Contact
Function
3-8
Fault
● The 'fault' contact closes when a fault appears (external, temper-
ature, motor chassis, etc.).
● The contact is open in the absence of faults.
4-9
Stand-by
● The 'stand-by' contact is closed when the stand-by mode is acti-
vated.
To avoid misinterpreting the status of the contacts, we recommend a one-second filter on the reading
of At Speed, Rotation, Fault and Stand-by contacts.
8.4 Command via the RS-232/RS-485 serial link
NOTICE
Risk of electromagnetic disturbance
Voltages and currents can induce a multitude of electromagnetic fields and interference signals. In-
stallations that do not comply with the EMC regulations can interfere with other equipment and the
environment in general.
► Use shielded cables and connections for the interfaces in interference-prone environments.
WARNING
Risk of electric shock in case of contact with a non-electrically insulated product
When powering off _mains switch to
O
_, certain components located between the mains connection
and the circuit breaker will still contain an electric charge (live). There is a risk of electric shock in
case of contact.
► Make sure that the mains connection is always visible and accessible so that it can be unplugged
at any time.
► Disconnect the power cable from the mains supply before working on the product.
8.4.1 Connections
The male D-Sub 9-pin connector marked
RS-232/RS-485
is used to control and monitor the pump con-
nected to an external computer. It allows also the installation of several pumps in a network. The con-
nected computer allows the modification of the default serial link setting, according to the command list
(see chapter “Command list”).
Initial serial link configuration
Description
Value
Serial link
RS-232
Transmission speed
9600 bauds
Data word length
8 bits
Parity
none (no parity)
Stop bit
1
Echo
no
Male 9-pin RS-232/RS-485 connector
Pin
Assignment
2
Data reception (RS-232)
3
Data transmission (RS-232)
Interfaces for control
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