4.2.6
External control
The programme sequencer CYR 20 can be
accessed from external controls via its
contact outputs (normally open contacts).
A cleaning cycle can be externally started
resp. the start of a not yet started cycle can
be inhibited (independent of the cleaning
programme selected) in order to prevent
cleaning agent from affecting important
control processes.
The programme sequencer CYR 20 has two
(floating) outputs that can be used to control
external devices, e.g. Mycom transmitters,
PLCs or transducers.
The terminal assignment of the programme
sequencer CYR 20 is shown in the following
table :
Note:
•
The unit ignores the external start
signal in the »service« mode.
•
When the external »stop« signal
has been activated, the unit
cannot be operated via the key-
board.
•
The stop input is not an
emergency stop! It does not
interrupt a running cleaning cycle.
Terminal
Input / Output
Command
Description
61
Input
Start
Start of a cleaning cycle
4
Input
Stop
The start of a cleaning cycle not started yet
is inhibited.
5
Input
Clear
Control inputs for operation of ProbFit
assemblies.
Normally terminals 5/6 are shorted-out with
a gravity hook.
6
Input
Clear
Terminal assignment
CYR 10
(external control)
YR10E4.CHP
ChemoClean CYR 10 / CYR 20
Operation
Hauser
25