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Altivar
®
58 TRX AC Drives
Type FVC Adjustment Parameters
69
09/2003
© 2000–2003 Schneider Electric All Rights Reserved
ATV58 TYPE FVC ADJUSTMENT PARAMETERS
Ability to Shape Acceleration and Deceleration Ramps
+ Speed/ - Speed Around a Reference:
• When the run command is given, the motor will reach the speed reference following the acceleration
ramp.
• A pulse on + speed or - speed will change the motor speed. The motor will change speed following
AC2 or DE2.
• If the Speed reference is changed, the ratio between the speed reference and the speed adjusted by
+ speed or - speed will be constant. This ratio is limited by the parameter (SRP).
• Adjustments around the setpoint using + speed and - speed are made following the AC2 and dE2
ramps.
+ Speed/ - Speed with Single Action Pushbuttons and No Reference Saving: Str = SRE
tA1: can be set between 0 and 100%
(of ACC or AC2)
tA2: can be set between 0 and (100%
- tA1) (of ACC or AC2)
tA3: can be set between 0 and 100%
(of dEC or dE2)
tA4: can be set between 0 and (100%
- tA3) (of dEC or dE2)
Parameters tA1, tA2, tA3 and tA4 can
be set in the ADJUST menu
t
0
tA1
tA2 tA3 tA4
ACC or AC2
f (Hz)
t
0
dEC or dE2
f (Hz)
custom ramps copy.eps
LI faster
LSP
LSP
t
t
t
t
t
0
0
0
1
LI slower
1t
HSP
SRP
SRP
Reference
HSP
Reference
F : Motor frequency
0
LI forward
1
0
LI reverse
1
SRP
+speed-speed.eps