Single Phase Motor Energy Control - Page 13 of 20
straight after the unit has been switched off, the unit is faulty and should be replaced.
(Please note there are no user serviceable parts within the EnviroStart).
4.3.3 ENERGY SAVING MODES
4.3.3.1 AUTOMATIC SAVING MODE
The unit can be switched between DOL (Direct on Line) and Energy Saving mode by
altering DIP Switch 1 as Table 1 below shows. This action should not be undertaken by
anyone other than qualified electrical engineers.
Note the circuit board is live and at 240V/110V AC. Therefore, unless you are
an experienced electrician, the unit should be switched off before the lid is
removed and any settings changed, and the lid should be replaced and
secured prior to switching on again.
Table 1
Energy Save Mode Selection
SWITCH 1
ENERGY SAVING MODE
ON
Energy Saving Disabled
OFF
Energy Saving Enabled (Default)
Once the unit is operating in Energy Saving Mode the following settings can be made. The
settings correspond to limiting how far the voltage applied to the motor will drop. The lower
the drop in voltage the more power savings will be achieved. The reason for the settings is
that there are thousands of different types of motors on thousands of different applications.
Some of these applications would benefit from not dropping the voltage as far as is possible
as they may go into an unstable or stall condition. The unit should be tried with its default
settings, (Automatic Mode – Level 2), which should work in the majority of cases. If the
motor appears to be stopping and starting or stalling after a short period of operation, switch
the unit off and change the settings to the next step towards minimum optimization and
retry. This should improve matters, if it does not move to the next setting and try again.
Note the circuit board is live and at 240V/110V AC. Therefore, unless you are
an experienced electrician, the unit should be switched off before the lid is
removed and any settings changed, and the lid should be replaced and
secured prior to switching on again.