Eaton MTL 8724-CA-PS – Intrinsically Safe Barrier
The faceplate of the MP-3000 contains the display, indicators, and
pushbuttons that make up the Operator Panel (Figures 4.1 and 4.2).
The Operator Panel is used to:
• Monitor the metered values on the Display Window
• Enter or modify settings
• View motor history or statistics
• View a log of recent events
• Determine that a trip or alarm condition exists by means of
two distinct LEDs and the cause of the trip by means of the
Display Window
• Reset the unit after a trip condition has occurred by means
of a Reset pushbutton
• Get help on any display
• Override start lockouts during emergencies
Display Window
All available displays are discussed in Sections 4.1 through 4.5.
Protected Pushbuttons
A security door located on the bottom left corner of the operator panel
covers two pushbuttons: the program pushbutton and the emergency
override pushbutton. This door will accept a lead seal to prevent unau
thorized setting changes and the overriding of start lockout functions.
Mode Pushbuttons
The four mode pushbuttons near the middle of the operator panel
provide access to the four different modes used by the MP-3000. The
Monitor, View Setting, History, and Log modes are detailed in
Sections 4.2 through 4.5.
Navigation Pushbuttons
The six buttons with up and down arrows, located beneath the mode
buttons, are used to navigate through the modes by page, line, and
value. The up arrow buttons are used to advance through the displays,
and the down arrow buttons are used to return to the previous display.
Refer to the mode examples in Sections 4.2 through 4.5 for an expla
nation on the proper use of the navigation buttons.
help Pushbutton
The Help pushbutton provides a scrolling explanation of the displayed
message, including units of measure, for any of the messages from
the MP-3000. The complete list of help messages for each function
mode is included in Tables 4.1 through 4.5. The help message may be
terminated by pressing the Reset or Help pushbutton.
Reset Pushbutton
The Reset pushbutton is primarily used to reset the MP-3000 after a
trip condition. If the cause of the trip has been corrected, the displayed
trip condition will be cleared. If a trip condition is not present, pressing
the Reset pushbutton to step out of Line, Page, or Mode will bring up
the Default mode displaying the status of the motor.
In the Program mode, pressing the Reset pushbutton will allow the
User to exit out of the Program mode without saving any entered
settings
Operator Panel LEDs
There are 10 LEDs on the operator panel.
The Protection LED is lit when the MP-3000 is in the Protection mode.
The MP-3000 provides protection when the relay is in the Program
mode; therefore, the only time the Protection LED is extinguished is
when the “DISARMED” feature is used and also for the brief time it
takes to calculate all settings when leaving the Program mode.
The Program LED is lit when the MP-3000 is in the Program mode.
The Trip LED is lit when a trip condition has occurred.
The Alarm, Aux 1. and Aux 2 LEDs are lit when these auxiliary relays
are activated. (The Program mode is used to specify what will cause
these relays to activate.)
The remaining LEDs are on the mode select buttons and indicate the
mode of the MP-3000 display: Monitor, View Setting, History, and Log.
If none of these four LEDs is lit and the relay is not in Program Mode,
the display is in the Motor State (Default) Mode.
Programming Ports
Programming Ports are located behind the lower right security door.
The RS-232 port allows the User to program the unit via the front
panel using PowerPort. To perform programming, the RS-232 setpoint
must be manually set to 1. Note that when the RS-232 setpoint is
manually set to 1. communications with the URTD is disabled, and
thermal models are used in place of RTD data. The JTAG port is for
factory use only. Note also that the RS-232 setpoint must always be
set manually – not remotely.