Alesis ALESIS M20 owner manual Capstan State Transition Errors, A3-3

Appendix 3, M20 Transport & System Error

Messages

CAPSTAN STATE TRANSITION ERRORS:

"CAPSTAN CONSTANTS ERROR"

"CAP PWM TO SERVO SWITCH"

"NO CAPSTAN FGs ERROR 1"

"NO CAPSTAN FGs ERROR 3"

"NO CAPSTAN FGs IN JOG"

"NOISY CAPSTAN FG"

"CAP CAN'T GET TO SPEED 1" "CAP CAN'T GET TO SPEED 2"

"CAP SERVO COUNTR TIMEOUT"

"RAMP CAP ILLEGAL CASE 1" "RAMP CAP ILLEGAL CASE 2" "RAMP CAP ILLEGAL CASE 3" "RAMP CAP ILLEGAL CASE 4"

Default case when loading capstan constants

When capstan is not off when switching to servo control

No capstan tach pulses are detected when changing capstan speeds

No capstan tach pulses are detected when changing capstan speeds

No capstan tach pulses are detected when in jog

Capstan tach pulse period is outside acceptable range

Capstan can’t get to target speed within 5 seconds when slowing down

Capstan can’t get to target speed within 5 seconds when speeding up

Capstan FG error feedback from servo chip is not within range after 5 seconds immediately following a speed change

If capstan not off and current direction is not the same as the desired direction

If capstan target speed is not a servo- defined speed

When capstan is not off when switching to servo control

If capstan target speed is illegal (format)

DRUM STATE TRANSITION ERRORS:

"ERROR: NO DRUM FGs"

"DRUM STARTUP ERROR 0" "DRUM STARTUP ERROR 1" "DRUM STARTUP ERROR 2" "DRUM STARTUP ERROR 3" "DRUM STARTUP ERROR 4"

No drum tach pulses are detected when drum is turned on

Drum is already turned full on when servo lock is attempted

Drum jitters for more than 5 seconds when starting up

Drum not at target speed (measured with µP) within 5 seconds

Drum not at target speed (measured with servo chip) within 5 seconds

Drum speed feedback from servo chip is not stable within 2 seconds

ALESIS M20 REFERENCE MANUAL 1.06 A3-3