Controller functions
RES-403
Page 19
by the LEDs. These states are described in detail in the
table below:
6.2
Temperature setting
(set point selection)
The heatsealing temperature is set by means of a 2k
Ω
potentiometer at terminals 16+17. The connecting
wires between the controller and the potentiometer
must be shielded (
ª
section 5.6 "Wiring diagram
(Standard)" on page 10).
Setting range:
0
Ω
Æ
0°C
2k
Ω
Æ
300°C (PD-3) or 500°C (PD-5)
(depending on the controller configuration).
The relationship between the potentiometer setting and
the SET temperature is linear.
The terminals 16+17 are not potenial-free and
might have the potential of the secondary
voltage of the impulse transformer.
For the terminals of the external potentio-
meter touch voltage protection must be
installed.
External grounding is not allowed. If this war-
ning is ignored, the controller will be
damaged by frame currents.
If a ROPEX PD-x precision potentiometer is used, the
SET temperature can be adjusted exactly with the help
of the digital display in the window of the dial. The
number which appears on the display corresponds to
the SET temperature in °C.
The set point that is selected for the heatsealing tempe-
rature must be greater than 40°C. If not, the heatse-
aling band will not be heated up when the "START"
signal is activated.
If a potentiometer is not connected, the set
point is assumed to be zero. When you con-
nect the potentiometer, please note the direction of
rotation!
LED
Blinks slowly (1Hz)
Blinks fast (4Hz)
Lit continuously
AUTOCAL
(yellow)
RESET active,
START and AUTOCAL
functions are locked
(as of October 2005)
AUTOCAL requested, but
function disabled
AUTOCAL executing
HEAT
(yellow)
—
START requested,
but function disabled
START executing
OUTPUT
(green)
In control mode the luminous intensity is proportional to the heating current.
ALARM
(red)
Configuration error,
AUTOCAL not possible
Controller calibrated incor-
rectly, run AUTOCAL
Fault,
ª
section 6.12
e.g.
PD-3
Potentiometer P03
with
digital dial KD
3
1
3
1
2
2
RES-403
0V
Set point
selection
input
17
16
cw
2K
Cable shielded
!
!
!
!
