GE Ecomagination AF-600 FP Programming Manual page 132

Parameter Description
When low power or low speed is detected, the motor is
stopped, but the reference signal (f
controller is still monitored. Because of the low pressure
created, the controller increases the reference signal to
gain pressure. When the reference signal has reached a set
value, f , the motor restarts.
wake
No-flow detection (pumps only) Yes
Low speed detection
External signal
Pressure/temperature
(transmitter connected)
Output frequency
Table 3.22 Configuration Overview
NOTICE
Sleep mode is not active when local reference is active
(press the navigation keys to set speed manually). See
parameter F-02 Operation Method.
Does not work in hand-on mode. Carry out auto set-up
in open loop before setting input/output in closed loop.
AP-40 Minimum Run Time
Range: Function:
10 s [0 - 600 s] Set the minimum running time for the motor
*
after a start command (digital input or
fieldbus) before entering sleep mode.
AP-41 Minimum Sleep Time
Range: Function:
10 s [0 - 600 s] Set the minimum time for staying in sleep
*
mode. This setting overrides any wake-up
conditions.
AP-42 Wake-up Speed [RPM]
Range: Function:
0 RPM [par. To be used if parameter K-02 Motor Speed Unit
*
F-18 - has been set for [0] RPM (parameter not
par. F-17 visible if [1] Hz is selected). Only to be used if
RPM] parameter H-40 Configuration Mode is set for
[0] Open loop and an external controller
applies speed reference.
Set the reference speed at which the sleep
mode should be canceled.
AP-43 Wake-up Speed [Hz]
Range: Function:
0 Hz [par. To be used if parameter K-02 Motor Speed Unit
*
F-16 - has been set for [1] Hz (parameter not visible if
[0] RPM is selected). Only to be used if
DET-620D
AF-600 FP™ Programming Guide
) from the external
ref
Internal PI controller
(parameter H-40 Configuration Mode: Closed loop)
Sleep mode Wake up
–
Yes –
Yes –
– Yes
– No
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The speed is set manually by an external reference signal
(remote reference). Use default settings (parameter group
AP-3#) for tuning of the no-flow function.
External PI controller or manual control
(parameter H-40 Configuration Mode: Open loop)
Sleep mode
Yes (except manual
setting of speed)
Yes
Yes
–
–
AP-43 Wake-up Speed [Hz]
Range: Function:
par. parameter H-40 Configuration Mode is set for [0]
F-15 Hz] Open Loop and speed reference is applied by an
external controller controlling the pressure.
Set the reference speed at which the sleep
mode should be canceled.
AP-44 Wake-up Ref./FB Difference
Range: Function:
10 % [0 - Only to be used if parameter H-40 Configuration
100 %] Mode is set for [3] Process Closed Loop and the
*
integrated PI controller is used for controlling
the pressure.
Set the pressure drop allowed in percentage of
setpoint for the pressure (P
the sleep mode.
AP-45 Setpoint Boost
Range: Function:
0 % [-100 Only to be used if parameter H-40 Configuration
- Mode is set to [3] Closed Loop and the integrated
*
100 %] PI controller is used. In systems with, for example,
constant pressure control, it is advantageous to
increase the system pressure before the motor is
stopped. This extends the time in which the motor
is stopped and helps to avoid frequent start/stop.
Set the overpressure/temperature in percentage of
setpoint for the pressure (P
entering sleep mode.
If set to 5%, the boost pressure is P
negative values can be used, for example, in
cooling tower control where a negative change is
needed.
Wake up
–
–
–
No
Yes
) before canceling
set
)/temperature before
set
x1.05. The
set
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