED 8 7 1 2 4 3 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: 18DI 18DI SPECIFICATIONS ES-1885 Rev.8 Page 3/3 http://www.m-system.co.jp/ SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM RE-TRANSMITTED OUTPUT INPUT CONNECTOR TEST SW POWER OUTPUT OFF AUTO ON COIL LED Specifications are subject to change without notice.