LEESON SM4 Series Flux Vector - Manual (Page 40)

39
Commissioning
Code Possible Settings
IMPORTANT
No. Name Default Selection
P207 Proportional
Gain
5.0 0.0 {%} 100.0 Used to tune the PID loop:
• Increase P207 until system
becomes unstable, then decrease
P207 by 10-15%
• Next, increase P208 until feedback
matches setpoint
• If required, increase P209 to
compensate for sudden changes in
feedback
P208 Integral Gain 0.0 0.0 {s} 20.0
P209 Derivative Gain 0.0 0.0 {s} 20.0
Note
• Derivative Gain is very sensitive to noise on the feedback signal and
must be used with care
• Derivative Gain is not normally required in pump and fan applications
P210 PID Setpoint
Ramp
20.0 0.0 {s} 100.0 • time of setpoint change from P204
to P205 or vice versa.
• Used to smooth the transition
from one PID setpoint to another,
such as when using the Preset PID
Setpoints
(P231...P233)
P214 Minimum Alarm 0.0 P204 P205 Use with P140, P142 = 18...23
P215 Maximum Alarm 0.0 P204 P205
P231 Preset PID
Setpoint #1
0.0 P204 P205 TB-13A activated; P121 = 3 and
P200 = 1 or 2
P232 Preset PID
Setpoint #2
0.0 P204 P205 TB-13B activated; P122 = 3 and
P200 = 1 or 2
P233 Preset PID
Setpoint #3
0.0 P204 P205 TB-13C activated; P123 = 3 and
P200 = 1 or 2
P234 (2) Preset PID
Setpoint #4
0.0 P204 P205 TB-13D activated; P124 = 3 and
P200 = 1 or 2
P240 Sleep Threshold 0.0 0.0 {Hz} 500.0 • If drive speed < P240 for longer
than P241, output frequency = 0.0
Hz; drive display = SLP
• P240 = 0.0: Sleep mode is
disabled.
• P200 = 0…2: Drive will start again
when speed command is above
P240
• P242 > 0.0: Drive will restart when
the PID feedback differs from the
setpoint by more than the value
of P242 or when the PID loop
requires a speed above P240.
P241 Sleep Delay 30.0 0.0 {s} 300.0
P242 Sleep Bandwidth 0.0 0.0 B
max
Where: B
max
= |(P205 - P204)|
P243 Feedback Sleep
Entry Threshold
0.0 P204 P205 Active only when P244 = 1 or 2
(2) Parameter applicable to models 15HP (11kW) and higher.