ACI PTA VERSION #2 : Pulse Width Modulation Input, 0 to 10s Duty Cycle Pulse (10 second window) 0.023 to 6.0s, Field Selectable Analog Output, 2-Year Warranty
The PTA converts a pulse-width modulated input into an analog output, either voltage or current. It translates each pulse into a linear analog signal with 255 levels of resolution, holding the last output until it receives the next pulse. The output will not reset if an input pulse is too long. Users can choose from ten preset analog output spans via DIP switches, with additional fine-tuning possible through span and offset adjustments. The optically isolated input accepts both positive and negative signals. When the voltage output is capped at 18V, a 24 VDC power supply (with a 10% tolerance) ensures accuracy, even with a 700-ohm load.
Applications include:
- Pulse to analog conversion
- Control of variable speed pumps and fans
- Interface with electric actuators
- Duty cycle to analog control
- Digital to analog conversion
Specifications
| Supply Voltage: | 24 VDC (24-35 VDC) or 24 VAC (21.6-26.4 VAC), 50/60 Hz. |
| Supply Current: | 240 mA maximum using Voltage Output Terminal 125 mA maximum if not using Voltage Output Terminal |
| Input Pulse Source: | Relay Contact Closure, Transistor or Triac |
| Input Pulse Trigger Level: | Normal Mode = 5 to 26.4 VAC/DC | Triac Mode = 9 to 26.4VAC |
| Input Pulse Timing: | 0 to 10s Duty Cycle Pulse (10 second window) 0.023 to 6.0s |
| Output Voltage Signal Selectable Range: | 0-1 VDC | 0-4 VDC | 0-10 VDC | 0-13 VDC | 1-2 VDC | 1-5 VDC | 1-11 VDC | 1-14 VDC |
| Output Voltage Signal Adjustable Range: | 0-20 VDC (with adjustable offset) |
| Output Voltage Load Impedance: | 3300Ω minimum at 20 VDC +/- 10% | 400Ω minimum at 10 VDC +/- 10% |
| Output Current Signal Selectable Range: | 3300Ω minimum at 20 VDC +/- 10% | 400Ω minimum at 10 VDC +/- 10% |
| Output Current Signal Adjustable Range: | 0-20 mA (with adjustable offset) |
| Output Current Load Impedance: | 0-20 mA (with adjustable offset) |
| Output Resolution: | 256 steps of resolution |
| Accuracy (60 Hz): | +/- 2% of span for adjustable ranges, 5% for preset |
| Accuracy (50 Hz): | +/- 3% of span for adjustable ranges, 5% for preset |
| Regulated Power Output: | 24 VDC, 48 mA maximum |
| Connections: | 90° Pluggable Screw Terminal Blocks |
| Wire Size: | 16 (1.31 mm2) to 26 AWG (0.129 mm2) |
| Terminal Block Torque Rating: | 0.5 Nm (Minimum); 0.6 Nm (Maximum) |
| Operating Temperature Range: | 35 to 120°F (1.7 to 48.9°C) |
| Operating Humidity Range: | 10 to 95% non-condensing |
| Storage Temperature: | -20 to 150°F (-28.9 to 65.5°C) |
| Snaptrack Material: | Polyvinyl Chloride (PVC) |
| Snaptrack Flammability Rating: | UL94 V-0 |
| Product Dimensions: | (L) 3.75” (W) 2.20” (H) 1.15” (95.25 x 55.88 x 29.21 mm) |
| Product Weight: | 0.24 lbs. (0.1077 Kg) |
| Agency Approvals: | RoHS2, WEEE |
Data Sheets
- Input Signal:
- Pulse
- Output Signal:
- Analog
- Guage:
- No Gauge
- Failsafe:
- No Failsafe
- Valves:
- None
