VARISCO PSDrive 11, Инструкция по установке, эксплуатации и обслуживанию

Страница: 47 / 56

11.2.5. Programming of slave units.
Menu Parameter Value
Control. param. COMBO ON to activate.
Control. param. Address 01 to 07.
Control. param. Alternance ON to activate / OFF to deactivate. It is possible to determine which devices
are included in the alternation and which are not. Devices excluded from the
alternation will receive a boot priority based on their address.
NOTE
To start or stop a group in COMBO mode, simply press the START or STOP button on the
master unit only.
NOTE
To make changes to the operating parameters of a COMBO unit, it is recommended to
act on the unit master.
Exiting the Master Menu, the remote programming of the connected slave units is reques-
ted. In this manner, all parameters set in the master are also copied to the slaves with the
exception of the parameter Address.
CAUTION
When the master menu is accessed, the communication with the slave units is interrupted
and the A13 NO COMMUNICATION alarm is produced. Communication is automatically
re-established by exiting the Master Menu.
WARNING
In case of pumps in COMBO mode, it is recommended to make the connections to the
motor respecting the same phase sequence. In this manner, it will be certain that by copy-
ing the parameter Rotation sense from the master unit to the slave units, all the pumps in
the group will maintain the correct direction of rotation.
11.2.6. Automatic master replacement
In COMBO mode, if a slave or the pump connected to it should fail or go into alarm, the unit will contin-
ue to operate with the remaining units.
In case the master or the pump connected to it should break down or go into alarm, the group will stop
for about 30 seconds producing the A13 NO COMMUNICATION alarm in the slaves. After the waiting
time has elapsed, the slave with address 1 will become master, thus allowing the group to resume oper-
ation.
If the master should reappear in the group, the group will stop again for about 30 seconds, producing
the A12 ADDRESS ERROR alarm in the master and in the slave 1.
After the waiting time has elapsed, the master will assume address 0 and the slave address 1, thus al-
lowing the group to resume operation.
PSDrive
47