Siemens SINUMERIK 840D sl Series Diagnostics Manual page 904

Overview of Alarms
• MD_1031 $MD_ENC_ABS_TURNS_DIRECT (multiturn): number of resolvable revolu-
tions
• MD_1032 $MD_ENC_ABS_RESOL_DIRECT (singleturn): number of increments per
revolution
• MD_1037.Bit 12 $MD_ENC_CONFIG_DIRECT.Bit 12: parity bit
• MD_1037.Bit 14 $MD_ENC_CONFIG_DIRECT.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_DM = 25
• $MD_ENC_ABS_TURNS_DIRECT = 4096
• $MD_ENC_ABS_RESOL_DIRECT = 4096
• $MD_ENC_CONFIG_DIRECT.Bit 14 = 1
• $MD_ENC_CONFIG_DIRECT.Bit 12 = 0
Program Con- Switch control OFF - ON.
tinuation:
301715
Axis %1 drive %2 multiturn SSI direct measuring system invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Configuration faulty for a linear and direct measuring system with SSI: A linear measuring
system cannot have any multiturn information.
Reactions: - Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Set MD_1031 $MD_ENC_ABS_TURNS_DIRECT (resolution number revolution) to 0.
Program Con- Switch control OFF - ON.
tinuation:
301716
Axis %1 drive %2 SSI direct measuring system without incremental signals not
possible
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: With the present module, it is not possible to use SSI encoders without incremental sig-
nals.
Reactions: - Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Use newer module.
Program Con- Switch control OFF - ON.
tinuation:
301717
Axis %1 drive %2 SSI transmission timeout
Parameters: %1 = NC axis number
%2 = Drive number
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005