64
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Parameter
Notes
P1.3.11.1
1276
Quick stop mode “Quick stop mode”
Selects the mode of stopping the drive when quick stop is active.
•
It is recommended to use same stop function in follower drives.
•
It is recommended to use same ramp time in both drives
0 Coast stop.
1 Ramp stop.
P1.3.11.2
1256
Quick stop ramp time
Decel time used in quick stop mode when P1.3.11.1 = 1
Code
ID
Parameter
Notes
P1.3.12.1
1900
Ramp: skip S2/S4
This function is used to bypass the second corner S ramp (i.e. to avoid the unnecessary
speed increase, the blue line in Figure 5-5.) when the reference is changed before the
final speed is reached. Also S4 is bypassed when reference is increased while speed
is ramping down.
0
5
10
15
20
25
30
35
40
0.
00
0.
42
0.
84
1.
26
1.
68
2.
10
2.
52
2.
94
3.
36
3.
78
4.
20
4.
62
5.
04
5.
46
5.
88
10 % S
0 % S
S2 Skip
P1.3.12.2
1902
CL Ramp generator follows encoder “CLRmpFollEncFreq”
In a normal situation, the ramp generator is not updated with the actual speed from
the encoder (like in open loop control). So when the limiting situation has passed
(with a step) speed is accelerated against the limit controller to the reference speed
(if speed control is used). In case this parameter is active speed will increase with set
ramp times.
This parameter also sets the Ramp Frequency to actual frequency when change from
torque control to speed control is made.
When using undervoltage
controller function 2 (Ramping
to zero speed) this parameter
needs to be activated to have
similar operation than in open loop
control.
Figure 5-5 . Second S curve is bypassed when reference
changes at 25 Hz
5.3.1 Qucik stop
5.3.2 Ramp options
0
10
20
30
40
50
60
0.
0
0.
5
1.
0
1.
5
2.
0
2.
5
3.
0
3.
5
Activated
FreqRef
FreqOut
TorqueLim
0
10
20
30
40
50
60
0.
0
0.
5
1.
0
1.
5
2.
0
2.
5
3.
0
3.
5
Disabled
FreqRef
FreqOut
TorqueLim
0
10
20
30
40
50
60
0.
0
0.
5
1.
0
1.
5
2.
0
2.
5
3.
0
3.
5
Activated
FreqRef
FreqOut
TorqueLim
0
10
20
30
40
50
60
0.
0
0.
5
1.
0
1.
5
2.
0
2.
5
3.
0
3.
5
Disabled
FreqRef
FreqOut
TorqueLim
