Process Controller - Idle State And Rinse Function; Process Controller Idle State - Lenze i55AE125B Manual

Configuring the process controller

Process controller - idle state and rinse function

Process controller idle state

10.2 Process controller - idle state and rinse function
10.2.1 Process controller idle state
If the PID control is activated, this function sets the drive in process controller mode to an
energy-saving idle state when no power is required.
Details
A typical application for this function is a booster pump for water in a high-rise building. If no
tenant opens the water tap or uses the shower for a longer period of time, the pump changes
to the energy-saving idle state. This usually happens at night. The idle state automatically ends
as soon as a tenant opens the tap again. The pumps operates normally again until the condi-
tion for the idle state is pending again.
The conditions for activating and terminating the idle state can be set independently of one
another in 0x4023:001 (P610.01)
In 0x4023:005 (P610.05), a delay time can be set for the activation. This is the minimum time
the values must fall below or exceed the respective threshold before the idle state is activa-
ted.
0x4023:001 Condition for activating the idle state
(P610.01)
0 Idle state deactivated.
Frequency setpoint
1
0x2B0E (P102.00)
Frequency setpoint
0x2B0E (P102.00)
2
Current process variable
0x401F:002 (P121.02)
Frequency setpoint
0x2B0E (P102.00)
3
Current process variable
0x401F:002 (P121.02)
0x4023:006 Condition for terminating the idle state
(P610.06)
Frequency setpoint
0x2B0E (P102.00)
0
PID error value
0x401F:007
Current process variable
1
0x401F:002 (P121.02)
Current process variable
2
0x401F:002 (P121.02)
414
and 0x4023:006 (P610.06) (see the following tables).
Frequency threshold
<
0x4023:003 (P610.03)
Frequency threshold
<
0x4023:003 (P610.03)
OR
Feedback threshold
>
0x4023:004 (P610.04)
Frequency threshold
<
0x4023:003 (P610.03)
OR
Feedback threshold
<
0x4023:004 (P610.04)
Frequency threshold
>
0x4023:003 (P610.03)
OR
Bandwidth
>
0x4023:007 (P610.07)
Recovery threshold
<
0x4023:008 (P610.08)
Recovery threshold
>
0x4023:008 (P610.08)
Delay time
( + )
0x4023:005 (P610.05)
Delay time
( + )
0x4023:005 (P610.05)
Delay time
( + )
0x4023:005 (P610.05)
Delay time
( + )
0x4023:005 (P610.05)
Delay time
( + )
0x4023:005 (P610.05)
( + 2 Hz hysteresis )