Tri Tool 765RVC Hyrdaulic Power Supply - Manual (Page 23)

23
Model 765 RVC Hydraulic Power Supply
92-0306 : Rev. 140715
WARNING:
PHASE MONITORS
The Model 765 RVC Power Supply has a Phase Monitor incorporated into the Motor
Starting Circuit to protect the Hydraulic Pump from being run backward.
The Hydraulic Pump will be damaged if it is run backward.
The Phase Monitor also protects the Motor from operating under low voltage, phase
loss or unbalanced voltage conditions.
OPERATION OF THE PHASE MONITOR
Indicator Lights
A green light to indicate correct phasing and voltage conditions.
A red light to indicate a tripped condition, which will either shut the unit down
or prevent it from starting.
Voltage
An adjustment is provided to set the voltage sensitivity level at which the
phase monitor will trip if the supplied voltage drops below the preset level.
Preliminary Checks
Always observe safety procedures when working with electrical circuits.
Disconnect the main power line at the source before connecting power to the
unit or changing the connections.
Before proceeding with the adjustment of the Phase Monitor sensitivity level:
Verify that the machine is set up for the Three (3) Phase Voltage Level
to be connected to 575 VAC.
Power is connected to L1, L2, L3 terminals of the Magnetic
Starter and the ‘Ground Lead’ to the ‘Ground Lug’.
The Grounding Lug is located in the upper right hand corner of
the Transformer.