Weidmuller PTX800D - Scalable pulse and frequency counter - Manual (Page 12)


Installation
Caution: In order to meet product safety requirements, these units
must only be installed, by qualified staff, in accordance with the
information given in this manual, using the mounting clips and terminal
blocks supplied, and all relevant national electrical wiring and safety
rules must be followed.
Locate the instrument in an area that is free from dust, moisture
and corrosive gases (pollution degree II or better). Do not cover the
ventilation holes at the side of the case.
Power Supply Requirements
PTX800A displays must be used with a suitable mains Power Supply,
ratings are as follows:
Voltage Range Nominal Voltage Power Frequency
100–132 V AC 110 V AC 6 VA 47-63 Hz
200–264 V AC 240 V AC 6 VA 47-63 Hz
21.6–26.4 V DC* 24 V DC 6 W (at 24 V DC) -
*Using a DC power supply that provides this voltage will comply with
the instrument’s cULus listing, file number: E5686.
Input connections
The input circuit has programmable trigger levels according to the
‘Input type’ setting.
For NAMUR sensors, -wire NPN sensors, -wire PNP sensors, NPN
open collector (O/C) outputs and PNP open collector (O/C) outputs set
the input type to “High Level DC” (HIdC).
For voltfree contact inputs use ‘Contact closure’ (Con). The minimum
contact closure time is 0 mS and the maximum frequency is 10 Hz.
For voltage pulses (including TTL/CMOS logic) select a suitable input
type using the trigger/reset voltage table.