Siemens SINAMICS PERFECT HARMONY GH180 Function Manual page 329

NXGpro 6.3 High Star ng Torque Mode for Conveyor Applica ons
Flux
Mag Current
IdsRef
Motor Speed
(slip + cmd)
Motor Speed
(from PLC)
Slip
speed
Start Current
Iqs FF (from
PLC)
Same Signal
Torq Current
Limit
(from PLC)
Two signals from PLC
PlcHstEnable_O
– Current and Speed
Set true
Current has two
From PLC
func ons – switched
at comple on
Figure 8-31 PLC Directed High Starting Torque Mode Diagram
Functionally the controls can be broken down into two segments:
1. while in the HST state machine
2. and, after completion of the state machine for continuous operation
NXGPro+ Control Manual
Operating Manual, A5E50491925A
95% Flux
No Load current
Rated Slip Speed
Slip Speed based on
Iqs FF
Desired star ng torq
Magne zing Run State
State
FluxAtSetpoint_I
InvRunRequest_O
from drive
From PLC
Run State
(drive enabled)
Advanced Operating Functions
8.23 Conveyor Applications
Rated Flux
Flux Reg enabled Flux Reg enabled
Delay
(Flux
Complete
Ramp
HstMode_O (PLC)
me)
AtMinSpeed_I
(drive)
Magne za on
HighStar ngTorqueModeComplete_I
Complete_I
(a er ini alizing loops and 1 second
from drive
delay)
Speed Reg and
Ramp enabled
Must maintain speed reg in
satura on
Slip Speed based on calculated slip
compensa on
Transi on from HST to normal
opera on
Current used for
Torque limit
(same current input is used for
both – switched internally)
Droop enabled
and Slip based on Ids Ref, Flux,
Inductance, and Iqs current with slip
constant
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