Product Overview
1-1
514C Product Manual
Chapter 1
Product Overview
DESCRIPTION
The 514C controller is intended for use in an Industrial Environment, it should be mounted
within an enclosure which provides protection to the controller and the user.
The controller should be permanently earthed at the terminals provided.
The 514C controller is designed to control the speed of a DC Shunt wound or permanent
magnet motor. It will provide control of the motor speed in all 4 Quadrants of operation.
The controllers are designed to operate from a single phase AC mains supply in the range of
110 Vac to 415 Vac at 50 or 60 Hz. An auxiliary supply is required for internal power supply
generation and main supply contactor sequencing. Coding is derived from the main power
terminals and is functional over the whole input voltage range.
The Speed of the DC Motor is controlled using a linear closed loop system with a feedback
signal from either tachogenerator or armature voltage, the feedback source being switch
selectable.
A current loop within the speed loop always ensures that controlled levels of current are
applied to the motor, actual levels being scaleable via programmable switches.
Motor protection is provided by a Stall detection circuit which will remove current from the
motor after approximately 60 seconds.
Controller protection is provided by an Instantaneous Overcurrent trip circuit overriding
control in the event of a Short Circuit.
PRODUCT RANGE
Product
Rating
514C-04
4A DC Full Load Current
514C-08
8A DC Full Load Current
514C-16
16A DC Full Load Current
514C-32
32A DC Full Load Current
540 TO 514C UPGRADE
The 514C is designed to be functionally equivalent to the 540 series controllers not a direct
replacement. Comparisons between the two controllers connectors are included throughout
the manual.
Chapter 2 describes the terminal connectors to the 514C controller, in that section on page 2-4
is given a terminal to terminal comparison of 540/1 to 514C.
