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14
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15
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16
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SBCs and Backplanes
Pre-Configured Systems
16/24-ch Relay Board
16-ch Power Relay Board
Features
Compatible with PC-LabCard™ products with 20-pin digital output connector and
50-pin Opto-22 digital output connector (PCLD-785B only)
Automatic selection of control logic (PLCD-785B only): Negative logic for the
Opto-22 connector Positive logic for the 20-pin flat cable connector
Screw terminals for easy output wiring
LED status indicators
Specifications
Relay
Channels PCLD-785: 16 (CN1, 20-pin conn.)
PCLD-785B: 16 (CN1, 20-pin conn.)
24 (CN2, 50-pin conn.)
Contact Ratings 120 V
AC
@ 0.5 A, 30 V
DC
@ 1 A
Contact Resistance < 100 mΩ
Operation Time 5 ms max.
Insulation Resistance 100 MΩ
Life Expectancy 5 x 10
5
@ 110 V
AC
/0.3 A
5 x 10
5
@ 24 V
DC
/1.25 A
Relay Type SPDT (Single-Pole Double-Throw) Form C
Release Time 5 ms max.
General
Dimensions (L x W) PCLD-785: 114 x 220 mm (4.5" x 8.7")
PCLD-785B: 132 x 220 mm (5.2" x 8.7")
Power Consumption 5 V @ < 100 mA; 12 V @ 33 mA for each relay
Connectors 20-pin connector:
5 V
DC
: Jumper select either PC bus or external supply
12 V
DC
: Jumper select either PC bus or external supply
50-pin connector: external 12 V supply
Ordering Information
PCLD-785 16-ch Relay Board w/ One 1m 20-pin Flat Cable
PCLD-785B 24-ch Relay Board w/ 20-pin & 50-pin Flat Cables
PCL-10120-1 20-pin Flat Cable, 1 m
PCL-10120-2 20-pin Flat Cable, 2 m
PCL-10150-1.2 50-pin Flat Cable, 1.2 m
Features
Accepts 20-pin or 50-pin (Opto-22 compatible) connectors
16 single-pole single-throw (SPST) relays
High-power relay handles up to 5 A @ 250 V
AC
Onboard varistors protect all relay contact points
Industrial screw terminals for ease of wiring
LED status indicators
5 V/ 12 V power/status LED indicator
Specifications
Relay
Channels 16
Contact Rating 250 V
AC
@ 6 A
30 V
DC
@ 5 A
Contact Resistance 30 mΩ max.
Insulation Resistance 1,000 MΩ @ 500 V
DC
Life Expectancy >100,000 cycles at rated load
Relay On Time 6 ms max.
Relay Off Time 3 ms max.
Relay Type SPST (Form A), normally open
Varistor
Clamping Voltage 760 V (10 A)
Max. Peak Current 1,200 A for 8 msec.
Max. Applied Voltage 300 V
RMS
AC continuous
Varistor Voltage 470 V (current = 1 mA)
General
Power Consumption 12 V @ 22 mA for each relay,
352 mA if all relays energized; 5 V @ 200 mA max.
Connectors
Input: 20-pin flat cable or 50-pin Opto-22 compatible
Output: Barrier strip screw terminal
Dimensions (L x W) 205 x 114 mm (8" x 4.5")
Operating Temperature 0 ~ 60° C (32 ~ 140° F)
Ordering Information
PCLD-885 16-ch Power Relay Board w/ 20p & 50p Flat Cables
PCLD-785/B
PCLD-885
PCLD-885PCLD-785/B
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