AMS90/1
APPLICATION MANUAL
15P0056B1
5/17
POWER AND SUPPLY CONNECTIONS
POWER AND SUPPLY CONNECTIONS
(See fig. 2)
EF
Single-phase filter against electromagnetic interference (EMI). See
section EMI CHARACTERISTICS AND INPUT FILTER.
L1/L2
Supply single-phase mains 50/60Hz (standard 400V
AC
).
FU1/FU2
Fast-acting fuses for AC/DC armature bridge protection.
FU3/FU4
Delayed fuses for TC auto-transformer primary protection.
FU5
Fast-acting fuse for field AC/DC bridge.
FU6/FU7
2A fast-acting fuses to protect the control circuit supply internal
transformer.
KM
Supply remote control switch for AC/D armature bridge.
L1
Switching impedance.
L2
Levelling impedance for form factor enhancement.
TC
Auto-transformer (if any) for D.C. motor field supply.
The alternate voltage
V
EA
on the secondary is obtained from the direct
voltage
V
EC
through the following formula:
11
.
1
⋅
=
EC
EA
V
V
M1
D.C. motor (armature c field circuit).
Note: at term. 29-30, a 2A direct current can be delivered for field winding, for all AMS90/1 sizes. Do not
exceed this value.
If the motor needs a higher current, the field circuit should be supplied
separately
.
SIGNAL CONNECTIONS
SIGNAL CONNECTIONS
(See fig. 3)
RP1
2K5 potentiometer for speed reference.
RP2
2K5 potentiometer for current limit reference (only with AMS90/1 properly
preset: see jumper J5).
KA
Run contact.
BR
Tacho generator.
PV
Tacho instrument.
PA
Ammeter instrument.
KM
NO contact of supply remote control switch for AC/DC armature bridge.
