ES-4570 Rev.2
38BSH2
DCS Input/Output Relay Card Series
ONE-SHOT OUTPUT RELAY CARD
MODEL: 38BSH2–R
ORDERING INFORMATION
• Code number: 38BSH2-R
POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
RELATED PRODUCTS
• Standard Rack (model: 38BXx)
GENERAL SPECIFICATIONS
Construction
: Rack-mounted; terminal access via screw terminals on the front and connector on the rear; terminal cover provided
Connection
Input
: Connector
Output
: M3.5 screw terminals (torque 0.8 N·m)
Power input
: Supplied from connector
Screw terminal
: Nickel-plated steel
Isolation
: Input or power to each output
Indicator LED
: Red LED turns on when the coil is energized.
OPERATION
1. With the controller output (DCS status signal) turned OFF, the STOP one-shot is output when the power input is turned on.
2. With the controller output (DCS status signal) turned ON, the START one-shot is output when the power input is turned on.
3. LEDs indicate the output relay operations.
INPUT SPECIFICATIONS
Input
: DCS status output
Rating
: 24 V DC @ 3 mA (approx.)
≤ 200 Ω at ON; ≥ 100 kΩ at OFF
Minimum input interval
: 10 sec.
OUTPUT SPECIFICATIONS
Output
: Relay contact
Rating
: 250 V AC @ 3 A (resistive load)
30 V DC @ 3 A (resistive load)
Minimum switching load
: 5 V DC @ 10 mA
One-shot pulse width
: 0.2 – 2 sec. (fixed)
Relay life
Mechanical
: 5 × 10
7
cycles
Electrical
: 10
6
cycles
External protection
: Recommended to protect the contact and to eliminate noise when driving an inductive load (coils, etc.)
INSTALLATION
Current consumption:
Approx. 50 mA
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Standard Rack 38BXx
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)
1000 V AC @ 1 minute (between outputs; with output open)
EXTERNAL VIEW
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM