AMS90/1
APPLICATION MANUAL
15P0056B1
9/17
ES719 CONTROL BOARD DESCRIPTION
ES719 CONTROL BOARD DESCRIPTION
(see fig. 4)
ADJUSTMENT TRIMMERS
ADJUSTMENT TRIMMERS
(RV1)
10V
Supply voltages ±10V.
Do not change
.
(RV2)
n MIN
Min. speed, selectable on the negative terminal of the RP1 speed
potentiometer.
(RV3)
STAB
Stability (PI time constant of voltage amplifier).
(RV4)
UP
Acceleration ramp (0,5 ... 100sec).
(RV5)
DOWN
Deceleration ramp (0,5 ... 100sec).
(RV6)
n OUT
Signal output at term. 11, proportional to the motor rotation speed
(tacho generator feedback), or to the voltage output at terminals 21-
22 in case of armature feedback.
(RV7)
I LIM
Internal current limitation.
(RV8)
COMP
Compensation for armature drop R x I.
Note: in case of tacho generator feedback, keep it in CCW position.
(RV9)
n MAX
Max. speed.
Tacho generator feedback: selectable within the range 40…230V
DC
at term. 1-2.
Armature feedback: selectable within the range 55…325V
CC
at term.
21-22.
(RV10)
n OFS
Speed amplifier offset: the correct adjustment of this trimmer avoids
speed drift with zero reference and, at the same time, an area
insensitive to minimum references.
Change it only if required: see section
CALIBRATION.
SIGNALING LEDS
SIGNALING LEDS
(L1)
15V
Presence of ±15Vdc supply voltages.
(L2)
n=0
Motor at zero speed.
(L3)
RUN
Operation enabling.
(L4)
LIM
Drive in current limitation.
... cont.
