7I33/7I33T/7I33TA Quad Analog servo interface
The 7I33, 7I33T
and 7I33TA are a 4 axis analog servo interfaces intended for
operation
with MESAs Anything I/O cards in motion control
applications. The 7I33 takes the PWM and direction signals from the
Anythng I/O card and converts them to +- 10V analog output voltages for
direct connection to analog input servo amplifiers. The
7I33
also conditions the encoder input signals with input filters for TTL
inputs or RS-422 recievers for differential encoder inputs.
The
controller connection is a 50 pin header that matches the pinout of
the Mesas Anything I/O
cards.
Another 50 pin header is used for servo amp/encoder
connections. The -TA version uses 3.5 mm
pluggable screw terminal plugs (included). (7I33TA shown)
7I34 Eight Channel RS-422/485 interface
The 7I34 is a 8 channel RS-422 interface for Mesa s Anything
I/O
series of FPGA interface cards. The 7I34 has 8
independent
receive and transmit channels. Each transmit channel has a independent
drive enable for bus or 2 wire half duplex systems. The
controller connection is a 50 pin header that matches the pinout or the
4I34M, 4I38, 4I65, 4I68, 5I20, 5I22, 5I23, 7I43 and 7I60 Anything
I/O cards.
Another 50 pin header is used for RS-422 connections. The
7I34 has an assembly option for receive only applications. This model
(7I34-R) has 16 RS-422 inputs but no outputs .Another assembly option
(7I34-485) replaces the drivers with RS-485 compatible chips. The
7I34 can be used with an Anything I/O card for multiple channel RS-422
serial interfaces, encoder interfaces, and many other industrial
applications.
independent
receive and transmit channels. Each transmit channel has a independent
drive enable for bus or 2 wire half duplex systems. The
controller connection is a 50 pin header that matches the pinout or the
4I34M, 4I38, 4I65, 4I68, 5I20, 5I22, 5I23, 7I43 and 7I60 Anything
I/O cards.
Another 50 pin header is used for RS-422 connections. The
7I34 has an assembly option for receive only applications. This model
(7I34-R) has 16 RS-422 inputs but no outputs .Another assembly option
(7I34-485) replaces the drivers with RS-485 compatible chips. The
7I34 can be used with an Anything I/O card for multiple channel RS-422
serial interfaces, encoder interfaces, and many other industrial
applications.
7I37/7I37T/7I37TA Isolated I/O card
The 7I37 is an 8 output, 16 input isolated I/O card. The 7I37
provides 8 Isolated 48VDC 1A output drivers. All output drivers are low
saturation voltage MOSFETS for low power dissipation. Each of the 8
output switches is isolated from the others, allowing high side, low
side, push-pull and other output switch configurations. The 16 opto
isolated inputs will operate with input voltages from 5 to 24 V.
Reverse protection diodes are provided to allow use with AC inputs. The
7I37 is compatible with the 4I24M, 4I24H, 4I34M, 4I65, 4I68, 5I20,
5I22, 5I23, 7I43 and
7I60 Anything
I/O cards. The -T version uses 3.5 mm screw terminal compatible
plugs for isolated I/O. Two TB24 pluggable terminal blocks are
required for use with the 7I37T (not included). The -TA version version includes all screw terminals
The 7I42 is a breakout card for Mesa's 50 pin I/O FPGA cards.
It is available with 50 pin .1" output connector (7I42) or 3.5mm
headers compatible with pluggable screw terminal blocks (7I42T and 7I42TA). In
addition to providing a breakout function, the 7I42 protects the FPGA
card from excessive input voltages and ESD. The 7I42 protects FPGA I/O
from accidental contact from external voltages of +12 and -5V with
built in diode clamps and 50 Ohm current limit resistors in series with
all I/O pins. The 7I42 limits I/O pin bandwidth to approximately 10 MHz.
Two TB24 pluggable terminal blocks are required for use with the
7I42T (not included). Phoenix compatible 3.5 mm pluggable screw terminals are supplied with the 7I42TA
independent
receive and transmit channels. Each transmit channel has a independent
drive enable for bus or 2 wire half duplex systems. The
controller connection is a 50 pin header that matches the pinout or the
4I34M, 4I38, 4I65, 4I68, 5I20, 5I22, 5I23, 7I43 and 7I60 Anything
I/O cards.
Serial I/O connectors are RJ45 jacks allowing standard CAT5
cables to be used for high speed serial links. The 7I44 also supplies 5V power on the RJ 45 connectors. PTC
devices limit maximum 5V current to 1A . The pinout used is compatible
with Mesa's 3C20 motion controller and the 8I20, 8I21 serially
connected amplifiers.
supplies 5V power to remote SPI
devices via the 10 conductor cables. Total power is limited to 3A. A
built-in high side power switch disconnects SPI power when cable power
is removed
The 7I47 is a 12 channel
RS-422 interface for Mesa s Anything
I/O
series of FPGA interface cards. The 7I47 is designed for motion control
applications, both for buffering FPGA outputs and for conditioning
RS-422 inputs. A common usage of the 7I47 would be connecting up to 6
step+direction step drives to the 7I47s RS-422 outputs and up to 6
encoders (4 with index) to the 7I47's RS-422 inputs. The RS-422 outputs
can be used as single ended outputs for driving ground or +5V
referenced loads. When used as single ended outputs, the 7I47 outputs
swing from 0 to 5V and will sink or source 20mA. 12 LEDS monitor encoder input status. The 7I47 can also supply 5V
power to encoders. The
controller connection is a 50 pin header that matches the pinout of Mesa'a Anything
I/O cards. All buffered I/O is terminated with 3.5 mm pluggable screw terminals (supplied)
The
7I47S is a 12 input, 8 output
RS-422 interface for Mesa s Anything
I/O
series of FPGA interface cards. The 7I47S is designed for motion
control
applications, both for buffering FPGA outputs and for conditioning
RS-422 inputs. In addition the 7I47S has an isolated potentiometer type
analog output. This analog output can be used for spindle speed control
applications. Three opto isolated outputs are also available. One is
intended for direction, one for enable, and one for general
purpose use. The RS-422 outputs
can be used as single ended outputs for driving ground or +5V
referenced loads. When used as single ended outputs, the 7I47 outputs
swing from 0 to 5V and will sink or source 20mA. 12 LEDS monitor
encoder input status. The 7I47 can also supply 5V
power to encoders. The analog output range is
determined by the user supplied analog reference. The analog output
reference can be from 5 to 15 VDC. The
controller connection is a 50 pin header that matches the pinout of
Mesa'a Anything
I/O cards. All buffered I/O is terminated with 3.5 mm pluggable
screw terminals (supplied)
The 7I48 is a 6 axis analog servo interface intended for
operation
with MESAs Anything I/O cards in motion control
applications. The 7I48 takes complementary PWM signals from the
Anythng I/O card and converts them to +- 10V analog output voltages for
direct connection to analog input servo amplifiers. The 7I48 has 5 pole
filters on each analog channel to eliminate output ripple at PWM
frequencies down to 24 KHz. The
7I48
also conditions the encoder input signals for TTL or RS-422
encoder inputs.
The
controller connection is a 50 pin header that matches the pinout of
the Anything I/O
cards. All analog and encoder I/O is terminated with pluggable 3.5 mm
screw terminals (supplied). 
The 7I49 is a 6 channel resolver interface with 6 additional +-10V
analog outputs. The 7I49 is intended for applications that read
standalone resolvers, as the 7I49 generates the resolver reference
excitation. The 7I49 can be used with 1:1 and 1:2 transformation ratio
resolvers. The 7I49 has approximately 14 bits of resolution
and 12 bits of absolute accuracy, The 7I49 FPGA interface
module allows velocity and absolute position readout from
the host. The 7I49 has selectable excitation frequencies, from 2.5 KHz up to 10 KHz. Host
position readout is updated at 256 times the excitation frequency to
reduce aliasing when host sampling is not synchronous with the
excitation frequency. Velocity resolution is approximately 1 RPM. The
7I49 uses a oversampling A-D followed by a tracking filter. Filter
coefficients may be changed to trade off noise versus acceleration
tracking ability. All resolver and analog I/O is via 3.5 MM pluggable
screw terminal blocks. The 7I49 requires a single 5V power supply.
The 7I50 is a 24 I/O SPI expander for use with
MESAs Anything I/O cards. The 7I50 has 24 bidirectional logic
level I/O pins and connects to a SPI interface. The 7I50
can use a TTL level SPI interface or differential SPI. One Anything I/O
connector can drive six 7I50s for a total of 144 I/O points per FPGA
card connector (the 7I46 SPI breakout is a convenient way to wire
multiple 7I50s). SPI data rates up to 8 MHz are supported
allowing a 4 uSec update cycle. The 7I50s I/O connector is a 50 pin
header that matches the pinout of the Anything I/O card and is OPTO22
compatible. I/O pins are open drain and will swing to 5V.Outputs
will sink 15 mA. A buiilt in watchdog sets all outputs to the inactive
state if the 7I50 is not accessed with the proper code with in a
selectable timeout interval. I/O status LEDs are provided for all
24 I/O bits, and SPI link status LEDs monitor SPI connection integrity.
The 7I65 is a eight axis analog servo interface intended for
operation
with MESAs Anything I/O cards in motion control
applications. The 7I65 has eight 16 bit DAC channels and eight TTL or
differential encoder
inputs. In addition the 7I65 has eight 12 bit + sign A-D inputs,
eight isolated motor enable outputs and four isolated digital inputs.
Analog outputs have software selectable ranges that include -10V to
+10V, -5V to +5V, 0V to +5V and 0V to +10V. Analog inputs also have
software selectable ranges including -10V to +10V, -5V to +5V, -2.5V to
+2.5V and 0V to +5V. Input and output ranges can be selected on a
channel by channel basis. All 7I65 Analog I/O is galvanically isolated
from system logic ground to prevent ground loops and digital noise from
interfering with the analog signals. A built in watchdog timer
sets the analog outputs to 0V if the 7I65 has not been accessed within
the settable watchdog timer interval. An on card EEPROM allows analog
gain and offset values to be stored fo software controlled calibration. The
7I65 conditions the encoder input signals with input filters for
TTL
inputs or RS-422 recievers for differential encoder inputs. The
controller connection is a 50 pin header that matches the pin-out of
the
Anything I/O
cards. 3.5 mm screw terminal compatible plugs are used for
motor and misc I/O. All pluggable screw terminal blocks are included with the 7I65.
The THCAD is a frequency to voltage converter type A-D designed for high
noise environments like plasma voltage monitoring for torch
height controls.
The THCAD is available in two voltage
ranges, 0-10V and 0-300V. When used for plasma voltage
monitoring, the 10V version requires an external high voltage
resistor. The advantage of the 10V THCAD and external resistor is that
the resistor can be selected to work with high-frequency start
torches.
The 300V version of the THCAD has all input divider resistor on board
and can connect directly to the plasma voltage of touch start type
torches only. The THCAD has a frequency output range of approximately
100 KHz to 1 MHz. This can be counted directly by our FPGA cards for
conversion to voltage value. The
frequency output can optionally be divided by 32, 64 or 128 if the
output must be counted in software. Frequency and reference frequency
outputs are available. Both outputs are differential for high noise
immunity. The A-D has galvanically isolated inputs (2500V common
mode isolation). The 10V model can withstand a 500V input
overload indefinately. The 300V model can withstand a 2500V input
overload indefinately. Being a frequency to voltage type A-D,
resolution is sample rate dependent and approximately 10 bits at a 1
KHz sample rate and 12 bits at a 250 Hz sample rate. The THCAD is
normally used in unipolar mode but can be jumpered for bipolar mode for
non-plasma applications. The THCAD requires 5V at 150 mA for
operation. Pluggable screw terminal blocks are provided for all
connections.