MTS Systems MK292 User Manual
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Temposonics
®
Position Sensors
MK292 Digital Output Module
Users Manual
0797 550414 Revision B
GENERAL INFORMATION
Phone/Fax Numbers
Phone:
919-677-0100
800-633-7609
Fax:
919-677-0200
Shipping Address
MTS SYSTEMS CORPORATION
Sensors Division
3001 Sheldon Drive
Cary, North Carolina 27513
Office Hours
Mon. - Thurs.:
7:30 a.m. to 6:30 p.m. EST
Friday:
7:30 a.m. to 5:00 p.m. EST
Technical Support (24-Hr.)
Call:
800-633-7609 (after hours, press 5)
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Table of Contents
Section Page
1 INTRODUCTION 1
1.1 System Configuration 2
2 SPECIFICATIONS 3
2.1 MK292 Specifications 3
2.2 Temposonics Position Sensor Specifications 4
3 SYSTEM COMPONENTS 5
3.1 MK292-Compatible Temposonics Position Sensors 5
3.1.1 Temposonics Position Sensor with Start/Stop Output 5
3.1.2 Temposonics Position Sensor with Pulse Width Modulated Output 5
3.1.3 Temposonics Position Sensor with Synchronous Operation 5
4 CONNECTIONS 6
4.1.1 Temposonics II Position Sensors with DPM or RPM 6
4.1.2 SE-based Temposonics LP Position Sensors with Start/Stop Output 6
4.1.3 Temposonics L Series Position Sensors with Start/Stop Output 7
4.2 System Connections 9
4.3 Functional Inputs/Outputs 10
4.3.1 Error Output (Loss of Feedback) 10
4.3.2 Data-Ready Output (Latch Pulse) 10
4.3.3 Data-Hold Input (Latch Inhibit) 11
4.3.4 External Start Input 11
4.3.5 Master/Slave Input 11
5 SYSTEM PARAMETERS 12
6 SHORT FORM PROGRAMMING PROCEDURE 14
7 DETAILED PROGRAMMING PROCEDURE 15
7.1 (RUN) Programming Mode 15
7.2 (REC) Pulse Duration 15
7.3 (SC) Scale Factor 17
7.4 (RE) Resolution 18
7.5 (MR) Measuring Range 19
7.6 (ZERO) Null Adjust 20
7.7 (ZERO) Offset 20
7.8 (RUN) Operation Mode 22
8 OPTIONAL ANALOG OUTPUT FOR THE MK292 23
8.1 Operation Mode 1 (Normal) 23
8.2 Operation Mode 2 (Programmable Adjustment) 24
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1. Introduction to the MK292 Digital Output Module
The MK292 Digital Output Module provides an interface between a Temposonics position sensor with
a pulse-width modulated or start/stop output and a system controller. A selection of outputs from the
MK292 (BCD, binary, or Gray Code) gives this device nearly universal compatibility.
The MK292 is compatible with many Temposonics position sensors, as follows:
Compatible Position Sensors:
• SE-based Temposonics LP sensor with start/stop output
• Temposonics II sensors with a pulse-width modulated or start/stop output
• Temposonics L Series sensors with a pulse-width modulated or start/stop output
In addition to position data, the MK292 generates logic outputs: DATA READY and ERROR; and logic
input: DATA HOLD. An optional sub-board assembly provides an analog output for recording purposes (output range: 0 to 10 Vdc or 10 to 0 Vdc).
The MK292 can be configured as either a rack-mountable card or module that can be installed in a
standard 19 inch mounting rack.
Figure 1-1
MK292 (Module version, left; card version, right)
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Figure 1-2
MK292 Digital Output Module Dimensions
1.1 System Configuration
Figure 1-3
Typical System Configuration
MK292
Module
Magnet
Temposonics Sensor with
Start/Stop or PWM Output
Start/Stop Output
Max. Resolution: 0.002 in. (0.05 mm)
PWM Output
Max. Resolution: 0.0002 in. (0.005 mm)
24 Vdc
Power Suppy
Required
5 Vdc
Required for
TTL Output
Selectable: BCD, Binary, or Gray Code Displacement Output
Optional Voltage Output (0 to 10 Vdc or 10 to 0 Vdc)
for recording purposes only
NOTE:
BCD outputs are limited to a maximum
stroke length of 99.99 inches (2540 mm)
R
E
M
RUN
REC
ZER
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MK 292
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S
S
S
S
S
R
E
M
RUN
REC
ZER
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MK 292
S
S
S
S
S
S
1.19 in.
30.2 mm
1.98 in.
50.4 mm
MK 292
Module
MK 292
Card
6.7 in.
170 mm
6.7 in.
170 mm
5.06 in.
128.4 mm
5.06 in.
128.4 mm
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2. Specifications
2.1 MK292 Digital Output Module Specifications
Parameter Specification
Input Voltage: 24 Vdc (-15%/+20%); Ripple: < 5%
NOTE:
An additional 5V power supply is required for the optional TTL level outputs;
dual power supply (24/5 Vdc) is available from MTS, P/N 380066
Current Draw: 250 mA maximum
Input Requirement: SE-based Temposonics LP with start/stop output*
Temposonics II with PWM or start/stop output
Temposonics L Series with PWM or start/stop output*
Output Format: (Selectable): Up to 24 bit:
• BCD
(maximum stroke length with BCD output scaled in millimeters is 7500 mm. When utilizing
inches, strokes may be up to 300 inches)
• Natural Binary
• Gray Code
Resolution: 0.002 in. (0.05 mm) with start/stop input
0.0002 in. (0.005 mm) with PWM input
Update Frequency: Stroke and resolution dependent
Optional Analog (Recorder) Output :Range: -10 to +10 Vdc
(used for recording; option board required - must be specified upon initial order)
12 bit resolution
5mv ripple
Fully adjustable
Programming Parameters: Zero
Resolution
Stroke Length
Measuring Direction
Analog Output
(used for recording; option board required - must be specified upon initial order)
Operating Temperature: 0 to 60°C (32 to 140°F)
Connection: 64 pin edge connector (DIN 41612; provided with circuit card)
Cable Requirements: 8 x 24 AWG, twisted pairs, shielded low capacitance cable (BELDEN 8105 or equivalent)
w/appropriate number of conductors for sensor used
Maximum Cable Length: Sensor with RS422 output: 500 meters (1640 ft.)
Sensor with PWM output: 152.4 meters (500 ft.)
Dimensions: MK292 Card, Front Panel: 30.2 x 128.4 mm (1.19 x 5.06 in.)
MK292 Module, Front Panel: 50.4 x 128.4 mm (1.98 x 5.06 in.)
* When using the MK292 with a Temposonics LA or LP sensor, please contact Applications Engineering.
Specifications are subject to change without notice. Consult MTS for verification of specifications critical to your application.
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2.2 Temposonics Position Sensor Specifications
For detailed specifications and installation requirements for the position sensors, refer
to the appropriate document, as follows:
• Temposonics II Sensor Installation and Instruction Manual (P/N 550055)
• SE-based Temposonics LP Installation Guide (P/N 550582)
• Temposonics L Series/Digital Product Specification (P/N 550539)
Parameter Specification
Input Voltage: Powered from MK292 Module
Stroke Length: Temposonics II: Up to 300 inches (7620 mm)
SE-based Temposonics LP: Up to 48 inches (1219 mm)
Temposonics L Series: Up to 120 inches (3048 mm)
Non-linearity: Temposonics II: < ±0.05% of full scale or ± 0.002 inch (±0.05 mm), whichever is greater
SE-based Temposonics LP: ± 0.1% of full scale or ± 0.004 in. (±0.10 mm), whichever is greater
Temposonics L Series: 0.03% of full scale
Repeatability: ± 0.001% of full scale or ±0.0001 inch (± 0.002 mm), whichever is greater
Operating Temperature: Head Electronics: - 40 to 150°F (- 40 to 66°C)
Sensor Rod: - 40 to 185°F (- 40 to 85°C)
Operating Pressure: Temposonics II Rod-Style Sensors: 3000 psi continuous, 8000 psi static typical
Temposonics L Series Rod-Style Sensors (Model LH): 5000 psi continuous, 10,000 psi static
Outputs (absolute): Start/stop or PWM configured for
external
interrogation
Mounting Distances: Sensor with RS422 output to MK292: 500 meters (1640 ft.)
Sensor with PWM output to MK292: 152.4 meters (500 ft.)
MK292 to PLC: 25 meters (82 ft.)
Specifications are subject to change without notice. Consult MTS for verification of specifications critical to your application.
NOTE (Zero Points):
Before ordering an MK292 with a Temposonics LA
or LP sensor, consult an MTS Sensors Division
Applications Engineer for details regarding the
positioning of the sensor’s ZERO point.
4
3. System Components
3.1 MK292-Compatible Temposonics Position Sensors
To interface with the MK292, a start/stop or pulse-width modulated output (see figure
3.1) is required from the Temposonics position sensor. The MK292 will convert these
signals into a parallel BCD, Gray Code, or binary output.
COMPATIBLE SENSORS
3.1.1. Temposonics Position Sensor with Start/Stop Output
Temposonics L Series and LP position sensors provide a direct RS422 compatible
start/stop output. Temposonics II position sensors require an RS422 Personality
Module (RPM), installed in the sensor head, to produce a start/stop output.
3.1.2. Temposonics Position Sensor with Pulse-Width Modulated (PWM) Output
Temposonics L Series position sensors provide a direct pulse-width modulated output.
Temposonics II position sensors require a Digital Personality Module (DPM) to generate a pulse-width modulated output. The DPM is installed in the head of the sensor's
electronics enclosure.
When using a Temposonics sensor with a PWM output, "external interrogation" is
required to interface with the MK292. External interrogation is an option selected at
the time of order and is pre-set at the factory.
3.1.3. Temposonics Position Sensor with Synchronous Operation (External
Interrogating)
In synchronous operation, an interrogation pulse is supplied to the position sensor
from the MK292 module. After supplying the interrogation pulse, the MK292 waits for
the sensor's return pulse, then ends the cycle. The time between the launching of the
interrogation pulse and the receipt of the return pulse is proportional to the distance
between the null or zero position and the movable magnet.
Figure 3-1
Start/stop and PWM Outputs
RS422 Compatible
Start/Stop Output
To MK292 Module
Distance between Start and Stop pulse
is proportional to magnet position
Temposonics Position Sensor
To MK292 Module
Temposonics Position Sensor
Pulse Duration Output
Pulse duration is
proportional to position
StartStop
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