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THIS PRODUCT IS
DISCONTINUED
[SPARES ARE AVAILABLE]
SAM500
Statistical Process Controller
 The
SAM 500 (Signature Analysis Module) mounts on a proprietary Backplane. There are 3
different Backplanes available: the BU04 has room for 2 SAM units, the BU07 has room for
3, and the BU11 which can hold 5. It is connected to an RSCB (Remote Signal Conditioning
Module) via a multi-pair cable with 25-pin D-shell connectors. Machine controls and
operator interface 24V level digital I/O via a 25-pin D-shell connector. The
SmartSAM™ version communicates serially with a controlling terminal via a 9-pin male
D-shell connector. The SAMview™ version communicates using ARCNET® protocol with a
controlling computer via dual BNC connectors. The SAM 500module monitors up to eight
strain gauge input channels at sampling intervals determined by a machine-mounted resolver
or incremental encoder. It compares the measured values in real time with predetermined
limits. If any measured value exceeds a limit the SAM 500sends a command to the machine
(Top Stop, Emergency Stop, etc.). Operation of the SAM 500 and observation of process data
through the SAM 500 is facilitated through the use of PC-based software such as
SAMview™, SPCview™, FeatureView™ and the MPMview software suite.
Specifications:
Communication
Section
 | Serial Channel: 1 RS-232 port. |
| Baud Rate: 9600 or 19.2 KBaud. |
| Function: Factory diagnostics or external VT-11 display drive. |
| Terminals: 3 pins in connector J1 (TXD, RXD, Signal Ground). |
| Arcnet Channel: 1 Arcnet port (Arcnet version). |
| Baud Rate: 2.5 MBaud. |
| Function: Communication with controlling computer. |
| Cable Impedance: Either 75 ohm or 93 ohm coaxial cable may be
used for the network. Network must be terminated at both ends with a resistor that matches
the cable impedance. |
| Terminals: 2 BNC connectors on removable connector block. Both
connectors are in parallel. May be used to connect SAM in a bus (daisy chain) network or
terminate last SAM in chain. |
Digital Input/Output Section
| Number of Channels: 4 input and 4 output. |
| Isolation: Each input and output is optically isolated and
floating. |
| Input Drive: +5 to +28 volt signal applied across input
terminals causes input to conduct. Input appears as a 1.6 Kohm resistor (3 mA at 5 volts,
17 mA at 28 volts). |
| Output Drive: withstand 60 volts when not conducting and will
drop to less than 2 volts when conducting up to 100 mA. Output appears as an open
collector transistor shunted by a reverse current protection diode. |
| Terminals: 16 pins in connector J2 (+ and - for each input or
output). |
Analog Input Section
| Number of Channels: 8 |
| Input Signal: ±5 volt differential signal (for full scale
output). |
| Common Mode Voltage: -5 to +5 VDC. |
| Conversion Factor: 10.0 differential volts at input (5.0
millivolts at RSCB strain gauge input) produces full scale (2047 counts). |
| Terminals: 17 pins in connector J3 (+ and - for each channel,
analog ground). |
Resolver Section (Resolver
Version)
| Excitation: +2 VAC RMS at 2.5 KHz. to resolver R1, R2
connections. |
| Resolution: 10, 12, 14 or 16 bits (1024, 4096, 16384 or 65536
pulses per revolution) selected by internal jumpers. |
| Terminals: 7 pins in connector J3 (R1, R2, S1, S2, S3, S4,
digital ground). |
Encoder Section (Encoder
Version)
| Resolution: 1 or 2 pulses per A/B quadrature set selected by
internal jumpers. |
| Terminals: 7 pins in connector J3 (±A, ±B, ±Z, digital
ground). |
Operating Environment
| Input Power: 5.0 VDC 2 Amps from BU04, 07 or 11 backplane. |
| Temperature Range: 0 to 55 C. |
| Installation: SAM may be plugged into any available slot in
backplane. Backplane may be mounted in NEMA 12 or better enclosure. |
MODEL AND SUFFIX CODES
| Model: SAM (standard), ArcSAM (with Arcnet). |
| Suffix: -8E for Encoder version. -8R for Resolver version. |
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