ETH-messtehnik GMV2-K, Руководство по эксплуатации

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ETH-messtechnik gmbh D-74415 Gschwend P.O. 16
Nr.: 162e Operating Instructions GMV2-K revised: 09.05.2019 Rev.: 0
Subject to change without prior notice
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•
Torque Limit min:
If the measured torque is less than this limit value, NOK assessment is carried out. Allowed
setting range is 5% to 100% of transducer full scale value including overload range, however maximum "Torque Limit
max"! Counter-clockwise rotation: unsigned number entry! A correction factor alters the valid setting range!
•
Shut-off torque:
If the torque is greater than this limit value, the power-operated screwdriver is shut off by an
external power circuitry. The allowed setting range is 5% to 100% of transducer full scale value including overload
range. Counter-clockwise rotation: unsigned number entry! A correction factor alters the valid setting range
accordingly! Only available with the Inputs/Outputs option!
•
Angle (processing):
Choose between
- "no": The transducer does not have an angle counter or it is out of use.
Speed measurement can also be activated
subsequently with this setting.
- "Monitoring": with limits (OK/NOK assessment), without shut off,
- "Shut off": The same as monitoring, with power-operated screwdriver switched off by external power circuitry,
however only available for peak measurement! Switching off according to angle of rotation depends on the setting for
torque processing.
Notes:
- The angle measurement is only possible with option "W"!
- With counterclockwise rotation: Entry of numbers without sign (amount)!
- Speed: With "Yes", the speed measurement is activated. This is only available if "no angle" was selected for
cursive measurement. The speed is averaged over one second.
It can be selected whether the transducer is an angle encoder with 360 pulses/rev. or a speed encoder with
60 pulses / rev. Has. Accuracy: ± 1 digit; Maximum speed: 30000 rpm!
•
Speed:
Speed measurement is activated with "yes". This is only available when "no angle" is selected for tracking
measurement. The speed is determined for the duration of a second. You can select an angle encoder with 360
pulses/rev or a speed encoder with 60 pulses/rev for the transducer. Accuracy: ±1 digit; max. speed: 30,000 rev/min!
•
Power:
The power measurement is started with “Yes”. It is only available when speed was selected beforehand.
Subsequently, the maximum power to be measured has to be set with unit and decimal places. Setting range: 1.9999
mW to 19999 kW. A filter time on the order of a few seconds must be programmed beforehand for a stable read-out.
•
Suppression time:
To suppress undesirable high torque peaks that can occur at the beginning of the screwing
process. This occurs when the power-operated screwdriver is being mounted, and especially with self-tapping
screws. Timing is started as soon as the torque is greater than 5% of the full scale value. Peak measuring is disabled
until the suppression time has elapsed.
If suppression is not required, the value can be set to "0". The allowed setting range is 0 to 10,000 milliseconds (10
seconds).
Warning:
The suppression time also disables shut off! The protective shut off for transducer overload remains continues to be
enabled however. The angle trigger can also be delayed, so that too small an angle is displayed.
•
After Time:
The centrifugal mass of the power-operated screwdriver causes it to run on and the torque increases
further even after shut off. The after time defines how long peak measuring and angle counting continues after the
power-operated screwdriver has been switched off. The measurement is then stopped and the values saved.
The value “0” disables this time.
In most cases, we recommend you use the default setting 0
. If you select a value for the after time, it should not be
too short to avoid measuring torques that are too small! This value should be determined experimentally, as it also
impacts the angle measurement and is dependent on the screwing operation at hand.
Choose a long time period!
The allowed setting range is 10 to 10,000 milliseconds (10 seconds)
•
Memory setting:
Choose between "
no
": measured values are not stored, and "
Manual
": the measurement must be
saved with the "Store" key. Then reset the peak to zero with the "erase" key. "
Erasure time
" saves and erases the
peak automatically if OK. This time defines how long a peak stays on the screen.
The allowed setting range is 0,1 to 240 seconds (4 minutes). The setting "
RS 232
" is similar to the erasure time: the
difference being that the measured value is not stored internally, but is printed out.
For tracking measurements:
“contin”
is still available for continuous printing.
The permissible setting range is 0.5 s to 900 s (15 min).