Ropex RES-445 - Power Supply

Installation
RES-445 Page 15
8.3 Power supply
ROPEX
temperature
controller
U
R
I
R
R
PRIM.
U
1
Kb
Ka
SEC.
U
2
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
50/60Hz
Circuit breaker
Double-pole, C characteristic
( ROPEX Application Report)
Short-circuit protection only.
RESISTRON temperature controller not protected.
!
Relay Ka
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 run the filter supply wires (line side) parallel
to the filter output wires (load side).
!
RESISTRON temperature controller belonging to the
4xx Series.
Relay Kb
Load break (all-pole), e.g. in combination with the alarm
output of the temperature controller.
When using a series resistor RV-....-1 the relay Kb
shall be installed.
!
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 deter-
mined 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.