Startup and operation
Page 24 RES-445
As of software revision 100:
If time control (timer function) is deactivated, the same
configuration options are available for "Output 1" as for
relay K1 ( section 9.3.8 "Relay K1 (without time con-
trol)" on page 22). The options for "Output 1" are speci-
fied with step 222 in the Configuration menu as fol-
lowed:
1. "Off"
"Output 1" has no function
2. "Active if Tact = Tset"
Output 1 is conductive if the actual value is inside
the specified temperature tolerance band
(steps 207, 208). If the actual temperature is outside
the tolerance band, "Output 1" is not conductive.
This function is the same as for the
"Temperature OK" signal up to software
revision 027.
3. "Active if Tact = Tset", with latch function
(factory setting)
"Output 1" is conductive if the actual value is inside
the specified temperature tolerance band
(steps 207, 208). If the actual temperature leaves
the tolerance band once
while the "START" signal is
active, "Output 1 is no longer conductive. "Output 1"
does not become conductive again until the next
"START" signal is activated and can thus also be
interrogated by the higher-level PLC after a heatse-
aling process.
Other settings are available in this menu when time
control (timer function) is active. They are described in
section 10.24.8 "“Output 1“/ „Temperature OK“ signal
(with time control)" on page 57.
9.3.10 Temperature diagnosis
(as of software revision 100)
The temperature diagnosis function can be activated by
means of step 217 in the Configuration menu. The
RES-445 then checks whether the ACTUAL tempera-
ture is inside a specifiable tolerance band ("OK"
window) on either side of the SET temperature. The
lower ( ) and upper ( ) limits of the tole-
rance band can be changed independently of one ano-
ther by means of steps 207 [24] + 208 [25] (factory set-
ting: -10K or +10K).
If the ACTUAL temperature is inside the specified toler-
ance band when the "START" signal is activated, the
temperature diagnosis is also activated. If the ACTUAL
temperature leaves the tolerance band, the corre-
sponding error code (307, 308) is indicated and the
fault output is switched ( section 10.27 "Fault areas
and causes" on page 64). If a heatsealing cycle is in
progress, it is immediately interrupted.
If the temperature diagnosis is not activated by the time
the "START" signal is deactivated (i.e. if the ACTUAL
temperature does not exceed the upper or lower tole-
rance band limit), the corresponding error code
(309, 310) is indicated and the fault relay is switched.
If the temperature diagnosis function is activated, an
additional delay time of 0 to 9.9s can be parameterized
for the temperature timeout with step 218 in the Confi-
guration menu. The first time the lower tolerance band
limit is exceeded, the temperature diagnosis is not acti-
vated until the parameterized delay time has elapsed.
The temperature diagnosis function can thus be expli-
citly deactivated, e.g. if the temperature drops tempora-
rily owing to the closure of the sealing jaws.
9.3.11 Heatup timeout
(as of software revision 100)
The heatup timeout can be parameterized with
step 219 in the Configuration menu ("0" = OFF).
This timeout starts when the START signal is activated.
The RES-445 then monitors the time required for the
ACTUAL temperature to reach 95% of the SET temper-
ature. If this time is longer than the parameterized time,
the corresponding error code (304) is indicated and the
fault relay is switched ( section 10.27 "Fault areas
and causes" on page 64).
Actual value
Time
Error code
307
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