Phares Electric T6 Tachometer User manual

User Manual
T6 Tachometer
P.O. Box 67251
St. Petersburg, Florida 33736
Telephone: [phone]

Table of Contents
Overview ....................................................................................... 1
Description .................................................................................... 1
Wiring ........................................................................................... 1
T6 Tachometer Front ................................................................... 2
Set or Change Parameters ........................................................... 3
Exiting the Parameters.................................................................. 4
T6 Tachometer Parameters ....................................................... 5-7
Troubleshooting ....................................................................... 8-12
Replacing Fuses .................................................................... 13-15
Specifications ......................................................................... 16-17
Warranty and Disclaimer............................................................. 18
Cleaning Instructions................................................................... 19
Contact Information..................................................................... 19

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T6 Tachometer – User Manual
Overview
The T6 Tachometer is a panel mount unit which monitors over speed, under
speed, zero speed and at-speed conditions, utilizing a 4-digit display, 0-10V and
4-20mA output signals and three independent isolated relay outputs for speed
condition status.
The T6 Tachometer helps prevent equipment damage and material spoilage via
prompt alert for stalled (zero speed) or under speed condition. It is particularly
useful for monitoring under speed conditions as this often indicates an
unexpected increase in load which may indicate that an unwanted stoppage is
about to occur.
Description
The T6 Tachometer is an actual tachometer, not a rate meter posing as one.
The T6 Tachometer uses frequency input from a variety of sensors to
determine the presence of motion or the lack thereof.
Speed is measured in RPM and is monitored using the following output options:
•Visual speed indication via 4-digit LED display.
•0-10V and 4-20mA analog scaled output signals.
•Three Form C relay outputs.
The T6 Tachometer has 3 SPDT Relays with independent set points. When
motion reaches set point, the relay outputs change state. They remain in this
state until either under speed or zero speed condition occurs.
The T6 Tachometer features universal sensor input: 24Vdc, NPN or PNP, 2 or 3
wire sensor. Sensor types compatible with the T6 Tachometer:
•Hall Effect
•Photoeye
•Inductive
•Capacitive
•Encoder
Wiring:
For connecting power to the (T6-A) AC unit, use minimum 18AWG wire,
connect Line lead to terminal marked “L” and connect Neutral lead to terminal
marked “N” and the protective earthing (grounding) lead to the terminal
marked . A switch or circuit breaker must be included in the installation,
it must be suitably located and easily reached, it must be marked as the
disconnecting device for the equipment.

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T6 Tachometer – User Manual
Figure 1. T6 Tachometer Front
The front of the T6 Tachometer complies with NEMA 4 standards and is
designed and built for use in wash down areas.
There are four LED’s on the face of the T6 Tachometer:
•R1 – Relay 1, when illuminated, Relay 1 is engaged.
•R2 - Relay 2, when illuminated, Relay 2 is engaged.
•R3 - Relay 3, when illuminated, Relay 3 is engaged.
•S – Sensor, when illuminated, Sensor is detecting target.
There are four keys on the face of the T6 Tachometer located below the 4 digit
display:
•Arrow Up – Increase Parameter Value
•Arrow Down – Decrease Parameter Value
•P – Program, press to advance to the next Parameter
•S – Set, press to access Parameter Value

NOTE: There is a 4 second delay upon power up.

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T6 Tachometer – User Manual
Set or Change Parameters
The T6 Tachometer Parameters can be set while reading motion. Therefore it
is recommended that the parameters are set when motion at the point of
measure is stopped and the T6 Tachometer reads ‘0’.

Press ‘P’ to enter Program mode.
-The display will read C Od E . The correct code must be entered to
allow access to the parameters.
To unlock the parameters press ‘S’ to change the value.
-Use the arrow up key until the display reads 10 and Press ‘P’. (10
is the factory default unlock code)
-If the correct code is entered, the display will read ‘PPR’ (Pulses
per Revolution). This is the first parameter. For a complete list of
the parameters, please see “T6 Tachometer Parameters” below.

Press ‘P’ to step through each Parameter.
Press ‘S’ to enable the value to be changed.
Press either the Up or Down key to change the value.
When the desired value is displayed, press ‘P’ to set and advance to the next
parameter.

NOTE: Some Parameter changes take effect in real time
during adjustment, while others take effect when the
Parameter is Set and advanced, not upon Parameter access
exit or when power is cycled.
NOTE: Holding the up or down key automatically repeats and
accelerates the displayed values. When held for 4 seconds
acceleration is x10 and 7 seconds is x100.
NOTE: If an incorrect code is entered, the parameter access
function is terminated.

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T6 Tachometer – User Manual
Exiting the Parameters
Exiting the parameters occurs in two ways:
1) When all of the parameters have been stepped through, the T6
Tachometer exits and displays the current speed which should
be ‘0’.
2) To exit the Parameters at any time, press ‘P’ to advance to the
next parameter, then press both the up and down arrows
simultaneously.

NOTE: Parameters are automatically saved to FLASH memory
and are power down retentive.

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T6 Tachometer – User Manual
T6 Tachometer Parameters
C Od E – Parameter code to allow entry to changing parameters. Factory set at
10
PPr – Pulses per Revolution (1-500).
AuE – Number of samples to Average (0-100). Averaging stabilizes the read
out when speed at the point of measure isn’t steady.
dPn – Number of decimal places to display (0-3). Changes where the decimal
point is displayed.
In addition to changing where the decimal point is displayed, this parameter
changes the relay set point, changes the analog output signal, the min/max
setting resolution and changes the sensitivity.
0 – 9.999, 0-99.99, 0-999.0, 0-9999
Speed Range Parameter: The LO and HI Parameters set the minimum and
maximum displayed ranges, alarm ranges and analog output ranges.
LO– Minimum speed. When speed at the point of measure drops below this
parameter value, the display will read ‘0’. This allows quicker response time
when using a single digit PPR.
Hi - Max Speed. When speed at the point of measure rises above this
parameter value, the display will read ‘9999’ which indicates speed is out of
range.

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T6 Tachometer – User Manual
4-20mA Output Signal Range: The i 4 and i20 Parameters set the 4-20mA
Output Signal span across the speed range selected above. The 4-20mA
current loop can be powered via the T6 Tachometer or with a 24 Vdc external
power supply.
i4– 4mA Output Signal. Can be set anywhere between LO and HI value, but
must be lower than 20mA parameter value.
i 20 – 20mA Output Signal. Can be set anywhere between LO and HI value,
but must be higher than 4mA parameter value.
i LPr – Current loop – 4-20mA Loop powered externally (0)
4-20mA Loop powered via T6 Tachometer (1)
0- 10 Volt Output Range: The V0 and U1 0 Parameters set the 0-10 Volt
Output Signal span across the speed range selected above.
U0 – 0 volt output signal. Can be set anywhere between LO and HI value,
but must be lower than 10 volt parameter.
U1 0 – 10 volt output signal. Can be set anywhere between LO and HI value,
but must be higher than 0 volt parameter.
WARNING:
Make sure the current loop is not externally powered before
setting the i LPr parameter to internal power. If internal
power is selected (i LPr ‘1’) and external power is present on
the current loop, this will result in a short circuit condition
which could result in permanent damage to the T6
Tachometer motherboard.

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T6 Tachometer – User Manual
Relay On and Relay Off Parameters: The Relay On and Relay Off parameters
can be set to engage and disengage each relay at a specific speed. A gap
between the Relay On and Relay Off Parameters, or deadband, is
recommended. For example, using a speed range of 0-1,000 RPM, if the Relay
On parameter is 170 RPM, the Relay Off parameter should be 150 RPM. This
gap or deadband prevents relay chatter as speed drops to the Relay Off
setting. Generally, a 10 percent deadband is recommended, although it may
not be suitable for all speed monitoring applications. For example, it may
need to be widened for higher speed applications and narrowed for slower
speed applications.
R1on – Relay 1 on set point. Can be set anywhere between LO and HI
value, but must be higher than Relay 1 Off parameter.
R1oF – Relay 1 off set point. Can be set anywhere between LO and HI
value, but must be lower than Relay 1 On parameter.
R2on – Relay 2 on set point. Can be set anywhere between LO and HI
value, but must be higher than Relay 2 Off parameter.
R2oF – Relay 2 off set point. Can be set anywhere between LO and HI
value, but must be lower than Relay 2 On parameter.
R3on – Relay 3 on set point. Can be set anywhere between LO and HI
value, but must be higher than Relay 3 Off parameter.
R3oF – Relay 3 off set point. Can be set anywhere between LO and HI
value, but must be lower than Relay 3 On parameter.
Br t – Display brightness 0- 10
unL – Allows the unlock code to be changed.

NOTE: When changing Parameter access code, if the new
code is lost, enter 99 to reset to factory default. Entering 99
resets all parameters to factory default.