Reactions:
Remedy:
Program Continuation:
Axis %1 drive %2 transmission length SSI motor measuring system invalid
%1 = NC axis number %2 = Drive number
The configuration of the motor measuring system for an SSI encoder is incorrect: MD_5028 $MD_NO_TRANSMISSION_BITS (SSI frame length) is smaller than the number of all parameterized bits in MD_5021 $MD_ENC_ABS_TURNS_MOTOR (multiturn), MD_5022 $MD_ENC_ABS_RESOL_MOTOR (singleturn) and MD_5027 $MD_ENC_CONFIG bit 14 (alarm bit) and MD_5027 $MD_ENC_CONFIG bit 12 (parity bit).
- Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Set parameters correctly for all associated machine data:
MD_5028 $MD_NO_TRANSMISSION_BITS (SSI frame length): number of bits in an SSI protocol, including all bits, such as alarm bit/parity bit
MD_5021 $MD_ENC_ABS_TURNS_MOTOR (ultiturn): number of resolvable revolutions MD_5022 $MD_ENC_ABS_RESOL_MOTOR (singleturn): number of increments per revolution
MD_5027.Bit 12 $MD_ENC_CONFIG.Bit 12: parity bit MD_5027.Bit 14 $MD_ENC_CONFIG.Bit 14: alarm bit Example:
SSI encoder with 25 bits message frame length, 12 bits multiturn, 12 bits singleturn, one alarm bit:
$MD_NO_TRANSMISSION_BITS = 25 $MD_ENC_ABS_TURNS_MOTOR = 4096 $MD_ENC_ABS_RESOL_MOTOR = 4096 $MD_ENC_CONFIG.Bit 14 = 1 $MD_ENC_CONFIG.Bit 12 = 0 Switch control OFF - ON.
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