User Manual – Rev BE AMETEK Programmable Power
MX Series 98
4. Front Panel Operation
4.1 Tour of the Front Panel
The MX Series with type P or type Pi have identical front panels although some
of the keys found on the front panel are only used by MX models with the 3Pi
controller. If your unit is a P type controller, these keys will act as do not cares.
This chapter provides information on operating the MX with either controller
type.
Before operating the AC source using the front panel, it helps to understand the
operation of the front panel controls. Specifically, the operation of the knob,
keyboard and the menu layout are covered in the next few paragraphs.
4.1.1 Front Panel Controls and Indicators
The front panel can be divided in a small number of functional areas:
• Mains circuit breaker
• Status Indicator lights
• Shuttle knob
• LCD display
• FUNCTION keypad
• DATA ENTRY keypad
4.1.2 System On/Off Circuit Breaker
The circuit breaker located on the bottom left side of the front panel disconnects
the low voltage supply of the MX Source from the three phase Line input. This
will remove power from the mains AC input contactor and thus remove input
power from the MX Series power source. As such, the circuit breaker acts as an
indirect power on/off switch for the MX Series unit. Note however than AC input
power remains applied to the primary side of the input transformer.
When the input current rating of the MX Series AC power source is exceeded,
the protective fuses (F1 through F3) will blow. In this case, power to the low
voltage supply may remain through the front panel circuit breaker. In this case,
the on/off circuit breaker should be opened (power off) first followed by a
complete disconnect of all ac input power through an installed main circuit
breaker.
Note that in MX60, MX90 and MX135 systems, each unit has its own on/off
circuit breaker and set of line input fuses.
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