ABB ACS880 N5700 Series, Firmware Manual, Page: 58 / 662

• 86.59 Latch2 position
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Example
The example below shows how to configure parameters for cyclic correction.
• 86.13 Actual position source = Encoder 1
• 86.14 Load gear numerator = 1
• 86.15 Load gear denominator = 1
• 86.16 Feed constant numerator = 1
• 86.17 Feed constant denominator = 1
• 86.18 Modulo range numerator = 1
• 86.19 Modulo range denominator = 1
• 86.50 Latch 1 trigger = Bit 0 DI1 ENC1
• 86.51 Latch 2 trigger = Bit 1 DI2 ENC1
• 78.1 Cyclic correction status = Bit 0 Enable
• 78.2 Cyclic correction value = 0.00
• 78.10 Cyclic correction enable = True
• 78.11 Axis latch position = 0.000
• 78.12 Master latch position = 0.000
• 78.13 Minimum correction = 0.000
• 78.14 Maximum correction = 10000.000
• 78.15 Maximum single correction = 10000.000
• 75.41 Superimposed velocity = 1.000
• 75.42 Superimposed acceleration = 10.000
• 75.43 Superimposed deceleration = 10.000
• 75.44 Superimposed jerk = 0.000
The figure below explains the drive behavior with corrective actions.
• Master runs forward in speed mode at low speed.
• Follower starts at a random moment and with gear-in function.
• Follower ramps to master speed but phase shift between drives occurs.
• Receives first master latch (cursor 1) at the position of 0.307 revolutions.
• Receives axis latch (cursor 2) at 0.765 revolutions.
58 Position control program features