Chapter 7 Settings and commissioning 40058725 BTA Alpha HSM
Version: 12.19.17 Page 62 of 112 GB
ZeroDownTime and alternating operation
For these two operating modes, there are two labelers in the production line in succes-
sion, which are connected to each other via their network connection.
The ZeroDownTime function guarantees a continuous labelling of all products in the
event of a system failure, for example, a label roll end event.
The alternating operation guarantees a fast system set-up time with a uniform loading of
both labelers. In the event of a system failure, however, not all products may be labelled,
i.e. ZeroDownTime mode is not possible in the alternating operation.
The machine parameter 023 “ZeDoTime Mode” is used to set whether labels are labeled
in the ZeroDownTime mode or alternating operation.
Description
In production direction, the front labeler is the Master System and the rear labeler is the
Slave System.
The master system permanently reports the status of the products detected by the first
product sensor to the slave system. The products are thereby not only counted, but the
slave system also receives information as to whether a product has already been labelled
by the master system or not. The position of each product is tracked by the rotary encoder
attached to the conveyor system.
If the master system stops while production is running (e.g. end of roll), it is automatically
switched over to the slave system and thus prevents labelling disruptions.
Fig. 7-15: ZeroDownTime, alternating operation
PRODUCT SENSOR 1 TO THE MASTER SYSTEM
PRODUCT SENSOR 2 TO THE SLAVE SYSTEM
In the ZeroDownTime mode, the label roll is switched back to the master system after
the label roll has been changed, and the products between the systems are still labelled
by the slave system.
In the alternating operation, the slave system will remain active until it stops (e.g. roll
end). Now it is automatically switched back to the master system again, and the products
between the systems will not be labelled.
If the slave system is equipped with an optional Low label warning, the switch-over to the
master system does not take place until the programmed remaining label length has
elapsed, in which case the products between the systems may not all be labelled.
To Next Page
Loading...