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Model PDA1500 Logic Level Converter
Instruction Manual
6
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
CONFIGURATION
METHOD
Two latching pushbuttons for selection of output state inversion
and cascade mode selection. No other programming required.
INDICATORS
One green power LED. Four red LED indicators to monitor live
inputs on channels 1-4. Two yellow LED indicators for inverted
output and/or cascade output mode.
INPUT
CHANNELS
Four independent, isolated input channels CH1 to CH4
Model
Input Voltage
PDA1500-115
85-130 VAC or VDC
PDA1500-230
185-265 VAC or VDC
Inputs feature high common mode rejection, ideal for noisy
environments.
INPUT VOLTAGE
THRESHOLD
Input high voltage levels are different for AC and DC
voltages. Instantaneous value is used to determine threshold
for AC input - RMS equivalents are shown below.
PDA1500-115
Input High Threshold Range:
60 VAC RMS (85 VAC peak) or 85 VDC, ±5%
Input Low Threshold Range:
31 VAC RMS (44 VAC peak) or 44 VDC, ±5%
PDA1500-230
Input High Threshold Range:
131 VAC RMS (185 VAC peak) or 185 VDC, ±5%
Input Low Threshold Range:
66 VAC RMS (94 VAC peak) or 94 VDC, ±5%
INPUT
CURRENT
1.2 mA (typical) at
“turn-on” or high input voltage
PROPAGATION
DELAYS
Input Propagation Delay to Logic Low: 4µs (typ); 15µs (max)
Input Propagation Delay to Logic High: 8µs (typ); 40µs (max)
INPUT
IMPEDANCE
PDA1500-115: >60k
Ω total impedance per channel
PDA1500-230: >140k
Ω total impedance per channel
INPUT
OVERLOAD
Must not exceed 50 mA DC (35 mA RMS) on input channels.
Maximum input power dissipation is 230 mW.
Surge protection included for up to 140 mA. Transient
protection included for up to 500 mA.