Siemens SINUMERIK 840Di Diagnostic Manual page 778

Overview of Alarms
SIMODRIVE alarms
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.
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 1031 $MD_ENC_ABS_TURNS_DIRECT (resolution number revolution) to 0.
Program Switch control OFF - ON.
Continuation:
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 signals.
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: Use newer module.
Program Switch control OFF - ON.
Continuation:
301717 Axis %1 drive %2 SSI transmission timeout
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The SSI transmission must be completed within an NC clock cycle. This is not possible with its current
parameterization.
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: Either increase the clock cycle length of the NC or increase the SSI transmission rate (MD 1030
$MD_ACTUAL_VALUE_CONFIG_DIRECT.Bits 14 and 15).
The following transmission rates are possible: 100 kHz, 500 kHz, 1 MHz and 2 MHz. Caution: It might
be possible that the length of the encoder cable does not allow an increase in frequency!
Program Switch control OFF - ON.
Continuation:
2-778
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006