Instruction manual 91/121 V6.3
Commissioning
3. If the “Drive Fault” mode has been selected in point 1, then you must also set the parameter “Advanced Setup → Aux Func -
tion → Motor Overtemp → Drive FLT delay”. With this value you set the delay from the over-temperature signal (i.e. when
the PTC opens) to when the drive stops and stops the motor signaling the alarm ”Motor Overtemperature”.
5.6.4 Speed threshold
5.6.4.1 Generality
This function is used to signal on a selectable digital output (usually matched to the DO4 output), when the motor has exceeded a cer -
tain set speed. If the motor speed is above the threshold for a time greater than 500 mSec the signaling and the associated output
changes logical status and leads to +24V or 0V if the inversion of sign is activated (see ”Dig.Op. X Sign“ on page 44).
5.6.4.2 Calibration
The only calibration to do is setting the speed threshold you want to have (standard: 30 RPM) by going to the menu "Advanced Setup
→ Aux Function → Speed Threshold → Threshold n.1" and changing the number written for the threshold to be changed (see para-
graph ”Threshold No. 1” on page 47).
To use it you have to go to the configuration menu "I/O Configure → Digital Outputs" and from the selection menu of the source of
the desired output go to select the item "Speed Thresh. X“ (see paragraph ”Dig.Op. X source“ on page 44). If you want to change the
logical state of the output when the motor exceeds the threshold, you must enter (or disconnect) the logical reversal setting of the out -
put (see paragraph ”Dig.Op. X Sign“ on page 44).
5.6.5 Maximum torque signalling
5.6.5.1 Generality
This function is used to signal on a selectable digital output, when the motor has almost reached the maximum torque: in this case it is
advisable to reduce the load otherwise the speed of the motor could be lowered and no longer controlled. When the torque delivered
by the motor exceeds 90 % of the maximum torque, the signaling occurs and the associated output changes logically and leads to
+24V or 0V if the inversion of sign is activated (see ”Dig.Op. X Sign“ on page 44).
5.6.5.2 Calibration
This function does not need calibration. To use it you have to go to the configuration menu "I/O Configure → Digital Outputs" and
from the selection menu of the source of the desired output go to select the item "Peak Mot. Load“ (see paragraph ”Dig.Op. X source“
on page 44). If you want to change the logical state of the output when the motor is at the maximum torque, you must insert (or dis-
connect) the logical reversal setting of the output (see paragraph ”Dig.Op. X Sign“ on page 44).
5.6.6 Speed reached
5.6.6.1 Generality
This function is used to signal on a selectable digital output, when the motor has reached the required speed. If the speed difference
between the actual motor and the required speed is lower than the threshold for a time greater than 500 mSec the signaling and the as -
sociated output changes logical state and leads to +24V or 0V if the inversion of sign is activated (see ”Dig.Op. X Sign“ on page 44).
5.6.6.2 Calibration
The only calibration to do is setting the speed difference threshold you want to have (standard: 2 %) by going to the "Advanced Setup
→ Aux Function → Speed Reached" menu and changing the written number (see paragraph ”Speed reached” on page 47).
To use it you have to go to the configuration menu "I/O Configure → Digital Outputs" and from the selection menu of the source of
the desired output go to select the item "Speed Reached" (see paragraph ”Dig.Op. X source“ on page 44). If you want to change the
logical state of the output when the motor has reached speed, you must insert (or disconnect) the logical reversal setting of the output
(see paragraph ”Dig.Op. X Sign“ on page 44).
5.6.7 External torque limit
5.6.7.1 Generality
This function allows you to adjust the motor torque using a selectable analog input, or with a fixed value set on the LCD display. It
should be pointed out that in any case it is essential to have a speed reference connected to the analog input AI1 as in normal mode.
The use of this function can be in several fields: by the use of the motor as an axle of a printing machine, or to limit the torque in cer -
tain machining operations on a machine tool.
5.6.7.2 Calibration
Before activating this function it is necessary to calibrate the motor as indicated in paragraph ”
“ from page
.
When the motor has been adjusted correctly, you can follow these points to calibrate the function:
Alter Elettronica s.r.l.
63
