65
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Parameter
Notes
P1.3.12.3
1184
Speed reference interpolator TC “Ramp in inter. TC”
Set here time on what interval speed reference is updated. This function ramps the
reference between updated values.
Function is used when PLC is updating reference e.g. 100 ms time level but drive
own ramp is set much shorter to have fast response. When reference (Green) is used
without interpolator also output frequency would behave same way causing torque and
current spikes every time reference changes. When interpolator time is set to 100 ms
output frequency behaves as blue line.
Time * 100 ms
Reference
Code
ID
Parameter
Notes
P1.4.1.1
300
Start/Stop logic selection “Start/Stop Logic”
This parameter defines start stop logic when using I/O control. Some of these
selections do not include the ’Reverse’ command. Reverse command can be activated
by a separate digital input “Reverse”.
0 “Forw – Rev” – Forward Start – Reverse Start
Start 1: closed contact = start forward DI “Start 1”
Start 2: closed contact = start reverse DI “Start 2”
Freq. Out
Start 1
Start 2
1 2
The first selected direction has the highest priority.
When the DIN1 contact opens the direction of rotation starts the change.
1
“Start – Rev” - Start command – Direction command
Start 1: closed contact = start open contact = stop
Start 2: closed contact = reverse open contact = forward
5.4 Input signals
5.4.1 Basic settings
Figure 5-6 . Start forward/Start reverse
