Siemens SINUMERIK 840D - Page 777

SIMODRIVE alarms
11/2006 Overview of Alarms
2-777
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
301713 Axis %1 drive %2 resolution SSI direct measuring system invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Configuration of the direct measuring system is faulty for SSI encoder: MD 1032
$MD_ENC_ABS_RESOL_DIRECT must not be 0.
Reaction: 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 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).
Program
Continuation:
Switch control OFF - ON.
301714 Axis %1 drive %2 transmission length SSI direct measuring system
invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Configuration of the direct measuring system is faulty for SSI encoder: MD 1041
$MD_NO_TRANSMISSION_BITS_DM (SSI transmission length) is smaller than the number of all
parameterized bits in MD 1031 $MD_ENC_ABS_TURNS_DIRECT (multiturn), MD 1032
$MD_ENC_ABS_RESOL_DIRECT (singleturn) and MD 1037 $MD_ENC_CONFIG_DIRECT Bit 14
(alarm bit) and MD 1037 $MD_ENC_CONFIG_DIRECT Bit 12 (parity bit).
Reaction: 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 parameters correctly for all associated machine data:
- MD 1041 $MD_NO_TRANSMISSION_BITS_DM (SSI transmission length): number of bits in an SSI
protocol, including all bits such as alarm bit and parity bit.
- MD 1031 $MD_ENC_ABS_TURNS_DIRECT (multiturn): number of resolvable revolutions
- 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
Continuation:
Switch control OFF - ON.