Sanken SAMCO-NS Series Instruction Manual page 67

■ F1903=0～65000
This code is used for setting the delay time of running energy-saving while the conditions are ready.
While Inverter finished acclerating and running stable, is satisified to simple energy saving, set the value
of F1903 in order to find the suitable time into the operation of simple energy-saving mode.
Operation command
Simple energy-saving time
Simple energy-saving rate
■ Complemental descriptions for operation of energy-saving function:
◆While inverter were on the conditions of energy-saving, output voltage satisified with voltage decrease
rate to execute V/F control, even under frequency command changing. But, while Inverter stop
command given, the original output voltage slowly increased till to completely recovery, and then
turned into deceleration procedure.
◆Turned into simple energy-saving action, the voltage decreased slowly in avoid of drastically changing
for the torque of loading, should be kept the slope around 10 sec. for Max. output voltage value.
For example: Inverter Max. output voltage is 440V，Normally run at 22.7Hz, and output voltage is 200V,
Simple energy-saving rate is 50%，so, approximately it could take around 2.3 sec. to drop the voltage to 100V.
Disabled simple energy-saving condition through using stop command, needs the fast recovery of voltage
◆
in avoid of not enough torque for loading, and causing the decline for control capacity. It should make
slope of 1 sec. for Max. output voltage.
Output frequency
Output voltage
F1902
Action scope of simple energy saving
-66-
Normal V/F output voltage
Simple energy-saving rate