Controller functions
Page 36
RES-430
10.9
"FOOT SWITCH" signal
The "FOOT SWITCH" signal is activated by means of a
control contact at terminals 12+13.
Activating the "FOOT SWITCH" signal energizes
relay K1 (or the optional solenoid drive). Among other
things, this allows the closing movement of the sealing
jaws to be started.
Deactivating the signal deenergizes relay K1 (or the
solenoid drive) again immediately, providing relay K1 is
not energized by the time control (
ª
"Relay K1 / solenoid drive (optional)" on page 21). An
additionally parameterizable hold time for the "FOOT
SWITCH" signal is described in section 10.10 "Hold
time for "FOOT SWITCH" signal" on page 36.
The "FOOT SWITCH" signal is disabled as
long as the AUTOCAL function is executing
in the Settings menu (with step 107) or an alarm is
displayed.
It is not possible to activate the "FOOT
SWITCH" signal again (in other words, relay
K1 or the solenoid drive cannot be energized) for
200ms after it is deactivated in order to prevent
bouncing or oscillation of the driven closing
movement.
10.10
Hold time for "FOOT SWITCH"
signal
A hold time between 0 and 2.0s can be parameterized
for the "FOOT SWITCH" signal with step 249 in the
Configuration menu. The relay (or the solenoid drive)
remains closed for the parameterized time after this
signal is activated, even if the signal is deactivated
again. Among other things, this permits the closing
movement of the sealing jaws to be started by briefly
activating and deactivating the "FOOT SWITCH"
signal. The hold time is deactivated if the value entered
is "0" (factory setting).
The time control must energize relay K1
within the parameterized hold time
(activation of the "START" signal). If not, the
controller indicates an alarm.
10.11
"START" signal (HEAT)
Activating the "START" signal starts the internally
parameterized timeout. The time at which the
heatsealing band begins to heat up depends on the
setting of this parameter. The "START" signal must be
deactivated again before the next timeout is activated.
Pressing the "HAND" key while the display is in the
home position causes the heatsealing band to start
heating up immediately. The internal timeout is not
started.
The "START" signal is activated by means of a control
contact at terminals 12+14.
The "START" signal is disabled as long as the
"AUTOCAL" function is executing in the
Settings menu (with step 107).
The set point that is selected for the heatsealing
temperature (step 101 in the Settings menu) must be
greater than 40°C. If not, the heatsealing band will not
be heated up.
As of SW revision 008, it is not possible to
activate the "START" signal again (in other
words, relay K1 or the solenoid drive cannot be
energized) for 200ms after it is deactivated in order
to prevent bouncing or oscillation of the driven
closing movement.
RES-430
13
FOOT
SWITCH
with
contact
0V
12
max.
5mA
!
!
!
RES-430
14
START
(HEAT)
with
contact
0V
12
max.
5mA
!
!
