1891c-enu_LCD_bedingt.fm, 25.04.2014
P1891E/EN 2014-02
33
LCD display
7
Angle encoder
The start button starts the tool at 30% of the maximum speed. After one revolution of the
output shaft (nominal angle 360°), measured with the resolver, the tool is stopped. During
a fixed dwell time of 200 ms, any further angle pulses occurring are traced. The total result
is shown as Actual Angle. If the test run is not terminated by a monitoring criterion and the
batch result is greater than or equal to 360 degrees, it is evaluated and displayed as OK.
Monitoring criteria are the torque and a monitoring time.
If the torque exceeds 15 % of the calibration value (even during the dwell time), or if the
monitoring time of 4 seconds expires, the test run is terminated with a
TQ>
or
TMAX
result. However, you specifically need to check whether the output shaft has actually
turned by the value indicated (e. g. by placing a mark on the spindle). If the angle reached
by the output shaft does not agree with the value displayed, either the angle factor has
been entered incorrectly or the resolver is defective.
Voltages
Second line: Current battery voltage. To ensure high utilization potential, this voltage is
monitored continuously during fastening operation. If the voltage drops below limit, a warn-
ing output on the tool.
Third line: Programmed value.
This can be changed using the control
(in menu
Tool
)
.
Speed
The start button starts the tool at the maximum speed.
Second line: Current output shaft speed.
Third line: Current torque.
Rotational speed measurement is based on the angle information of the resolver. If you
release the start button, the tool stops. As a safety function the torque is monitored by the
tool transducer. If it exceeds 15 % of its calibrated value, the speed measurement is
terminated.
Angle
A 360
OK
Voltage
V26.40
U19.00
Speed
RPM466
T 0.02
