Unitek Classic P3 400/450-15, Manual

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Classic P3x/x - 15-40A
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2.5 Current controller amplification
(Switch S2 on the power section)
The current amplification is adjusted to a low armature circuit inductance
(all switches ”On”)
High inductance values can lead to motor oscillation which cannot be influenced
by means of the speed controller.
In this case, first set switch S2-2 to ”Off”.
If the drive still does not run smoothly, set the switch S2-1 to ”Off”.
The current response can be measured by means of an oscilloscope across the test
point X4:20 (see page 17).
2.6 Speed controller amplification
Adjust on the REG board.
Adjust the P-term to the lowest possible setting from 1 to 5 (switch S4).
Adjust the I-term to match the axis momentum (switch S5):
large axis momentum - high adjusted value
small axis momentum - low adjusted value
With the command value set to 10% speed, increase the amplification by turning
the potentiometer Xp clockwise. When the drive begins to oscillate, reduce the
amplification by turning the potentiometer anti-clockwise by approximately 10%.
For the fine adjustment of the amplification the control response should be
measured by means of an oscilloscope across the test point X4:15.
2.7 Further adjustments
such as speed, peak current, continuous current, etc.
(rf. to the manual REG and P3)
2.8 Switching Off
If the switch ‘drive enable’ is opened, or the drive enable voltage is switched to
0V, LED L1 and L2 will extinguish and the drive will be disabled.
DIP switch DS1:K4 (REG4) in position OFF!
After approx. 2s the thyristor triggering circuit is disabled.
2.9 Commissioning adjustments
The adjustments should be documented in the protocol and the adjustment
potentiometers should be sealed with a suitable lacquer.