Mode Selection - MTS Systems Temposonics III Programming Manual

SECTION A -

MODE SELECTION

l.) Move the magnet to the end of the active stroke (see figure 2).
2.) Connect a voltmeter (for voltage outputs) or an ammeter (for current
outputs) across output 1.
Temposonics III sensors are supplied with either Vdc or mA
output from the factory and cannot be reprogrammed in
the field.
3.) Apply power to the sensor
4.) Using a jeweler's screwdriver, press and hold pushbutton 1 for approxi-
mately 2 seconds (PB1, see Fig. 1 for pushbutton locations) until the
output goes to approximately 5.5 volts (11.5 mA). This indicates the
Single Magnet Programming Mode. Release PB1.
C A U T I O N :
Pushbuttons are delicate. Excessive force is not required,
damage may result.
PB2
Remove screws to access
zero and span pushbuttons.
Null (Zero)
Position
Null
50.8 mm
(2.0 in.)
Stroke-dependent Dead Zones (Temposonics RH)
Stroke Length
1 - 4500 mm (1 - 177 in.)
4501 - 7625 mm (177.1 - 300 in.) 66 mm (2.6 in)
5.) Press and release PB1 to scroll through the two available field pro-
gramming modes:
(The voltage and current values indicated
below are approximate values and may vary slightly.)
• Mode #1 (Single Magnet Mode): approximately 5.5 V (11.5 mA)
• Mode #2 (Dual Magnet Mode): approximately 3.0 V (6.8 mA)
• Mode #3 [8.0 V (15.5 mA)] is for factory use - DO NOT USE
6.) Press and release PB2 to confirm mode. The output will go to approxi-
mately 10 V (20 mA).
N O T E :
Connector
end of sensor
PB1
Figure 1
End of Stroke (Span)
Position
Active Stroke Dead
Length Zone
Outputs:
0 to 10 V
10 to 0 V
4 to 20 mA
20 to 4 mA
0 to 20 mA
20 to 0 mA
Dead Zone
63.5 mm (2.5 in.)
Figure 2
SECTION B -
MODE #1: ZERO & SPAN ADJUSTMENT FOR
SINGLE MAGNET (POSITION)
1.) Press and release PB1 to select either zero or full scale. Repeatedly
pressing PB1 will alternate the output between approximately 10 V and
0 volt (20 mA and 2.2 mA).
2.) Press and release PB2 to confirm zero or scale. The output will go to
either zero (0 V or 4 mA) or full scale (10 V or 20 mA), depending on the
selection in Step 1.
3.) Use PB1 or PB2 to adjust output to desired setting. DO NOT adjust out-
put below 0.050 V or 0.050 mA.
Zero and Span outputs can be adjusted. Zero should be pro-
grammed between 0.050 and 0.060 Vdc (DO NOT adjust
below 0.050 Vdc or 0.050 mA). Span should be programmed
at ± 0.020 Vdc of the desired level.
Pressing PB1 will increase the reading and pressing PB2
will decrease the reading. Pressing and holding the PBs
for several seconds may cause the system to overshoot
the desired set point voltage. Jogging the PB may be nec-
essary to obtain the desired setting.
4.) To enter the next set point, simply move the magnet towards the head
of the sensor (i.e., the start of the active range of the sensor). The out-
put will jump to the other end of the output range (i.e., if 10 V or 20 mA
was selected in Step 3, the output will go to approximately 0 V or 4 mA).
5.) After the magnet is moved to the desired starting position, use PB1 or
PB2 to adjust the starting point to the desired output value.
6.) To confirm the starting set point, simply move the magnet towards the
first set point. Moving the magnet automatically exits programming
and puts the sensor in operating mode.
Single magnet displacement programming is complete.
N O T E S :