Mobile Equipment and Stationary Processing
Systems demand absolute accuracy and
reliability in linear position feedback . . .
Regardless.
Innovation, proprietary technology and decades of
experience were the key to the development of our 953
VMAX Linear Displacement Transducer.
We know the manufacturing challenges of today are
extreme, so we designed and built a sensor to meet and
exceed these demands, regardless of the application or
environment.
Introducing the 953 VMAX LDT features:
• High Vibration Resistance to 30 Gs (lab tested)
• High Shock Resistance to 1000 Gs (lab tested)
• Wide Input Power Range of 7 to 30 VDC
(no need to specify different models)
• High Accuracy with High Resolution
• Applications Include All Mobile/Stationary Equipment, or
Both with the Same Sensor
• Sensor Lengths up to 300”
• Durability and Reliability Exceeds Competitive Offerings
• Tri-Color Diagnostic LED Indicator
• Gives Quick Indication on the Status of the LDT
• Very Low Power Consumption, 1 Watt Typical, Allows
Direct Connection to Display and Control Interface
Modules
• Removable Cartridge for Hydraulic Applications
• Digital Output, Start/Stop, Variable Pulse (PWM),
Control Pulse
• SSI (Synchronous Serial Interface), 24, 25 or 26 Bit,
Binary or Gray Code, Position Update
• Analog Output, 0-10 VDC, +/-10 VDC, 0-5 VDC,
+/-5 VDC, 4-20mA
• Contaminant Resistant
• IP68 Rated
• Optional Stainless Steel Cover and Connector
• Multi-Magnet Option (Digital Start/Stop only)
953A/D/SSI VMAX™ LDT
Applications Include
Absolute linear position feedback for equipment and
process automation in extreme applications.
Process Automation
• Steel Mills, Primary and Secondary Metals Processing
that includes Stamping, Roll Forming and Die-Casting
• Hydraulic & Pneumatic Cylinders
• Adaptive Housing Options to Withstand Extreme
Temperatures and Contaminants
(Gemco 950MD units)
Mobile Equipment
• Lumber and Forest Products Processing
• Refuse Collection, Vehicles, Recycling and
Compaction
• Off Road
953
Removable
Cartridge
Stationary Machines
• Sawmill, Plastic, Rubber, Injection Molding, Extrusion
Equipment, Material Handling, Nonwoven, Dancers
and Accumulators
953SSI
Connector
Interface
953D
Connector
Interface
953A
Connector
Interface
Sensor Housing
and Mounting
Hex
Displacement
Dead Band
Null Zone
Enclosure Rating
953SSI
Resolution
953D
Resolution
953A
Resolution
Internal
Output
6 Pin 12mm Euro micro,
Integral cable ass'y, 7 Pin or 8 Pin DIN
6 Pin 12mm Euro micro,
Integral cable ass'y, 6 Pin or 8 Pin DIN
5 Pin 12mm Euro micro,
Integral cable ass'y, 6 Pin or 8 Pin DIN
Body length 3.2”, hex base 1 3/4” dia., 3/4”x16x1”
thread. Aluminum housing standard, stainless
steel optional.
1” to 300"
2.50" (63.5 mm) standard
2.00" (50.8 mm) standard
IP68, IEC 600529
English or Metric Units
Metric: 1, 5, 10, 20 micron (5 micron standard)
English: .00005", .0001", .0005", .001"
Consult Factory for Others.
Controller Dependant
0.00006”
16-Bit
*One watt typical at 1ms interrogation time with no recirculations. Faster interrogation times and/or recirculations increase power consumption.
953A/D/SSI VMAX™ LDT
Specifi cations
Shock
Vibration
953SSI Update Time
953D Update Time
953A Update Time
Guide Tube Pressure
Approvals
Input Voltage
Current Draw
953A Zero & Span
Adjustability
953D Repeatability
953A Repeatability
953SSI Repeatability
953SSI Measured
Variables
NOTE:
Speci cations subject to change and are based on a typical 48” stroke.
1000 Gs (lab tested)
IEC 60068-2-27
30 Gs (lab tested)
IEC 60068-2-6
Measuring
Length 300 750 1000 2000 5000mm
Measurements/
sec.
Controller Dependant
< 2mS Typical
5,000 psi continuous
(10,000 psi spike)
CE (EMC)
7 to 30 VDC
1 watt typical*, 40mA at 24 VDC typical
Factory set at Null & Dead Band locations
Field re-settable at any location within active stroke
Equal to Resolution of Controller
Equal to Resolution
Equal to Output Resolution
Single Magnet Displacement, Consult Factory for
Velocity or Differential Operation
3.7k 3.0k 2.3k 1.2k 0.5k
953SSI Output
953D Output
953A Output
Voltage
Current
953A Current Output
953A Voltage Output
Hysteresis
Non-linearity
Storage Temperature
Operating
Temperature
Head
Guide Tube
Diagnostics
24, 25 or 26 Bit, Binary or Gray Code
(optional parity and error bit),
Position Update
RS = RS422 Start/Stop Pulse
VP = RS422 Variable Pulse (PWM),
Internal/External Interrogation
CP = RS422 Control Pulse
TP = TTL Start/Stop Pulse
0-10 VDC, +/-10 VDC, 0-5 VDC, +/-5 VDC
4-20mA
Max Load Resistance: 500 Ohms
Minimum Load Resistance: 2K Ohm
Output Current: Guaranteed 5mA minimum
Analog Ripple: 1 mV maximum
0.001”
< 0.01% or +/- 0.005”, whichever is greater,
(+/- 0.002 Typical)
-40° to 221° F
(-40° to 105° C)
-40° to 185° F ( -40° to 85° C)
-40° to 221° F (-40° to 105° C)
ri-Color LED beside connector/cable exit,
T
See 'LED Output Summary Table' on page 39
SSI (Synchronous Serial Interface)
Displacement value is encoded into a 24, 25 or 26 Bit
format and transmitted at high speeds. Synchronization
in a closed loop system is made easy. A clock pulse train
953
from a controller is used to gate out sensor data: one bit
of position data is transmitted to the controller per one
clock pulse received by the sensor. The absolute position
data is continually updated by the sensor and converted
by the shift register into serial information. The sensors
fulfi ll all requirements to the SSI standard for absolute
encoders.
S Connector Style
5 or 6 Pin Micro, 12mm Euro
M Connector Style
6 Pin DIN, Fits MTS D60
7 Pin DIN, Fits MTS D70 (for SSI only)
Stainless Steel
Cover and Connector
8 Pin DIN, Fits Balluff S32
B Connector Style
C Connector Style
Integral Cable Assembly
Analog Part Numbering
953A/D/SSI VMAX™ LDT
953A 0120V0 X
V0
V1
V2
V3
V4
V5
V6
V7
C4
C2
Output
0 to 10 VDC
10 to 0 VDC
-10 to 10 VDC
10 to -10 VDC
0 to 5 VDC
5 to 0 VDC
-5 to 5 VDC
5 to -5 VDC
4 to 20mA
20 to 4mA
X
Standard 2 inches.
N_
Insert non-standard Null Zone over 2 inches.
Stroke Length
Insert stroke length to 0.1 inch. Enter as a four-place
number. Example: A 12.0” stroke enters as 0120.
OR
Insert stroke in millimeters to 1mm. Enter as a
four-place number. Example: 305mm stroke entered
as 0305M. Metric length includes metric mounting,
M18x1.5.
Null Zone
Dead Band
X
Standard 2.5 inches.
Insert non-standard Dead
D_
Band over 2.5 inches.
S
C_
M
B
SXX
Connector Option
Standard 5 Pin, 12mm Euro
Integral Cable Assembly. Insert length
in feet. Example: C6 = 6 foot cable.
6 Pin DIN, MTS Style D60
8 Pin DIN, Balluff S32
Options
X
None
Stainless Steel cover and
connector. Only available
S
with connector options S
and C.
SSI Part Numbering
953S 0120 1
Stroke Length
1" to 300". Insert stroke length to 0.1 inch.
Enter as a four-place number. Example: A 12.0”
stroke enters as 0120.
OR
Insert stroke in millimeters to 1mm. Enter as
a four-place number. Example: 305mm stroke
entered as 0305. Metric length includes metric
mounting, M18x1.5.
X
N_
VP
Units
Blank
Inches
Metric Base
M
and Threads
Null Zone
Standard 2 inches.
Insert non-standard Null Zone
over 2 inches.
Dead Band
X
Standard
2.5 inches
Insert non-standard Dead Band
D_
over 2.5 inches.
Connector Option
S
Standard 6 Pin, 12mm Euro
Integral Cable Assembly. Insert length in
C_
feet. Example: C6 = 6 foot cable.
M
7 Pin DIN, MTS Style D70
B
8 Pin DIN, Balluff S32
.
SXX
Data Length
1
2
3
24 Bits
25 Bits
26 Bits
Data Format
Position Update
S
A
F
R
V
B
S
B
Binary
G
Gray
Synchronous
Asynchronous
Direction
Measures Direction Forward
Measures Direction Reverse
Velocity
Resolution
1
2
3
4
5
6
7
8
9
A
B
F
.005mm
.01mm
.05mm
.1mm
.02mm
.002mm
.001mm
.00005"
.0001"
.0005"
.001"
1
X
A
S
X
Options
None
Alarm Bit 25, Parity 26
Stainless Steel cover and
connector. Only available with
connector options S and C.
953
Digital, CP and RS Part Numbering
953A/D/SSI VMAX™ LDT
953D 0120RS
Output
CP
Control Pulse
RS
RS-422 Start/Stop Pulse
Stroke Length
Insert stroke length to 0.1 inch. Enter as a four-place number.
Example: A 12.0” stroke enters as 0120.
OR
Insert stroke in millimeters to 1mm. Enter as a four-place number.
Example: 305mm stroke entered as 0305M. Metric length includes
metric mounting, M18x1.5.
Digital, VP (PWM) Part Numbering
953D 0120VP I
Output
VP
Variable Pulse
953
Insert stroke length to 0.1 inch. Enter as a
four-place number. Example: A 12.0” stroke
enters as 0120.
OR
Insert stroke in millimeters to 1mm. Enter as
a four-place number. Example: 305mm stroke
entered as 0305M. Metric length includes
metric mounting, M18x1.5.
Stroke Length
X
N_
Dead Band
X
Standard
2.5 inches
Insert non-standard Dead Band
D_
over 2.5 inches.
Connector Option
S
Standard 6 Pin, 12mm Euro
Integral Cable Assembly. Insert length
C_
in feet. Example: C6 = 6 foot cable.
M
6 Pin DIN, MTS Style D60
B
8 Pin DIN, Balluff S32
Dead Band
X
Standard
2.5 inches.
Insert non-standard
D_
Dead Band over 2.5
inches.
Null Zone
Standard 2 inches.
Insert non-standard Null
Zone over 2 inches.
Connector Option
S
Standard 6 Pin, 12mm Euro
Integral Cable Assembly. Insert
C_
length in feet.
Example: C6 = 6 foot cable.
M
6 Pin DIN, MTS Style D60
B
8 Pin DIN, Balluff S32
SXX
.
SXX
Options
X
None
Stainless Steel cover and
connector. Only available
S
with connector options S
and C.
001
X
S
X
X
Options
None
Stainless Steel cover and
connector. Only available
with connector options S
and C.
Null Zone
X
Standard 2 inches.
N_
Insert non-standard Null Zone over 2 inches.
NOTE: Metric LDTs cannot be used with standard 950MD housings. Consult
factory.
Interrogation Mode
I
Internal Interrogation
E
External Interrogation
Number of
Recirculations
001
001 (Standard) to 255
953A/D/SSI VMAX™ LDT
953 LED Output Summary
Output 953A 953D 953SSI
Flashing Red Flash memory corrupt Flash memory corrupt Flash memory corrupt
Flashing Red/Green EE memory corrupt EE memory corrupt EE memory corrupt
Flashing Green N/A N/A N/A
Flashing Yellow Communication/programming mode Communication/programming mode Communication/programming mode
Fast Flashing Yellow Programming input held asserted Interrogation input held asserted Clock input held asserted
Solid Red No magnet signal detected No magnet signal detected No magnet signal detected
Green/Red Blip (1s to 0.12s) N/A Max Gain but signal detected and within range Max Gain but signal detected and within range
Solid Green Magnet signal detected and within the
programmed range
Solid Yellow Magnet signal detected outside of the
programmed range
Yellow/Red Blip (1s to 0.12s) N/A N/A SSI clock pulses do not match
Green/Yellow Blip (1s to 0.12s) N/A N/A LDT data not synchronous with controller
Normal probe operation; magnet signal and
interrogation pulse detected
No external interrogation pulse detected No SSI clock pulses detected
Normal probe operation; magnet signal
and SSI clock operational
LDT SSI data length
(if LDT is programmed for synchronous mode)
953
953A/D/SSI VMAX™ LDT
Magnets
Part Number Description
SD0400800 Standard Four Hole Magnet
SD0480900 Standard Four Hole Magnet, Stainless Steel
SD0403900 Aluminum Split Magnet
SD0411201 Large Split Magnet, Stainless Steel
SD0411200 Large Split Magnet, Standard
SD0410300 Cylinder Magnet, Standard
SD0410301 Cylinder Magnet, Te on Coated
M0750500 Non-Ferrous Spacer for Split Magnet
M0822400 Non-Ferrous Spacer for Four Hole Magnet
S
S
N
N
N
N
S
1.29
.53
.331 TYP.
S
.662 TYP.
.187
4 PLACES
.31
953A Accessories
Part Number Description Use With Connector
949011L6 6 Foot, 5 Pin, Straight, 12mm Euro Cable S
949011L12 12 Foot, 5 Pin, Straight, 12mm Euro Cable S
949012L6 6 Foot, 5 Pin, Right Angle, 12mm Euro Cable S
949012L12 12 Foot, 5 Pin, Right Angle, 12mm Euro Cable S
SD0553200LXX 6 Pin DIN M
SD0553300LXX 8 Pin DIN Voltage B
SD0553400LXX 8 Pin DIN Current B
SD0400800 Standard 4 Hole Magnet All
Consult factory for complete accessory offerings. XX = Length in Feet.
953D/953SSI Accessories
Part Number Description Use With Connector
949029L6 6 Foot, 6 Pin, Straight, 12mm Euro Cable S
S
949029L12 12 Foot, 6 Pin, Straight, 12mm Euro Cable S
949030L6 6 Foot, 6 Pin, Right Angle, 12mm Euro Cable S
949030L12 12 Foot, 6 Pin, Right Angle, 12mm Euro Cable S
SD0554500LXX 6 Pin DIN (953D) M
SD0558500LXX 7 Pin DIN (953SSI) M
SD0554600LXX 8 Pin DIN B
SD0400800 Standard 4 Hole Magnet All
Consult factory for complete accessory offerings. XX = Length in Feet.
953
Standard 4 Hole Magnet
Standard P/N: SD0400800
Stainless Steel P/N: SD0480900
SSI Cable Length Limits
Baud Rate Max. Cable or Bus Length
1 MBd 10 ft. 3 m
400 kBd 160 ft. 50 m
300 kBd 320 ft. 100 m
200 kBd 650 ft. 200 m
100 kBd 1300 ft. 400 m
NOTE: The maximum cable length recommendation is 10 meters or 33 feet. Longer cables are available, but
extra care must be taken while handling and installing.
Loading...