Appendix 3, M20 Transport & System Error
MessagesALESIS M20 REFERENCE MANUAL 1.06 A3-3
CAPSTAN STATE TRANSITION ERRORS:
"CAPSTAN CONSTANTS ERROR" Default case when loading capstan
constants
"CAP PWM TO SERVO SWITCH" When capstan is not off when switching to
servo control
"NO CAPSTAN FGs ERROR 1" No capstan tach pulses are detected when
changing capstan speeds
"NO CAPSTAN FGs ERROR 3" No capstan tach pulses are detected when
changing capstan speeds
"NO CAPSTAN FGs IN JOG" No capstan tach pulses are detected when
in jog
"NOISY CAPSTAN FG" Capstan tach pulse period is outside
acceptable range
"CAP CAN'T GET TO SPEED 1" Capstan can’t get to target speed within 5
seconds when slowing down
"CAP CAN'T GET TO SPEED 2" Capstan can’t get to target speed within 5
seconds when speeding up
"CAP SERVO COUNTR TIMEOUT" Capstan FG error feedback from servo chip
is not within range after 5 seconds
immediately following a speed change
"RAMP CAP ILLEGAL CASE 1" If capstan not off and current direction is
not the same as the desired direction
"RAMP CAP ILLEGAL CASE 2" If capstan target speed is not a servo-
defined speed
"RAMP CAP ILLEGAL CASE 3" When capstan is not off when switching to
servo control
"RAMP CAP ILLEGAL CASE 4" If capstan target speed is illegal (format)
DRUM STATE TRANSITION ERRORS:
"ERROR: NO DRUM FGs" No drum tach pulses are detected when
drum is turned on
"DRUM STARTUP ERROR 0" Drum is already turned full on when servo
lock is attempted
"DRUM STARTUP ERROR 1" Drum jitters for more than 5 seconds when
starting up
"DRUM STARTUP ERROR 2" Drum not at target speed (measured with
µP) within 5 seconds
"DRUM STARTUP ERROR 3" Drum not at target speed (measured with
servo chip) within 5 seconds
"DRUM STARTUP ERROR 4" Drum speed feedback from servo chip is
not stable within 2 seconds