Siemens Sinumerik 840D sl Function Manual page 640

Diagnostics
10.2 NCK safety alarms for Sinumerik 840D sl
22002
Parameter
Explanation
Response
Remedy
Program r
continuation
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Channel %1 spindle %2: Braking ramp longer than STOP D time.
Gearbox stage %3. Reason: %4
%1 Channel number
%2 Spindle
%3 Gear stage
%4 Identification of cause
The configured dynamic values of the spindle are not sufficient to come
to a standstill in time when a STOP D is initiated. Parameter 3 contains
the gear stage, whose braking time -- from the configured dynamic va-
lues -- exceeds the STOP D time the most. Parameter 4 includes an ID
for the MD involved:
10: Dynamic response for closed--loop speed control: MD35130
$MA_GEAR_STEP_MAX_VELO_LIMIT, MD35200
$MA_GEAR_STEP_SPEEDCTRL_ACCEL
11: Dynamic response for closed--loop position control: MD35135
$MA_GEAR_STEP_PC_MAX_VELO_LIMIT, MD35210
GEAR_STEP_POSCTRL_ACCEL
21: Dynamic response for tapping using G331, G332: MD35135
$MA_GEAR_STEP_PC_MAX_VELO_LIMIT, MD35212
GEAR_STEP_POSCTRL_ACCEL2
Alarm display
Increase MD36953 $MA_SAFE_STOP_SWITCH_TIME_D or reduce
the braking time by changing the configured dynamic response of the
spindle. The Alarm can be suppressed using MD11415 $MN_SUP-
PRESS_ALARM_MASK_2 Bit 13
Clear the alarm with the Clear key or with NC START
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