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PR168 in DIN rail enclosure, front three-quarter view

PWM to 0-10 V signal conditioner, isolated input

Article number PR168

The PR168 converts a PWM signal into a 0-10 V analogue signal. The input is galvanically isolated from the output and the supply: this prevents ground loops, and the module reads both high-side and low-side switched PWM signals. DIP switches S1 and S2 select a PWM level of 3.3, 5, 12 or 24 V; the Gain adj trimmer adjusts the upper limit of the output. As delivered, 0 % duty cycle gives 0 V and 100 % duty cycle gives 10 V, for a 24 V PWM signal.

  • Supply 12 to 24 V DC
  • Input PWM, 3.3 to 24 V; level 3.3, 5, 12 or 24 V selected with DIP switches S1 and S2
  • Output 0-10 V as delivered, 11 V max.; upper limit adjustable

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Specifications

Specifications
Supply12 to 24 V DC
InputPWM, 3.3 to 24 V; level 3.3, 5, 12 or 24 V selected with DIP switches S1 and S2
Output0-10 V as delivered, 11 V max.; upper limit adjustable
IsolationInput galvanically isolated from output and supply
SetupDIP switches S1 and S2 for the input level, Gain adj trimmer for the upper limit
PWM frequency100 Hz to 5 kHz
Dimensions22.5 x 83 mm with DIN rail enclosure, 20 x 72 mm without
Factory setting24 V PWM signal; 0 % duty cycle = 0 V, 100 % duty cycle = 10 V

Connections

Connections
TerminalFunction
Terminal 1Supply plus, 12 or 24 V DC
Terminal 2Supply minus (0 V)
Terminal 30-10 V output (plus)
Terminal 4PWM input plus
Terminal 5PWM input minus

Datasheet (PDF)PDF, 139 kB

Setup

  1. Disconnect the PWM signal before changing the DIP switches, to avoid damaging the module.
  2. Select the input level with S1 and S2: 3.3 V = S1 on, S2 on; 5 V = S1 off, S2 on; 12 V = S1 on, S2 off; 24 V = S1 off, S2 off.
  3. Connect the module according to the terminal table and switch on the supply.
  4. Bring the input to the level at which you want 10 V, for example 60 % duty cycle.
  5. Turn the Gain adj trimmer until the output reaches the required level. Check with a multimeter if necessary.

Application

  • Converting a high-side or low-side switched PWM signal to 0-10 V
  • Preventing ground loops between a PWM source and a 0-10 V input

Not quite right?

A different input, another range, galvanic isolation or your own logo: we adapt the module.

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You speak directly with the developer. Call or message Willem on +31 6 45 77 55 93.

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PR168

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