The configuration of the relay outputs 1-4 is done through the menu "Set weight values for
automatic functions" (see the technical manual of the balance).
The setpoint for a relay output is programmed as follows: Press the Enter key on the handheld
transmitter of the scale, AL is shown in the display. Press key 1 - 4, corresponding to the relay
port to be programmed. The last programmed setpoint is displayed.
Use the 1 - 0 keys to enter the weight at which the relay port is to be switched. Confirm entry
with "Enter". AL is shown in the display for approx. 15 seconds.
Two alternative configurations are possible. These are defined in setup parameter 10 of the
Telebox PLC.
If parameter 10 is set to 0, all relay ports act separately. This means that as soon as one of the
setpoints is reached, the corresponding relay driver switches to "high". If two or more
setpoints are reached, they are switched on accordingly.
If parameter 10 is set to 1, only relay port 1 acts on all set setpoints.
Relay port 5 cannot be configured. This is used to signal the overload. If parameter 10 is
configured to 1, relay port 1 takes over the function of the overload output.
Special function "Secure radio connection
If a secure radio connection to the overload relay is required, activate parameter 14
additionally.
Parameter Meaning:
0
=Secured
radio connection deactivated
1-4= Drop-out time safety output in seconds
Mode of operation:
If parameter 14 is set to value 2, the operation of relay port 4 is changed. This becomes High
active as soon as the Telebox PLC and the scale are ready for operation and the radio
connection has been established. If the radio connection is interrupted for more than 2
seconds, the relay port switches to Low without delay. This ensures that the scale has not
been switched off or is out of radio range.
Parameter 33 can be used to configure the function of the relay outputs.
On the one hand, you can freely select whether an output is active low or high. Furthermore,
you can set whether the output should react to positive or negative weight (or both).
