Usage:
Auto Programmer Connections And Controls
1. TURN ON SELECT switch: Use for selecting whether the magnetic or photo input signal will be displayed after the power is turned on to the multitach.
2. P/REV SELECT-MAGNETIC: Rotary switches used to store P/REV (pulses per revolution) number for magnetic operation. Switch 2A is used for setting the hundreds digit or for the number 000.5. Switch 2B is used for setting the tens digit. Switch 2C is used for setting the units digit of the P/REV number.
3. P/REV SELECT-PHOTO: Rotary switches used to store P/REV number for photo operation. Switch 3A is used for setting the hundreds digit or the 000.5 P/REV number. Switch 3B is for the tens digit and switch 3C is for the units digit.
4. FLEXIBLE CABLE: Used for making connection to the printed circuit board of multitach.
5. CONNECTOR PLUG: Plugs into the 6V4865 Auto Programmer Connector on the multitach.
Specifications
POWER: Power is automatically supplied to the auto programmer by the multitach. The auto programmer requires approximately 4 volts DC at 0.2 ma when not programming and 0.7 ma when programming.
ACCURACY: The auto programmer does not affect the accuracy or sensitivity of the multitach. All multitach specifications remain unchanged.
CALIBRATION: None required.
P/REV RANGE: Adjustable from 1 to 256 in increments of one. The number 000.5 can also be used for programming one pulse for every two revolutions.
PROGRAMMING TIME: Maximum of one second.
RECOVERY TIME: For accurate auto programming when the unit is turned on, power to the multitach must be off for at least one second before turning the unit back on.
OPERATING TEMPERATURE RANGE: 0°F to 140°F (-17°C to +60°C)
STORAGE TEMPERATURE RANGE: -40°F to +212°F (-40°C to +100°C)
SIZE: 7.5 inches (190 mm) X 4.4 inches (112 mm) X 0.87 inches (22 mm)
WEIGHT: 6V4190 Auto Programmer - 10 ounces (.28 kg) 6V2100 Multitach (including 6V4190) - 1 pound 6 ounces (.62 kg)
Installation Of 6V4190 Auto Programmer
(1) Check to be sure the multitach is operating correctly; see Special Instruction Form SEHS7807, "USING THE 6V2100 MULTITACH AND 6V3121 MULTITACH GROUP". Perform all tests shown in the section "Checking The Operation Of The Multitach", starting on page 10. If the multitach tests are satisfactory, proceed with the installation of the auto programmer.
(2) Use a screwdriver to remove six screws (1) from rear cover of multitach. Pull straight out to remove rear cover (2). Find blue rectangular connector (3) at the bottom of printed circuit board (4). If the multitach is already equipped with a 6V4865 Connector (5), go to step 4. If the multitach does not have a connector, go to step 3.
(3) Install the 6V4865 Connector using the following procedure:
a) Put the multitach face down on a soft surface to prevent damage to the face. Use a small screwdriver to remove six screws (6) from the outer edge of the printed circuit board. Do not remove two screws (7).
b) Hold black connector panel (8) with one hand and upright cylindrical capacitor (9) with the other hand. Carefully lift printed circuit board (4) out of the plastic cover. Do not put excessive strain on ribbon cable (10) which is still attached.
c) Use two small screwdrivers and your thumbs as shown to remove the blue rectangular connector by gently pulling it toward the end of the circuit board and off the pins.
d) To install 6V4865 Connector (5), use the set of contacts on the connector which are nearest the edge. Align the holes, on the side of the connector which does not have the part number, with the pins on the printed circuit board connector. Push the flared end of the contacts all the way onto the pins until they contact the plastic insulator. Use care not to bend any of the pins or contacts. When installed, the connector should be positioned as shown above.
e) Put the front cover in position next to the printed circuit board as shown. Connect rectangular connector (11), on the end of ribbon cable (10), to the printed circuit board. Push the connector as far as it will go against connector (5) as shown.
f) Place the printed circuit board back into the front cover, making sure the board is correctly seated. If it is not seated, move the board around slightly until the clear plastic cover on the LCD display fits down into the front cover. Do not force the board into place. Install the six screws. Do not over-tighten the screws.
(4) With the rear cover removed and the multitach face down, put the 6V4190 Auto Programmer next to the multitach with the instruction label facing down and flexible cable (12) toward the end of the multitach with auto programmer connector (5). Align the pins on the end of cable (12) with the holes on the side of connector (5) with the part number. Carefully push the pins into connector (5) as shown. Being careful not to pull on cable (12), place the auto programmer in position on the multitach and install the six screws. Test the operation of the auto programmer as shown on the next page.
Checking The Operation Of The Auto Programmer Installed On The 6V2100 Multitach
(A) Turn On Select Check
(1) Move TURN ON SELECT switch (1) to the MAG position. Use a screwdriver to set P/REV SELECT-MAGNETIC rotary switches (2) to represent any whole number from 1 to 256. Set 0 on any P/REV switch that does not require a number for its position.
(2) Connect the clips of the multitach power cable to a DC (direct current) power source with a voltage between 11 and 40 volts, and a current capability of at least 0.3 amps. Either clip of the cable can be connected to either terminal of the power source. Turn on the power source before connecting the other end of the cable to the multitach.
(3) Watch the digital readout on the multitach while connecting the power cable connector to the 11 to 40 VDC connector on the multitach. The readout should flash digits several times and then display 0. The MAG INPUT light should be on. The NO INPUT SIGNAL light will also be on. The multitach is now in the R/MIN mode and ready to display a magnetic input signal R/MIN.
(4) Determine if the P/REV number the multitach has been automatically set to is the number desired. Do this by pressing the P/REV switch on the front panel. A number should now be flashing on the display. It should be the number set on the P/REV SELECT-MAGNETIC switches on the rear panel. This procedure can be tried for several different P/REV numbers if desired by removing the power, changing the number on the rotary switches and then turning on the power.
NOTE: Whenever the power cable is removed from the multitach, wait several seconds before reconnecting it, or the auto programmer may not program the multitach correctly.
(5) Disconnect the power cable from the multitach but do not turn off the power source. Put TURN ON SELECT switch (1) in the PH position. Set P/REV SELECT-PHOTO rotary switches (3) to represent any whole number from 1 to 256. Set 0 on any switch which does not require a number for its position.
(6) Watch the digital readout while connecting the power cable to the 11 to 40 VDC connector on the multitach. The readout should flash digits several times and then display 0. The PHOTO INPUT light and the NO INPUT SIGNAL light must be on. The multitach is now in the R/MIN mode and ready to measure the photo input signal.
(7) Press the P/REV switch on the front panel to determine if the P/REV number is correct. The number flashing on the digital display must be the same as the number set on the P/REV SELECT-PHOTO rotary switches. This procedure can be tried for several different P/REV numbers if desired by removing the power, changing the number on the rotary switches and then turning on the power.
(8) Check the 000.5 setting on both the MAG and PH inputs. The digital display should flash .5 when the P/REV touch switch is pressed on the front of the multitach after auto programming has taken place.
(B) Auto Programming Check
(1) Use a screwdriver to set the P/REV SELECT-MAGNETIC rotary switches to 020, and the P/REV SELECT-PHOTO rotary switches to 010. Supply power to the multitach. Disregard the digital reading.
(2) Obtain a 5P9698 Calibrator (1). Remove small adapter plug (2) from the front of the calibrator. Put plug (2) in the end of the calibrator cable. Connect plug (2) to the MAG IN connector on the multitach as shown. Make sure knob (3) is in the OFF position.
(3) Press PH switch (4) on the multitach. Wait until the display stops flashing and shows 0, then press MAG switch (5). The digital display should flash digits several times, then display 0. MAG INPUT light (6) and NO INPUT SIGNAL light (7) should be on.
(4) Press the P/REV switch on the multitach. The display should read 20, and be flashing. Press the R/MIN switch, and the display should read 0. Turn the knob on the calibrator to the 400 OUTPUT HZ position. Make sure the BATTERY indicator needle on the calibrator is in the white portion of the scale. The NO INPUT SIGNAL light on the multitach should go out, and the number 1200 ± 1 digit should appear on the digital readout of the multitach.
(5) Press the PH switch on the multitach. The digital display should flash digits several times, then display 0. PHOTO INPUT light (8) should be on, and also NO INPUT SIGNAL light (7). If the PHOTO INPUT light is already on, nothing will happen when the PH switch is pressed.
(6) Press the P/REV switch. The display should read 10, and be flashing on and off. Press the R/MIN switch; the display should read 0.
(7) Connect the 6V2198 Photo Pickup Extension Cable to the PHOTO IN connector of the multitach. Connect the other end of the cable to the 6V3136 Photo Pickup. Hold the light-emitting end of the photo pickup directly in front of a fluorescent light and watch for the NO INPUT SIGNAL light to go out. Hold the pickup in the position that keeps the NO INPUT SIGNAL light out by using the magnetic base supplied with the photo pickup.
(8) Observe the reading on the digital display. It should be one of the following values, depending on the alternating current used (50Hz or 60Hz). For 50Hz, the digital reading should be 600. For 60Hz, the digital reading should be 720. These readings should be within ± 1 digit of the number specified. However, this test is accurate only if the frequency of the AC power is correct.
(9) Press the MAG switch on the multitach. The digital display should flash digits several times, then display the number 1200. If the MAG INPUT light is on when the switch is pressed, nothing will change on the digital display.
(10) Press the PH switch on the multitach. The digital display should flash digits several times, then display the number 600 (50Hz) or 720 (60Hz), if the photo pickup is still properly aimed.
(11) This completes the check of the auto programmer. Other R/MIN values can be checked by changing the P/REV SELECT settings, or by changing the 5P9698 Calibrator setting. Refer to Special Instruction Form SEHS7807, "USING THE 6V2100 MULTITACH" to determine the values to expect. These values are shown in the section "Checking The Operation Of The Multitach" on page 10 of the instruction.
Using The Multitach With Auto Programmer
NOTE: Before attempting to use the 6V2100 Multitach with 6V4190 Auto Programmer, read the Special Instruction Form SEHS7807, "USING THE 6V2100 MULTITACH AND 6V3121 MULTITACH GROUP" to become familiar with the use of the multitach.
(1) Move TURN ON SELECT switch (1) to the input (MAG or PHOTO) that is desired to be used first after the power is turned on to the multitach.
(2) Determine the P/REV numbers to be used for the magnetic and photo operation. If necessary, refer to the Special Instruction to obtain these numbers. Set the P/REV SELECT-MAGNETIC rotary switches to the pulses per revolution number required for magnetic input operation. Set the P/REV SELECT-PHOTO rotary switches to the pulses per revolution number required for photo input operation. If a number is not required for any position, always turn that switch to 0 (except when 000.5 is used, then the position of the other two switches has no effect). Use only P/REV numbers from 1 to 256, or the number 000.5.
(3) Connect the power to the multitach as described in the Special Instruction. Power is then automatically supplied to the auto programmer.
| NOTICE |
|---|
Be sure to connect one clip of the power cable to the chassis and the other clip to the power source. |
(4) When power is supplied to the multitach, the auto programmer will switch the multitach to the input selected by the TURN ON SELECT switch, and program the multitach to the P/REV number set on the P/REV SELECT switches on the auto programmer. The multitach is then automatically placed in the R/MIN mode, ready to read revolutions per minute from the selected input.
(5) If power is momentarily removed from the multitach for any purpose, it must remain off for a minimum of one second so the auto programmer can correctly reprogram the multitach. This time delay is necessary to allow the auto programmer time to reset.
NOTE: Once power is supplied to the multitach, it is not necessary to change the TURN ON SELECT switch on the auto programmer in order to change inputs. See the following step.
(6) After supplying power to the multitach, it will read R/MIN directly from the input selected by the TURN ON SELECT switch. If R/MIN is to be read from the other input, all that is required is to press the MAG or PH touch switch on the front panel of the multitach. The multitach will then switch to the other input and automatically be programmed for the correct P/REV number as set on the rotary switches of the auto programmer. The auto programmer will reprogram the multitach only when the input changes, not when the same switch is pressed twice.
(7) The touch switches on the front panel can still be used to manually program the multitach after the auto programmer has been installed. The only difference will be in the MAG and PH switch operation. Whenever the input is changed by pressing either the MAG or PH switch, the auto programmer will take over the programming. When this happens, wait until the digital readout stops flashing; then press the touch switches required to manually set the P/REV, and read R/MIN.
Repair Of The 6V4190 Auto Programmer
If the auto programmer does not operate correctly, remove it from the multitach to determine if the problem is in the multitach or the auto programmer. See Special Instruction Form SEHS7807, "USING THE 6V2100 MULTITACH AND 6V3121 MULTITACH GROUP". Perform all the tests in the section "Checking The Operation Of The Multitach" starting on page 10. If the multitach checks satisfactory, the problem is in the auto programmer.
The 6V4190 Auto Programmer and 6V2100 Multitach can be returned to the manufacturer for service. The multitach on which the auto programmer is being used should also be sent along with the auto programmer when it is returned for repair. A letter should accompany the returned units, stating the problem and the date of purchase of the auto programmer and multitach from Caterpillar. Units less than one year old will be repaired under warranty (except for abuse). Cost of out-of-warranty repairs will be charged to the owner. Send the 6V4190 Auto Programmer, 6V2100 Multitach and 6V3121 Multitach Group for repairs to:
General Fabrication Corp.1100 Southwest 11th Ave.
Industrial Park
Forest Lake, MN 55025
Telephone No. (612) 464-5110