7.5.7 DC Injection Brake Enable and Disable Digital Inputs
Digital inputs can be programmed to either a Brake Enable or a Brake Disable. In the Brake Enable case the digital input must be
energized for DC braking to occur. The braking will immediately stop if the brake enable is de-energized.
In the Brake Disable case, DC braking will occur unless the Brake Disable digital input is energized. DC braking will cease if the brake
disable is energized. Once DC Braking is stopped due to a digital input state change, no further DC braking will take place and the
starter will return to the idle state.
7.5.8 Use of Optional Hall Effect Current Sensor
The Hall Effect Current Sensor should be located on Phase 1 of the motor output wiring. The sensor should be located so that the sensor
measures both the applied DC current from the starter as well as the freewheel current. The sensor is connected to the analog input of the
MX
2
card along with a burden resistor. The analog input must be set to be a 0-10V voltage input for correct operation. The sensor
scaling and burden resistance are factory selected. Please consult factory if changes to either the sensor scaling or burden resistance is
required.
z NOTE: Hall effect current sensor must be used when load inertia exceeds motor manufactures recommended specifications.
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7 - THEORY OF OPERATION
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