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If the controller is in "Tacho" control then excess speed is due to
incorrect polarity of feedback. Alter wiring as follows:-
Problem
Direction correct but
overspeeding.
Direction incorrect and
overspeeding.
If motor does not run, increase Ilimit potentiometer P4 as current
may be insufficient for rotation. The Health light LED2 may light in
this condition after 15 seconds indicating a Stall, remove and reapply
power to reset condition.
If the motor is in control but runs in the wrong direction either:-
(a) Armature Control - Reverse Field Polarity.
(b) Tacho Control - Reverse Field AND Tacho Polarity.
3.
Increase speed setpoint to maximum and check armature voltage
does not exceed rated value, adjust maximum speed using P7. If a
minimum speed setting is required reduce speed setpoint
potentiometer to zero adjust minimum speed potentiometer P6 to
give required value. With speed setpoint at maximum, re-adjust
maximum speed with P7.
4.
Adjust I Limit potentiometer to suit Motor Current Rating.
1.75
(0.75)
1.5
(0.5)
1
0.5
(0.25)
506
More accurate adjustment may be achieved by inserting a meter in
the armature circuit.
5.
Adjust Ramp Up P1 and Ramp Down P2 potentiometers as required.
6.
In Armature Voltage Feedback, speed droop will occur as load is
applied. Adjust IR compensation P5 to reduce this effect. Excessive
adjustment may cause instability.
7.
It may be necessary to adjust the Speed Stability Potentiometer P3 to
improve speed response. Excessive adjustment may cause
instability.
506/507/508 - HA389427
(1.5)
(1)
2
(1)
2
2.5 (1.25)
3
(1.5)
www.comoso.com
Installing the 506/507/508
Action
Reverse Tachogenerator polarity only.
Reverse field polarity only.
3.5
(2)
3
4
5 (2.5)
1
6
(3)
(0.5)
507
4-11
7
(3)
(4)
6
8
(2)
4
2
12
(1)
(6)
508
10 (5)
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