125
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Description
Notes
P1 .10 .11
1516
Restart delay closed loop & flying start “Restart delay CL”
The time delay within which the drive cannot be restarted if flying start is used or the
control mode is closed loop.
P1 .10 .12
1700
High speed mode “Highspeedmode”
When set to yes the maximum Frequency limit is changed from 320.00 to 599.0. The
Resolution of the Frequency reference is reduced to .1 Hz in this mode.
5.12 Master follower
5.12.1 Master follower: Standard system
The Master/Follower function is designed for applications
in which the system is run by several SPX drives and the
motor shafts are coupled to each other via gearing, chain,
belt etc. The SPX drives are in closed loop control mode.
The external control signals are connected to the Master
SPX only. The Master controls the Follower(s) via a System
bus. The Master station is typically speed-controlled and the
other drives follow its torque or speed reference.
Torque control of the Follower should be used when the
motor shafts of the Master and Follower drives are coupled
solidly to each other by gearing, a chain etc., so that no
speed difference between the drives is possible.
Speed control of the Follower should be used when
the motor shafts of the Master and the Follower drives
are coupled flexibly to each other so that a slight speed
difference between the drives is possible. When both the
Master and Followers are speed-controlled, drooping is
typically also used.
LIMIT
MULDIV
RAMP GENERATOR
Ramp Control Input
ADD
+
+
+
ADD
+
+
ADD
R
+
+
P
P
R
P
P
P
W
W
W
W
W
W
W
W
W
R
F
Final Reference Location
MN
IN
MX
LIMIT
MN
IN
MX
LIMIT
MN
IN
MX
NegFreqLimit
FreqRampOut
FreqRampAdd
FreqRampStep
FreqMax
PosFreqLimit
-FreqMax
LIMIT
To Speed Controller
MN
IN
MX
LIMIT
MN
IN
MX
LIMIT
MN
IN
MX
FreqRefFilterTC
StartZeroSpeedTime
IN
TC
OUT
IN
TIME
OUT
VALUE
MULTIP
DIVIS
Neg Freq Limit
Master Reference
Master Ramp Out
FinalFrequencyRef
- Max Freq
FreqRef1
SpeedShare
Adjust Reference
“ByPass”
“Selection
logic”
“Normal Ramp”
“Second Ramp”
“Force Zero”
“RampSet”
“Ramp Hold”
Max Freq
Pos Freq Limit
100,00
R
FreqRef2
V
R
Filt x2
Switch
Ramp Control Input
FreqReference
FreqRefActual
0
0