Model 2652 and 2653 are  members of Sensoray's 2600 series of smart I/O modules. Model 2652 monitors and controls any combination of up to 8  standard solid state relays (SSRs)and the 2653 can handle up tp 16 SSRs.  They provide I/O services to a 2601 communication module, which in turn enables remote Ethernet clients to monitor and control the SSRs.

The module’s micro controller communicates with the 2601 through an optically isolated serial interface.  This eliminates potential ground loops and ensures error-free operation in demanding industrial environments. A single Category-5 UTP cable carries all micro controller power and communication signals.
 
Solid-State Relays
Sockets are provided for 8 or 16 SSRs. Each SSR socket may be populated with any supported SSR type, including AC in, AC out, DC in and DC out.  SSRs are secured to the module with integral hold-down screws. Available solid-state relays can be found here.

On-board, finger-safe connectors enable direct connections to field wiring without the need for intermediate terminal blocks.  Two connectors are provided for each SSR, one for the line connection and one for the load.  This simplifies field wiring and enables load devices to be easily connected and disconnected for quick servicing.

A chart with available solid-state relays can

Input Debounce
A micro controller applies a 10 millisecond software debounce filter to all input SSRs. Input de bouncing helps to minimize errors resulting from electromechanical switch bounce.

Pulse Width Modulation
Each output SSR may be explicitly controlled by the client, or it may operate as a PWM output with rate and duty cycle specified by the client.  This feature greatly simplifies the closed-loop control of devices such as electric heaters.

Status Indicators
Each SSR circuit includes an LED that lights when the SSR is energized.  Other LED status indicators include RST, which flashes briefly in response to a reset, HBT, which flashes at 2Hz to indicate error-free micro controller operation, and XMT, RCV and LNK, which indicate communication activity.

Interlocks
Both modules support up to five independent interlock circuits that supply interruptible voltages through safety contacts (e.g., safety interlocks, emergency stop switches).  Each output SSR is shunt-configured to derive its logic power from one of the interlock circuits. An output SSR will unconditionally de-energize when its interlock voltage is interrupted, ensuring fail-safe deactivation when safety conditions require it.

Two connectors are provided for the interlock circuits.  One of these connects to the interlock voltage sources. The other connector may be used to pass through the interlock voltages to other modules such as 2610 Relay I/O modules or additional 2652/2653 modules.  This “daisy-chain” system eliminates the external termination boards that are often required for interlock circuits.

I/O Modules
A wide range of I/O module types are available.  Each I/O module type has a specialized function such as analog I/O, thermocouples,  relays, digital I/O, etc.  A low-cost category-5 patch cable connects each I/O module to its Communication Module. Any combination of I/O modules may be connected to a Communication Module.

All I/O modules have on-board DC/DC converters to power module circuitry. This feature helps to prevent ground loops and associated common mode voltage problems when the I/O modules are distributed over long distances.  In addition, the inter-module communication circuits are optically isolated so as to eliminate communication ground loops.

Model 2601	Communication module
Model 2608-0	16 analog and TC inputs (16 bit)
Model 2608-4	16 analog and TC inputs (16 bit), 4 analog outputs (16 bit)
Model 2608-8	16 analog and TC inputs (16 bit), 8 analog outputs (16 bit)
Model 2610	48 digital I/O, 5VDC to 24VDCModel 2612
Model 2612	Strain Gauge via Ethernet
Model 2620	4 encoder/counter/frequency interfaces (32 bit)
Model 2650	8 relay outputs, 0V to 240V @ 10A
Model 2652	SSR I/O Module (Supports 8 SSRs)
Model 2653	SSR I/O Module (Supports 16 SSRs)
Model 204	Power supply, 24 VDC @ 5A

 
Design Assistant
Use our design assistant to help you configure a system unique to your specifications and calculate pricing.

Field Wiring
I/O modules employ two-piece mating connectors for quick connections to all field wiring.  External termination boards are not required, as all field wiring connects directly to the I/O modules. This helps to minimize intermediate termination systems and wiring, thereby reducing both material and assembly costs.

Mechanical
Series 2600 modules are supplied as open-frame circuit boards mounted in robust, uniform 100-mm wide DIN rail mountable frames. These are designed to quickly attach to and detach from standard 35-mm-wide DIN rails. Unlike panel mounted products, DIN rails do not require precise mounting hole positions and time-consuming assembly, thus lowering overall installation costs.

Open-frame design has been applied to all modules in the 2600 family.  Field wiring connectors are conveniently located at module edges for easy cable routing into adjacent wiring ducts. This eliminates the expensive module enclosures that are often required by competing products.

The Communication Module implements a high-performance, preemptive multi-tasking operating system and UDP/IP stack in firmware. As a result, it boots up in approximately one second. All of the essential standard network protocols are supported: IP, UDP, ICMP, and ARP. It employs a static IP address that can be programmed by connecting a null-modem cable between a PC and the module’s COM4 serial port.

Full-featured Windows 98/NT/2000/XP and Linux libraries are available at Sensoray’s web site, along with comprehensive sample programs.

2600 Hardware Manual	Released2/23/06
2600 Programming Guide	Released 2/23/06
2600 Software Development Kit	Released 2/23/06
2600 LabView Software	Released 10 /17/07
LabVIEW Software Interface	Click for Image

Function
Solid-State Relays	Number of sockets	8 or 16 (SSRs not included)
	Dimensions	0.6W x 1.7L x 1.25H (inches).
	Supported types	Any combination of Grayhill 70- series (24V logic) or equivalent.
Temperature	Operating range	0 to 70 C.
Power	Input power	+24V ±5% @ 310mA, with eight energized 70-OAC24 SSRs (not included)
Mounting	DIN rail size	35 mm wide rail
2652 Dimensions	Outer dimensions	4.75" W x 8.63" L x 2.50" H - with relays installed, including SSRs and DIN mounting frame. Depth is specified with respect to surface of DIN rail support panel.
2653 Dimensions	Outer dimensions	4.75" W x 11.03" L x 2.50" H - with relays installed, including SSRs and DIN mounting frame. Depth is specified with respect to surface of DIN rail support panel.

Model 2652 Dimensions

Model 2653 Dimensions

Model 2652 Interlock

Model 2652 Typical Relay Circuit

Solid-State Relays

Model 2600 Series	Industrial I/O via Ethernet		Please use our design assistant
Model 2601	Communication Module	Qty 1: $463	Qty 2-9: $421
Model 2652	8 SSR I/O Module	Qty 1: $213	Qty 2-9: $201
Model 2653	16 SSR I/O Module	Qty 1: $242	Qty 2-9: $220
Model 204	24 V power supply	Qty 1: $122	Qty 2-9: $111
Model 26C3	3 ft category-3 cable	Call for current prices
Model 26C50	50 ft category 5E	Call for current prices
Model 26C100	100 ft category 5E	Call for current prices
Model 2600C1	Power Daisy Chain cable	Qty 1: $14.55	Qty 2-9: $14.55
Model 2601C1	3 ft. Cat 3 or higher patch cable	Qty 1: $10	Qty 2-9: $10
Model 2601C2	6 ft. Null modem cable	Qty 1: $8	Qty 2-9: $8
Solid-State Relays	View available options	Qty 1: $15	Qty 2-9: $15