
ASHLEY-EDISON (UK)
Manufacturers of Voltage Stabilisers – Power Conditioners – Constant Voltage Compensators – Variable Transformers
OSES THREE PHASE OPERATOR MANUAL - EN
Issue No: AE/OSES-3P/TP/07/2011
- Page 19 of 37-
9. OUTPUT VOLTAGE ADJUSTMENT
9.1 INTRODUCTION
The Stabiliser will normally be supplied factory pre-set for the voltage requested at
time of ordering. Should the output voltage be required to be adjusted / recalibrated
this can be achieved by adjusting the settings on the Servo Amplifier PCB.
It should be noted that as a general rule for H, HD, LY & LD series models the
permissible input voltage swing is stated relative to the set output voltage.
WARNING!
Adjusting the Output Voltage should only be carried out by duly
qualified personnel.
The Stabiliser can contain potentially dangerous and life
threatening voltages – up to 600 V AC. Use extreme caution when
opening the covers and do not leave the unit unattended with the
doors open or covers off.
9.2 VOLTAGE ADJUSTMENT PROCEDURE
• Altering the output voltage on the stabiliser is done by adjusting a screwdriver
slotted potentiometer on the Servo Amplifier PCB (see below).
• The three pots (one per phase) are clearly marked on the board - ‘VR1’, ’VR2’,
‘VR3’.
‘VR1’
L1 phase
‘VR2’
L2 phase
‘VR3’
L3 phase
OUTPUT VOLTAGE ADJUSTMENT
LED
Indicators
PROTECTION DIP
SWITCH
“SW1”
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