ES-4574 Rev.4
38BSH3
DCS Input/Output Relay Card Series
ONE-SHOT OUTPUT RELAY CARD
(with test switch)
Functions & Features
• Accepting status signals from a DCS
• With test switch
• Status LED for input
• Attaching jumper enables to switch N.O. or N.C. contact of output relay and common or separation of start and stop
MODEL: 38BSH3-[1]–R
ORDERING INFORMATION
• Code number: 38BSH3-[1]-R
Specify a code from below for [1].
(e.g. 38BSH3-0-R)
[1] TEST SWITCH
0
: None
1
: With
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
Housing material
: Flame-resistant resin (black)
Isolation
: Input or power to ch.1 to ch.2
Power interruption
: Operate at ≥ 150 msec.
Status LED
: Turn on when input is on or test switch is on
Test switch
AUTO
: Output the signal by input
OFF
: Forced input signal off
ON
: Forced input signal on
OPERATION
INPUT SPECIFICATIONS
Input
: Dry contact or open collector
Approx. 3 V DC (2.5 mA)
ON resistance
: ≤ 200 Ω
OFF resistance
: ≥ 100 kΩ
Minimum input interval
: 10 sec.
OUTPUT SPECIFICATIONS
Output
: Dry contact
Rating
: 250 V AC @ 3 A (cos ø = 1)
30 V DC @ 3 A (resistive load)
Maximum switching voltage
: 250 V AC or 120 V DC (0.2 A)
Maximum switching power
: 750 VA or 90 W
Minimum switching load
: 5 V DC @ 10 mA
One-shot pulse width
: 1.5 – 2.5 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.)
Attaching jumper to SHORT or OPEN of CH1 COM and CH2 COM enables to switch common or separation.
INSTALLATION
Current consumption:
Approx. 50 mA
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 95 %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 ch.1 to ch.2 to ground)
500 V AC @ 1 minute (ch.1 start - ch.1 stop)
500 V AC @ 1 minute (ch.2 start - ch.2 stop)
(Non-isolation when common is connected)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Measurement Category II (output)
Pollution Degree 2
Input or power to ch.1 to ch.2: Reinforced insulation
(300 V)
RoHS Directive
EXTERNAL VIEW
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM