ORION Machine I/O

Integral machine I/O for the ORION® motion controllers is conveniently located behind the hinged front cover.

An I/O circuit board is directly interfaced to the controller's System Module and provides:

• 16 integral discrete I/O points which include sockets to mount Generation 4 (G4) Opto-22 style I/O modules which have integral replaceable fuses and status LEDs,
• Optional Extended I/O interface for 24 discrete I/O or access to 512 remote discrete and analog I/O via Opto-22’s Pamux standard,
• Emergency Stop, No-Fault Interlocks, and
• 24 VDC & 12VDC I/O power.

Integral Discrete I/O
Each ORION® controller includes 16 integral discrete I/O points. Machine I/O signals are conveniently wired to the controller at removable terminal blocks on the discrete I/O board, and are interfaced to the system through G4 Opto-22 style plug-in modules. These industry standard G4 I/O modules provide optical isolation for these machine signals, and support a wide range of AC and DC voltages and currents.

All sixteen I/O points are independently selectable through software as inputs or outputs. When used as inputs, they are configured to be read directly or be "latched" on either "high" or "low" transitions of the input voltage. These inputs are used to "interrupt" and cause "events" in the MotionBASIC® program.

The MotionDesk development software allows the user to interactively select the configuration of each of these I/O points as well as the extended I/O points. Configuration is accomplished by simply moving the cursor to the appropriate I/O point number in the window and scrolling through the available options.

Dual Voltage I/O Power
An isolated 24 VDC power supply rated at 1.6 amps is provided to power the discrete I/O circuitry and sensors as well as Emergency Stop and No Fault interlock circuitry. A 12 VDC power supply is regulated from it, providing up to 500 milliamps at the terminal block to power low voltage sensors and modules. These power sources are interfaced at a removable terminal block on the discrete I/O board. A common I/O power bus V+ and C can be conveniently jumpered to either power supply and its return.

E-Stop and No Fault Relay I/O
Four independent secondary Emergency Stop/No-Fault Relay positions are provided to implement independent E-stop switches to independent machine control circuits. Once configured in the system configuration file, holding an E-stop input "on" will keep the corresponding No-Fault Relay "on" only if defined fault conditions in the ORION® motion controller are satisfied and cleared. A normally-open, held-closed dry contact relay (G4-ODC-5R) is available for each No-Fault Relay position. Both AC & DC voltages can be switched with this relay.

Input / Output Modules
Input/Output modules provide a means of reliably interfacing between ORION® motion controllers and external input devices and loads such as switches, sensors, solenoids, valves and motor starters.

Eight I/O modules are offered in six optically isolated types:

• AC & DC inputs,
• AC & DC outputs,
• a fast DC input and;
• a Relay Module.

The I/O modules are color coded by function and provide a high degree of isolation and noise immunity between the motion controller and external components.

The AC output modules utilize zero voltage turn-on and zero current turn-off of the load to greatly reduce generated EMI and RFI. They also feature an internal dv/dt snubber network for protection from voltage transients on the line.

All I/O modules feature internal LED indicators and all output modules also have a replaceable fuse.

MotionBASIC® Interface
All discrete and analog I/O points in the system are accessed from MotionBASIC® as ORMEC pre-defined array variables DIO@ and AIO@, with the array indexed on the I/O point number or group I/O point number.

Extended I/O Interface
Selecting the ORION® Extended I/O option adds an interface connector to the bottom of the I/O board.

The extended I/O interface provides access to 24 additional TTL-level I/O points which are interfaced through a 50-pin header connector. When configured as discrete I/O, this connector provides plug compatibility with G4 Opto-22 I/O racks. These racks have sites for 8, 16 or 24 optically isolated I/O points. With discrete mode selected, these I/O points are indexed between 17 and 40. The first eight I/O points may be software configured as inputs or outputs individually. The second and third groups of eight are software configured as inputs or outputs as a group.

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