Installation
Page 14
RES-445
8.3
Power supply
ROPEX
temperature
controller
UR
IR
R
PRIM.
U1
K2
K1
SEC.
U2
LINE
I
>
I
>
GND/
Earth
N (L2)
L1 (L1)
LINE
FILTER
ON
OFF
K1
3
3
3
1
Short wires
2
2
Line
115VAC, 230VAC, 400VAC
Circuit breaker
Double-pole, Z characteristic
Rated current: 16A, e.g. ABB-STOTZ, Type S282-Z16 (for
all applications)
Short-circuit protection only.
RESISTRON temperature controller not protected.
!
Relay K1
For "HEAT ON - OFF" function (all-pole) or
"EMERGENCY STOP".
Line filter
The filter type and size must be determined according to
the load, the transformer and the machine wiring
(
!
ROPEX Application Report).
Do not lay the filter supply wires (line side) parallel
to the filter output wires (load side).
!
RESISTRON temperature controller
belonging to the
"series 4xx".
Relay K2
Load break (all-pole), e.g. in combination with the alarm
output of the temperature controller.
Impulse transformer
Designed according to VDE 0570/EN 61558 (isolating
transformer with reinforced insulation). Connect core to
ground.
Use transformers with a one-section bobbin. The
power, duty cycle and voltage values must be
determined individually according to the application
(
!
ROPEX Application Report and "Accessories" leaflet
for impulse transformers).
!
Wiring
The wire cross-sections depend on the application
(
!
ROPEX Application Report).
Guide values:
Primary circuit:
min. 1.5mm², max. 2.5mm²
Secondary circuit: min. 4.0mm², max. 25mm²
"
These wires must always be twisted (>20/m)
#
These wires must be twisted (>20/m) if several control
loops are laid together ("crosstalk").
$
Twisting (>20/m) is recommended to improve EMC.
