Dcreg4 Electromechanical Diagram For Reference Switching - Santerno DCREG2 Series User Manual

DCREG2
DCREG4
6.10.2 DCREG4 E
S
W ITCHING
The diagram in Figure 4 illustrates how commands and references are managed both for
magnetization/demagnetisation and for counter-energizing, which is essential to suppress residual
magnetization.
If relays are used instead of a PLC, relays controlled by DCREG4's digital outputs may be equipped with
AC or DC coils, provided that the maximum allowable power value is not exceeded. Because of weak
current values (milliAmperes), use low capacity relays to make sure that contacts properly close.
2 11 3
PI
PE
PD
RE RI
RE
LEGEND
LMA: Indicator light, magnet on
PD: Button, magnet deenergizing
PDL: Button, magnet partial deenergizing
PE: Button, magnet energizing
PI: Potentiometer, counter-energizing current
PV: Potentiometer, energizing voltage
LECTROMECHANICAL
1 5 24 26
RF
PDL
RA
PV
RI
RI
RA
RE
RA RC
D
IAGRAM
MDO 2
40 34 36 38 29
RE
RC
RF
RF
FIG. 4
RA: Relay, converter enabling
RC: Relay, storage of counter-energizing beginning
RE: Relay, storage of energizing/deenergizing commands
RF: Relay, end of cycle storage
RI: Relay, current in the magnet "on"
USER MANUAL
F R
OR EFERENCE
MDO 3 MDO 4
31 35 37 39
33
LMA
RI
113/200
15P0059B3
MDO 5
41 43
RC