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DC Programmable Up/Down Ramp Generator AP4830

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Model AP4830 is useful in controlling process equipment requiring voltage or current ramp control. Typical applications include temperature cycling, PID controller setpoint control, motor control and bumpless control transfer.

The AP4830 provides a DC output that can be programmed to ramp up or down to a setpoint by supplying 0-5VDC to the setpoint Control (pin 6) and the Ramp Rate Control (pin 10) inputs. An external potentiometer, typically 10k Ohms or greater, may be used to attenuate the built-in +5V reference and provide intermediate setpoint and rate values. Use a rotary switch or relay to select multiple potentiometers for different setpoint and rate selections. To 'hold' the output ramp indefinitely, disconnect the setpoint control input (pin 6)

Application

Model AP4830 is useful in controlling process equipment requiring voltage or current ramp control. Typical applications include temperature cycling, PID controller setpoint control, motor control and bumpless control transfer.

Calibration

Top-accessed screwdriver adjustments provide typical ±3% zero and span adjustability. Calibration is referred to input in that adjustments are to correct for input/sensor variations. Zero is adjusted for the specified minimum output with the input at the desired minimum. Span is adjusted for the specified maximum output with the input at the desired maximum. Repeat adjustments for maximum accuracy.

AP4380

FEATURES:

  • Adjustable Ramp Rate & Setpoint

  • Built-in Reference Supply for External Programming

  • TTL Setpoint Status

  • Easy Plug-in Installation/Low Mean-Time-to-Repair

  • AC Line Powered

MORE INFO:

  • Calibration

  • Specifications

  • Ordering Information

AP4830 Table 1
AP4830 Table 2-4

SPECIFICATIONS

Output Impedance

  • Voltage Output: <10Ù

  • Current Output: >100KÙ

 

Output Drive

  • Voltage Output: 10mA, max. (1KÙ, min. @ 10V)

  • Current Output: 15V compliance @ 20mA (750Ù , max)

 

Stability (15-minute warm up)

  • ±0.05%/°C, typical

 

Ramp Rate Range

  • 100:1, min.

 

Repeatability

  • Within 1% of previous ramp or setpoint setting

 

 

Reference Supply

  • Supply: 5VDC ±5% 

  • Stability: <0.003%/°C

  • Loading: 10mA, max.

 

Setpoint Status

  • Open-collector, referenced to common. TTL compatible,

  • 20mA sink, max

 

Temperature Range

  • Operating: 0 to 60°C (32 to 140°F)

  • Storage: -20 to 85°C (-4 to 185°F)

 

Power

  • Consumption: 3W typical, 5W max

  • Standard: 120VAC (±10%, 50-400Hz)

  • Available: 240VAC (±10%, 50-400Hz)

 

Weight

  • 0.58lbs
Ordering Information

Specify:

1. Model: AP4830

2. Output Range (see Tables 2, 3)

3. Option: U (see text)

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