Honeywell NXL Series Applications Manual page 54

Page 54 (68)
2.9.9 PID error value inversion
This parameter allows you to invert the error value of the PID controller (and thus the operation
of the PID controller).
0 No inversion
1 Inverted
2.9.10 Sleep frequency
The frequency converter is stopped automatically if the frequency of the drive falls below the
Sleep level defined with this parameter for a time greater than that determined by parameter
2.9.11. During the Stop state, the PID controller is operating switching the frequency converter
to Run state when the actual value signal either falls below or exceeds (see par. 2.9.13) the
Wake-up level determined by parameter 2.9.12. See Figure 1- 29
2.9.11 Sleep delay
The minimum amount of time the frequency has to remain below the Sleep level before the
frequency converter is stopped. See Figure 1- 29
2.9.12 Wake-up level
The wake-up level defines the frequency below which the actual value must fall or which has to
be exceeded before the Run state of the frequency converter is restored. See Figure 1- 29
2.9.13 Wake-up function
This parameter defines if the restoration of the Run state occurs when the actual value signal
falls below or exceeds the Wake-up level (par. 2.9.12). See Figure 1- 29
4
Description of parameters
Actual value
Wake up level (param. 2.9.12)
Output frequency
t < param. 2.9.11
t < par 2.9.11
Sleep level
param. 2.9.10
running
Start/Stop status of
the var. speed drive
Figure 1- 29. Frequency converter sleep function
Time
Time
stop
NX12k56
Honeywell