Controller functions
Page 30
RES-403
Version 1
The "OUTPUT" LED blinks repeatedly when the "AUTOCOMP" function is executed and the actual value
output (terminals 17+14) is set to 0…3°C (i.e.approx. 0VDC).
6.8
Temperature diagnosis
(as of October 2005)
An additional temperature diagnosis can be activated in the ROPEX visualization software (
nostic interface/visualization software (as of October 2005)" on page 32). The RES-403 checks whether the
ACTUAL temperature is within a settable tolerance band ("OK" window) on either side of the SET temperature.
The lower (
) and upper (
) tolerance band limits are configured in the factory to -10K and +10K.
These values can be set independently of one another in the ROPEX visualization software.
If the actual temperature is inside the specified tolerance band when the "START" signal is activated, the temper-
ature diagnosis is activated as well. If the ACTUAL temperature leaves the tolerance band, the corresponding error
code (307 or 308) is indicated and the alarm relay is switched (
section 6.12 "Error messages" on page 34).
Function
AUTOCAL
signal
„AC“
t
t
0
0
AUTOCAL
AUTOCOMP
lit
t
OFF
„AUTOCAL“
t
OFF
LED
lit
„OUTPUT“
LED
24VDC
Δϑ
lower
Δϑ
upper