The solid-state relay I/O modules are used as power control and voltage monitoring interfaces between high level DC or AC lines and TTL logic levels. The modules are in a slim, space-saving form. Four functions are offered: DC Input, DC Output, AC Input, and AC Output.

The A24A can hold up to 24 modules. Field-side terminations are provided via convenient terminal strips with points isolated from each other. The logic side has a common logic supply bus with screw terminals for input power connections. Logic-side connections are via a 50-conductor edge connector.

APPLICATION GUIDE

Any of ACCES' buffered digital I/O cards (IOD-24, IOD-48S, IOD-72, or IOD-120) may be used and one 24-bit port will be used per A24A. Various combinations of I/O modules can be intermixed on one A24A mounting card. However, each contiguous group of eight channels must contain only input or output modules. If more than 24 I/O modules are required, additional 24-bit ports may be necessary.

In some cases, logic power required can exceed the current handling capability of digital I/O cards. For these instances, an external 5 VDC power supply is recommended. Screw terminals are provided on the card for those power supply connections in addition to a jumper next to the terminal strips that should be cut.

Specifications

General

• Operating Temperature Range: -30° to 80°C.
• Storage Temperature Range: -40° to 100°C.
• Isolation: 4000 V.
• Input-to-Output Capacitance: 8pF.
• Mounting Card Dimensions: 14.05" long x 3.50" wide.
• Module Dimensions: 1.70" long x 0.43" wide.

DC Input Modules

Input	IB5S (IDC5B Type)	IN5S¹ (IDC5 Type)
Input Voltage Range	3.3 - 32 VDC	10 - 60 VDC/AC rms
Input Resistance	1 KW	N/A
Max. Input Current²	24 mA	24 mA
Drop Out Current	1.0 mA	1.0 mA
Max. Offstate Voltage	2.0 VDC	2.0 VDC / VAC rms

Output	IB5S (IDC5B Type)	IN5S¹ (IDC5 Type)
Logic Supply Voltage	5.0 VDC	5.0 VDC
Logic 0 Voltage Range (@ pin 3)	1.5 - 6.0 VDC	1.5 - 6.0 VDC
Typical Logic Supp. Current²	10 mA	10 mA
Max. Output Leakage Current³	10 µA	10 µA
Max. Turn-On Time	300 µSec	20 mSec
Max. Turn-Off Time	600 µSec	30 mSec

 

DC Output Modules

Input	OB5S (ODC5 Type)	OC5S (ODC5A Type)
Nominal Input Voltage	5.0 VDC	5.0 VDC
Input Voltage Range	2.5 - 7.5 VDC	2.5 - 7.5 VDC
Drop Out Voltages	1.0 VDC	1.0 VDC
Max. Input Current	27 mA w/o LED	27 mA w/o LED
Typical Input Current	10 mA DC	10 mA DC
Nominal Input Resistance	240 W	240 W

Output	OB5S (ODC5 Type)	OC5S (ODC5A Type)
Max.Line Voltage	60 VDC	200 VDC
Min. Line Voltage	3.0 VDC	5.0 VDC
Max. Off State Voltage	60 VDC	200 VDC
Max. Off State Leakage	1.0 mA DC	2.0 mA DC
Max. On State Current	3.0A DC4	1.0A DC5
Min. On State Current	10 mA DC	10 mA DC
Max 1-Second Surge	5A DC	5A DC
Peak On State Voltage @ 25°C	1.5 VDC	1.6 VDC
Max. Turn-On Time	50 µSec	50 µSec
Max. Turn-Off Time	100 µSec	100 µSec

 

AC/DC Input Modules

Input	IA5S¹ (IAC5 Type)	IM5S¹ (IAC5A Type)
Nominal Input Voltage	120 Vrms / DC	249 Vrms / DC
Input Voltage Range	90 - 140 Vrms / DC	180 - 280 Vrms / DC
Maximum Input Current³	10 mA rms	8 mA rms
Drop-Out Current	2.5 mA rms	1.5 mA rms
Max. Off-State Input	3.0 mA rms	2.0 mA rms
Max. Off-State Voltage	50 Vrms / DC	120V rms

Output	IA5S¹ (IAC5 Type)	IM5S¹ (IAC5A Type)
Logic Supply Voltage	5.0 VDC	5.0 VDC
Logic 0 Voltage Range (@ pin 3)	1.5 - 6.0 VDC	1.5 - 6.0 VDC
Typical Logic Supp. Current²	10 mA DC	10 mA DC
Max. Logic Supp. Current³	18.5 mA	18.5 mA
Max. Logic Supp. Leakage³	10 µA	10 µA
Max. Output Voltage	30 VDC	30 VDC
Max. Output Current	50 mA DC	50 mA DC
Max. Output Leakage Current³	10 µA	10 µA
Max. Output Voltage Drop6	200 mV	200 mVDC

 

AC Output Modules

Input	OA5S¹(OAC5 Type)	OM5S (OAC5A Type)
Nominal Input Voltage	5.0 VDC	5.0 VDC
Input Voltage Range @ pin 3	2.5 - 7.5 VDC	2.5 - 7.5 VDC
Drop-Out Voltage	1.0 VDC	1.0 VDC
Max. Input Current	27 mA w/o LED	27 mA w/o LED
Typical Input Current7	10 mA	10 mA
Nominal Input Resistance	240 W	240 W

Output	OA5S¹(OAC5 Type)	OM5S (OAC5A Type)
Nominal Line Voltage	120 Vrms	240 Vrms
Line Voltage Range	12 - 140 Vrms	24 - 280 Vrms
Max. Peak Off-State Voltage	400 V	600 V
Max. Off-State Leakage	2.5 mA rms	4.5 mA rms
Static Off-State (dv/dt)	200 V/µSec	200 V/µSec
Max. On-State Current4	3.0A rms	3.0A rms
Min. On-State Current	50 mA rms	50 mA rms
Max. 1-Cycle Surge	100A peak	100A peak
Peak On-State Voltage	1.6V peak	1.6V peak

Notes:

1. Can be used with either DC or AC inputs.
2. At nominal voltage with LED on board.
3. At maximum logic voltage.
4. Derate 33 mA/°C above 25°C.
5. Derate 20 mA/°C above 60°C.
6. At maximum output current.
7. LED in series w/nominal voltage.

Regulatory Compliance

Declaration of Conformity, and Test Reports are on file. Users must use appropriate shielded cables.

Part Number	Price(USD)
A24A	149.00
A16A	85.00
IB5S	10.50
IN5S	10.50
OB5S	10.50
OC5S	11.60
IA5S	10.50
IM5S	11.60
OA5S	10.50
OM5S	11.60

View / Download Data Sheet (in .pdf format)