Efficient Networks S120 manual Ramp function generator tracking

Models: S120

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Extended setpoint channel

2.9Ramp-function generator

RFG ramp-up time Tup p1120[DDS]

RFG ramp-down time Tdn p1121[DDS]

Initial rounding-off time IR p1130[DDS]

Final rounding-off time FR p1131[DDS]

Rounding-off typep1134[DDS]

Effective ramp-up time

Tup_eff = Tup + (IR/2 + FR/2)

Effective ramp-down time Tdn_eff = Tdn + (IR/2 + FR/2)

OFF3 deceleration ramp

OFF3 ramp-down time p1135[DDS] OFF3 initial rounding p1136[DDS] OFF3 end rounding p1137[DDS]

Set ramp function generator

Ramp function generator setting value p1144[CDS]

Set ramp function generator signal p1143[CDS]

Ramp function generator rounding-off type p1134[DDS]

p1134 = "0": continuous smoothing rounding is always active. Overshoots may occur. If the setpoint changes, final rounding is carried out and then the direction of the new setpoint is adopted.

p1134 = "1": non-continuous smoothing changes immediately to the direction of the new setpoint when the setpoint is changed.

Ramp function generator configuration, deactivate rounding in zero transition p1151[DDS]

Freezing of the ramp function generator using p1141 (not in jog mode r0046.31 = 0)

Ramp function generator tracking

If the drive is in the area of the torque limits, the actual speed value is removed from the speed setpoint. The ramp function generator tracking updates the speed setpoint in line with the actual speed value and so levels the ramp. p1145 can be used to deactivate ramp function generator tracking (p1145 = 0) or set the permissible following error (p1145 > 1). If the permissible following error is reached, then the speed setpoint at the ramp function generator output will only be further increased in proportion to the speed setpoint.

Ramp function generator tracking can be activated for the simple and the extended ramp function generators.

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Drive Functions

Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

Page 62
Image 62
Efficient Networks S120 manual Ramp function generator tracking