Parker CM2115, Руководство пользователя

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34 CM2115
Outputs
 Software fuse – The software samples the measured current at a predefined
rate and compares this value to a set of current ranges. In these ranges
multipliers are specified which either increment or decrement the fuse value
by a multiplier. If the fuse value reaches the trip point, the output is shut off.
The fuse value cannot be decremented below the minimum fuse value. This
mechanism is disabled in the event of a hard short circuit
 Software short circuit – The output has software short circuit detection. If the
output is PWM’d, the digital feedback is sampled at each falling edge. If the
output is simply turned on, the digital feedback is sampled at the set
frequency.
5 A High-Side Output w/CS Software Short Circuit Specifications
Item MIN NOM MAX UNIT
Digital feedback negative going threshold - - 2.69 V
Digital feedback positive going threshold 2.86 - - V
Sample rate 1 - 5000 Hz
 Over temperature – If the temperature of the driver IC reaches the thermal trip
point, the output is disabled. The output will be re-enabled when the driver
cools down to an acceptable level.
 Hardware overcurrent protection – The output has hardware overcurrent
protection which will disable the output when a potentially damaging
overcurrent situation is detected. The tripping threshold of the circuit is a
function of both current and time. The figure shows the envelope of inrush
current that the circuit is designed to permit. An inrush profile with currents
outside of this envelope is not guaranteed to pass through without tripping the
hardware overcurrent circuit.
Figure 13: High side output - 5A current sense inrush envelope