Ropex RESISTRON RES-5009, User Manual, Page: 38 / 98

Device functions
Page 38 RES-5009 Version 1
9.4.4 Variable calibration temperature
The calibration temperature is set as standard to 20°C. It can be changed between 0°C and 40°C and thus adapted
to the temperature of the cooled-off heating element.
With some CANopen/CAN masters, the parameter data cannot be changed during operation. Adjustment of the
calibration temperature to the current ambient conditions in the machine is then not possible.
The calibration temperature can therefore be released for setting through the input data by specifying the value “-
1” in the parameter data. Specification of the calibration temperature is then made through the input data “Setpoint/
AC temperature” (
 section 9.2.1 "AUTOCAL (AC) automatic zero calibration" on page 30).
After a change of the calibration temperature, the AUTOCAL function must be performed.
Further information
• CANopen:  section 10.7.2 "Parameter data" on page 63 (CANopen object 4003
h
)
• ROPEX CAN:

section 11.5 "Receiving CAN messages" on page 77 (addresses 0006
h
, 001A
h
...0020
h
)
9.4.5 Measurement impulse duration
The length of the measurement impulses generated by the RESISTRON
®
Temperature Controller RES-5009 can
be set. For certain applications, it can be necessary to lengthen the measurement impulse beyond the standard
1.7ms.
Further information
• CANopen:  section 10.7.2 "Parameter data" on page 63 (CANopenobject 4006
h
)
• ROPEX CAN:  section 11.5 "Receiving CAN messages" on page 77 (address 0012
h
)
9.4.6 Automatic phase correction (AUTOCOMP)
In special welding applications, it may be necessary to compensate the phase displacement between the U
R
and
I
R
measurement signals (  ROPEX application report). The phase displacement is executed with the AUTO-
COMP function.
The AUTOCOMP” function must be enabled for use in the parameter data (
 section 9.4 "Parameter data" on
page 37) (standard setting: AUTOCOMP off).
The following settings are possible:
1.
“Off” (factory setting)
AUTOCOMP function switched off.
2. “On”
The AUTOCOMP function is carried out when the AUTOCAL function (  section 9.2.1 "AUTOCAL (AC) auto-
matic zero calibration" on page 30) has been called up quickly twice in sequence. The pause between the end
of the first and start of the second execution of AUTOCAL must be less than 2.0seconds. The second execution
of AUTOCAL lasts only about 2.0seconds and contains the AUTOCOMP function.
If the pause between the two executions is longer than 2.0seconds, the normal AUTOCAL function is carried
out the second time.