ZD644: Preselect Counter 6 digits with 4 front-mounted Thumbwheel Switches

The ZD644 will be discontinued on 30.09.2023.
In certain applications, the touchMATRIX® devices DX350 or IX350 can be used as a substitute.

The preselection counter ZD644 masters demanding counting tasks with a wide range of machine applications with a limit frequency of 1 MHz. The devices of the series ZA / ZD / ZR have identical basic functions, but differ in the design as well as in the decade number of the display and in the type of available outputs.

The ZD644 has a 6-digit display as well as 4 front-side decade switches.

2 scalable inputs with format A, /A, B, /B
[HTL / TTL / RS422, single channel, dual channel,
symmetric or asymmetric]
4 control inputs for PNP / NPN / Namur signals
[10 ... 30 VDC]
Input frequency up to 1 MHz
4 fast transistor outputs with push-pull characteristic,
short-circuit-proof [5 ... 30 VDC]
4 outputs relays
4 programmable preset values
Power supply 24 VAC and 17 ... 40 VDC
Compact norm panel housing
LED display 6 digits with 15 mm height
Display range -199999 ... 999999 at 8 decades
4 front-panel preselections for the switching function
Serial RS232 interface
Dimension B x H x T = 96 x 48 x 140 mm (3.78 x 3.78 x 5.51")