ASM NMG2 User manual

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NMG2
Quick Reference
NMG2 basic settings
There are two ways of opening the menu for basic settings:
1. NMG2 switched off: set the button [1] in the ADJUST position, keep the ZERO button [5] pressed ‒ the NMG2
will be switched on.
2. NMG2 switched on: set the button [1] in the ADJUST position, keep the ZERO button [5] pressed and set the
button [1] in the position TEST RUN, then release the ZERO button [5].
Both displays show the message FUNC/END. Turn the jog wheel [9] clockwise until the display shows FUNC. Select the
needed function and press the ZERO [5] button. The set function will be saved; then leave the display FUNC;END.
The following functions can be set:
Basic setting of the formula parameters gr, t2, F1, F2 (Calculation of the formula see page 16 in the NMG2
manual)
Number of measurements in automatic mode n
Selection of the measurement type Fcod (Bi-dir: bidirectional standard measurement mode for measurements
on presses etc.; Uni-dir: unidirectional measurement mode for continuous movements (e.g. conveyors, rotary
tables); AUto rES: like Uni-dir, but the ZERO button [5] must be pressed for a new measurement; ES24 for
measurements on systems with emergency stop or 2-hand control using the switch NMG2-KABEL-ES24V).
While using rst set up method, i.e. when NMG2 is switched off, the following parameters will also be available:
Realtime clock: day and daytime ddtt: day d, month dd, year ddd, hour tt und minute t
Language LnCo (for printer and PC interface): 1, German, 2 English (mm), 3 English (mm and inch)
Standstill velocity (from 1 up to 10 mm/s): Stop
Input of a Protocol ID (machine number)
In the ADJUST mode the user can input a freely selectable 8-digit protocol ID. This protocol ID appears in the printout and
in the RS-232 transmission protocol if not zero.
Procedure
1. Press the ZERO [5] button in the ADJUST mode.
2. At one display [17,18] three LEDs light up.
3. This display can be adjusted with the jog wheel [9].
4. Press ZERO [5] again and hold it, now the second display can be adjusted.
5. The upper display [17] shows the rst 4 characters and the lower display [18] the last 4 characters of the ID.
Now the protocol ID appears in the printout.

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NMG2
Quick Reference
Stop-Time Measurement
1. Congurationofthemachine
Press the [1] button, “ADJUST” active
2. Set the Stop Contact or the Acutator (Aktor)
Button [2] released: “RELEASE” active; the safety circuit of the machine is closed and will be interrupted at the
Start Position (see 8).
Button [2] pressed: “OPERATE” active; the safety circuit of the machine is open and will be closed at the Start
Position (see 8).
3. Select the measuring direction
Button [3] pressed: downward measurement, “DOWN” active, pulling in the measuring cable corresponds with
the DOWN direction and will cause negative counting.
Button [3] released: upward measurement, “UP” active, pulling out the measuring cable corresponds with the
UP direction and will cause positive counting.
4. Set the printer
Button [4] pressed: “PRINT ON”, printer activated; Button [4] released: printer deactivated
5. Set the machine to ZERO
Arrange the machine in the upper or lower dead center and set to zero using the button [5] “ZERO.
6. Activate “Stop-Time measurement” mode
Button [6] released: “STOP TIME” active
7. Set Single/multiple measurement
Button [7] pressed: “Automatic measurement” mode, “MULTIPLE” active
Button [7] released: “SINGLESHOT.” mode active
8. Select the Start Position of the measurement
Adjust the “START POSITION” (lower display) with the jog wheel [9], this is usually the half of the whole
movement.
Button [3] pressed: negative value; Button [3] released: positive value
9. Prepare the machine for the measurement
Button [1] released, Mode “TEST RUN” is active, 4 bars appear on the display.
10. Let the machine perform the complete cycle (e.g. with the 2-hand control).
11. As soon as the moving part of the machine passes the determined stop position the stop contact will cause the
stop of the machine. After the NMG2 has detected the complete standstill of the machine, it will display the
parameters Stop Time and Stop Distance in the upper resp. lower display. The printout starts, if selected.
In the automatic measuring mode, any number of consecutive measurements can be carried out. The safety distance
measurement will be determined only in this measuring mode.
Velocity Measurement
Steps 1 to 5: proceed as in the case of Stop-Time measuring
6. Activate velocity measurement
Button [6] pressed: “VELOCITY” active
7. Set the parameters for the velocity measurement
Button [8] is always released during the velocity measurement, “SINGLESHOT.” active
Adjust the “START POSITION” (start of measurement) with the jog wheel [9]. The recommended value is
+2 mm for upward movement and -2 mm for downward movement.
8. Activate the measuring mode
Now release the button [1], “TEST RUN” is activated, 2 bars appear on the display, NMG2 is ready for the
measurement.
9. Let the machine perform a complete cycle
10. Read the measurement value
After the machine has stopped, press and release the button ZERO [5] to obtain the measurement values. The
max. velocity will be shown on the lower display “MAX. VELOCITY” [18] and the corresponding position will
appear on the upper display “POSITION” [17].
The printout shows the maximum speed between the start position and the complete standstill of the machine. The actual
speed in the start position also appears on the printout, so that the speed at each point of the stroke can be determined by
adjusting the start position.