7.3.2 Process controller sleep mode
If the PID control is acvated, this funcon sets the drive in process controller mode to an
ener
gy-saving sleep mode when no power is required.
Details
A typical applicaon for this funcon 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 me, the pump changes
to the energy-saving sleep mode. This usually happens at night. Thesleep mode automacally
ends as soon as a tenant opens the tap again. The pumps operates normally again unl the
condion for the sleep mode is pending again.
The condions for acvang and terminang the sleep mode can be set independently of one
another in 0x4023:001 (P610.01) and 0x4023:006 (P610.06) (see the following tables).
In 0x4023:005 (P610.05), a delay me can be set for the acvaon. This is the minimum me
the values must fall below or exceed the respecve threshold before the sleep mode is
acvated.
0x4023:001
(P610.01)
Condion for acvang the sleep mode
0 Sleep mode deacvated.
1
Frequency setpoint
<
Frequency threshold
( +
Delay
me
)
0x2B0E (P102.00) 0x4023:003 (P610.03) 0x4023:005 (P610.05)
2
Frequency setpoint
<
Frequency threshold
( +
Delay me
)
0x2B0E (P102.00) 0x4023:003 (P610.03) 0x4023:005 (P610.05)
OR
Current process variable
>
Feedback threshold
( +
Delay me
)
0x401F:002 (P121.02) 0x4023:004 (P610.04) 0x4023:005 (P610.05)
3
Frequency setpoint
<
Frequency threshold
( +
Delay me
)
0x2B0E (P102.00) 0x4023:003 (P610.03) 0x4023:005 (P610.05)
OR
Current process variable
<
Feedback threshold
( +
Delay me
)
0x401F:002 (P121.02) 0x4023:004 (P610.04) 0x4023:005 (P610.05)
0x4023:006
(P610.06)
Condion for terminang the sleep mode
0
Frequency setpoint
>
Frequency threshold
( + 2 Hz hysteresis )
0x2B0E (P102.00) 0x4023:003 (P610.03)
OR
PID error value
>
Bandwidth
0x401F:007 0x4023:007 (P610.07)
1
Current process variable
<
Recovery threshold
0x401F:002 (P121.02) 0x4023:008 (P610.08)
2
Current process variable
>
Recovery threshold
0x401F:002 (P121.02) 0x4023:008 (P610.08)
Conguring the frequency control
Conguring the process controller
Pr
ocess controller sleep mode
105