Controller functions
Version 1
RES-409
Page 37
1. The "AUTOCAL" function cannot be activated until 10seconds after the controller is switched on. If you attempt
to run it sooner, it will not work.
2. The "AUTOCAL" function cannot be activated if the heatsealing band cools down at a rate of more than 0.1K/s.
3. The "AUTOCAL" function is not run until the end of the heatup time ("HEAT" LED lit).
4. If the "RESET" signal (24VDC) is activated, the "AUTOCAL" function is not executed.
5. Directly after the controller is powered up, the "AUTOCAL" function cannot be run if error codes 1…3, 5…7 (as
of February 2007 also: 101…103, 201…203, 801, 9xx) are displayed (
section 10.16 "Error messages" on
page 52). If the controller has already operated correctly – a minimum of once – after powering up, the
"AUTOCAL" function cannot be run if error codes 5…7x (as of February 2007 also: 201…203, 801, 9xx) are
displayed.
If the "AUTOCAL" function is temporarily locked, the request is stored. As soon as "AUTOCAL" is allowed again,
the function is started and "AUTOCAL active" appears in the controller status.
If a START or STOP command is received between the "AUTOCAL" request and the actual start of the
"AUTOCAL" function, the "AUTOCAL" request is canceled again and the START or STOP command is executed
instead.
10.3.4 Alloy / range (heatsealing band alloy TCR / temperature range)
The RES-409 can be configured for different heatsealing band alloys and temperature ranges (T
max
) with CAN
message address 8. The set heatsealing band alloy and temperature range are permanently stored in the
controller and are not lost even if the power supply fails. The current setting can be reloaded by means of CAN
message address 11. The controller is delivered with the setting "1", in other words TCR = 1100ppm and
temperature range = 300°C.
If "Alloy/range" (CAN message address 8) is set to "Variable" (value 11), you can now specify the temperature
coefficient TCR of the heatsealing band material with CAN message address A, the temperature range with CAN
message address 14
h
, and the maximum permissible set point T
max
with CAN message address 13
h
.
If a set point which is higher than the maximum permissible temperature T
max
is selected, it is either limited to the
maximum value (controllers manufactured as of February 2007) or ignored (controllers manufactured up to
January 2007).
The scale of the analog output for the ACTUAL temperature is dependent on the selected temperature range:
You must always run the "AUTOCAL" function after changing the alloy/range.
10.3.5 RESET command
This command is used to reset the controller. If the controller reports a fault (
section 10.4.1 "Controller status"
on page 39), it must be reset with this command (and possibly also with an AUTOCAL command).
If a communication problem occurs, the controller must be reset by briefly disconnecting it from the power supply.
The controller runs an internal initialization lasting approximately 500ms after the "RESET"
command is received. The next heatsealing process cannot be started until it has finished.
Temperature
range
Scale
200°C and 300°C
0…10VDC (corresponds to
0…300°C)
400°C and 500°C
0…10VDC (corresponds to
0…500°C)
!
!