Automation Direct DURApulse GS4 User Manual page 266

Chapter 4: AC Drive Parameters
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• As the PID Feedback Value (PV) rises above the "Sleep Reference" value set in P7�29, the output
frequency decreases at a rate determined by the active deceleration parameter (P1�02, 04, 06, or
08)� At the same time, "Sleep Time" (P7�31) begins to increment�
• Depending on the rate of deceleration and the "Sleep Time" setting, the output frequency may
plateau at the "Lower Limit of Output Frequency" (P6�26) if "Sleep Time" is not complete, or
continue deceleration to zero output frequency if "Sleep Time" had elapsed�
• When the PID Feedback Value (PV) falls below the "Wake-up Reference" value set in P7�30, the
"Wake-up Delay Time" (P7�32) begins to increment� When elapsed, the output frequency begins
to increase at a rate determined by the selected acceleration parameter P1�01, 03, 05, or 07�
• For Sleep Function to be active in LOCAL and REMOTE modes, P3�57 bit 0 must be set to 1� For
Sleep Mode to be active in REMOTE mode only, P3�57 bit 0 = 0�
Mode #03 Example #1: Forward-Acting PID
• P7�29 must be greater than P7�30�
• 30kg is the setpoint�
Set the following parameters:
• P4�03 = 5 (AI1 as PID Feedback Signal)
• P7�00 = 2 (PID Forward Local/Remote), 4 (PID Forward
Remote Only), or 6 (PID Forward Local Only)
• P7�29 = 110% [Sleep Reference 33kg = (110%)·(30kg)]
• P7�30 = 120% [Wake-up Reference 36kg = (120%)·(30kg)]
• Case #1: If Feedback < 33kg, frequency decreases
• Case #2: If Feedback > 36kg, frequency increases
Sleep Reference Point
Wake-up Reference Point
Output Freq. Lower Point
P2.08 / P2.16
Page 4–172
M #03:
ode
c
requency alculation
/a M , or P7.00 = 5
uto ode
Output
Frequency
Setpoint
P7.29
P7.30
P6.29
DURA
pulse
c (u Pid; P7.00 = 1
oMMand sing
6 l
or and in ocal
P7.31
Sleep Time
GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
2, or P7.00 = 3
or
/h M )
and ode
Zone PID Physical Quantity
When greater that 12kg,
Sleep Zone
the GS4 drive goes to sleep
When between 6kg~12kg,
Transition Zone the GS4 drive remains in its
previous status
When less than 12kg, the
Wake-up Zone
GS4 drive wakes up
PID Feedback
PID
Feedback
Output Freqency
P7.32
Wake-up
Delay Time
4
or