Dubuque, IA Free Moderated Classifieds Site > OLD ADS FROM PREVIOUS YEARS
> 2001
> February
> Redlion psma power supply & interface module
Redlion psma power supply & interface module
MODEL PSMA POWER SUPPLY & INTERFACE MODULE
PROVIDES POWER FOR SENSORS & ACCESSORIES WITH SIGNAL
CONDITIONING FOR INPUT TO CUB COUNTERS* & DITAK TACHOMETERS
MEASURING WHEEL LENGTH SENSORS,
- AND MANY OTHER SENSORS, CIRCUITS AND
* PSMA intended for use with CUB 1, 2, and 7 Counters and
Cub Counters and Ditak Tachometers are basically self-powered devices and
do not have built-in capability for powering electronic sensors or accepting high
level sensor outputs. The PSMA provides a convenient plug-in answer to those
applications requiring electronic sensors or accessories for pulse input to Cub
Counters or Ditak Tachometers.
The PSMA is available in 115 VAC and 230 VAC primary power input
versions, and delivers regulated D.C. voltage for sensors and accessories. The
signal conditioning amplifier can accept NPN or PNP Open Collector Inputs, or
2-Wire Proximity Sensor Inputs.
The signal conditioning amplifier supplies two separate outputs, one for
direct drive to the H.S. Input of Cub Counters, and the other for direct drive
input to the PSM Input of the Ditak. A â€pulse stretcher†is used in the circuit
that provides the output drive to Cub Counters (Terminal 4). This stretcher
allows the PSM to accept 50 μsec input pulses, standard on some Red Lion
Controls’ sensors and accessories, and expand it to the 100 μsec pulse, as
required by the Cub Counters. The Ditak output (Terminal 8) is not pulse
stretched, allowing this output to continue functioning to the full 10 KHz limit
1. POWER SOURCE: 2 versions, for 115 VAC ±10% 50/6 0Hz, or 230 VAC
±10% 50/60 Hz. (See Ordering Information.)
2. POWER OUTPUT TO SENSORS OR ACCESSORIES: 12 VDC
3. INPUT SIGNAL: (Terminal 3) NPN Open Collector (sink), PNP Open
Collector (source), or 2-wire Input. Built-in 3.3 K resistor (Terminal 5) can
be jumper connected for pull-up, pull-down, or left unconnected as required.
Input Schmidt trigger levels as shown on BLOCK DIAGRAM.
4. OUTPUTS: (Terminal 4) Bi-polar drive to H.S. Input of Cub Counters
supplies 100 μsec negative going logic pulse (switches from +3 to 0 volts) in
response to a trailing (negative going) edge of the input pulse. This output
will drive up to 3 Cub Counters in parallel.
(Terminal 8) NPN Loaded Collector to drive the input of Ditaks. The output
voltage on this terminal is in phase with the input signal going into Terminal
3. The high level of this voltage will be clamped to 6.2V by the zener diode
in the Ditak. This output can drive up to 3 Ditak units.
