Siemens SINUMERIK 840D Series Diagnostics Manual page 543

11.02
Program Continuation:
301712
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
301713
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
301714
Parameters:
 Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
• MD_1022 $MD_ENC_ABS_RESOL_MOTOR (singleturn): number of increments per
revolution.
• MD_1027.Bit 12 $MD_ENC_CONFIG.Bit 12: parity bit
• MD_1027.Bit 14 $MD_ENC_CONFIG.Bit 14: alarm bit
• Example:
• SSI encoder with 25 bits transmission 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.
Axis %1 drive %2 multiturn SSI motor measuring system invalid
%1 = NC axis number
%2 = Drive number
The configuration of a linear SSI motor measuring system is incorrect: A linear measuring
system cannot have any multiturn information.
- Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- NC Stop on alarm.
- Alarm display.
- Interface signals are set.
Set MD_1021 $MD_ENC_ABS_TURNS_MOTOR (resolution number revolution) to 0.
Switch control OFF - ON.
Axis %1 drive %2 resolution SSI direct measuring system invalid
%1 = NC axis number
%2 = Drive number
Configuration of the direct measuring system is faulty for SSI encoder: MD_1032
$MD_ENC_ABS_RESOL_DIRECT must not be 0.
- Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- NC Stop on alarm.
- Alarm display.
- Interface signals are set.
• Set MD_1032 $MD_ENC_ABS_RESOL_DIRECT to the correct value:
• Rotary encoder: Singleturn resolution (increments per revolution).
• Linear encoder: Resolution of an increment (in nanometers).
Switch control OFF - ON.
Axis %1 drive %2 transmission length SSI direct measuring system invalid
%1 = NC axis number
%2 = Drive number
1 Alarms
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