Siemens SINUMERIK 840C - Page 214

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Siemens AG 2001 All rights reserved 6FC5198–jAB40
1–206
SINUMERIK 840C / SIMODRIVE 611–D (DA)
300748 Monitoring cycle of both axes not identical POWER ON
When powering up the control.
The power–up procedure is interrupted, the pulses remain disabled.
The monitoring cycle in MD 1300 was not set to an identical value for both axes of a two–axis module.
Set MD 1300 to the same value on all drives of the module.
Applies as from SW 5.4.
300749 Conversion factor between motor and load too POWER ON
When powering up the control.
The power–up procedure is interrupted, the pulses remain disabled.
The conversion factor from the motor system [increments] to the load system [mm/mdegrees] is greater than 1, or
the factor that converts the load system to the motor system is greater than 65535.
The condition for the load to motor system factor is: mm_to_incr v 65535
The condition for the motor to load system factor is: incr_to_mm v 1
mit mm_to_incr +
1
incr_to_mm
With a rotary motor encoder and a rotary axis:
incr_to_mm(n) +
MD1321
MD1322
* incr_to_mm_rot_rot
where n = 0 ... 7 (gear stage) and
incr_to_mm_rot_rot +
360000
8192
*
1
MD1318
With a rotary motor encoder and a linear axis:
incr_to_mm(n) +
MD1321
MD1322
* incr_to_mm_rot_lin
where n = 0 ... 7 (gear stage) and
incr_to_mm_rot_lin +
1000
8192
*
1
MD1318
* MD1320
Check the following safety–related MDs, depending on the motor encoder type and axis type,
and correct if necessary.
S MD 1317
Grid spacing linear scale (for a linear encoder)
S MD 1318
Encoder marks per revolution (for a rotary encoder)
S MD 1318
MD 1320
(for a rotary encoder and linear axis)
S MD 1321
MD 1322
(for the use of a gearbox)
The motor type and axis type are defined in MD 1302.
Applies as from SW 5.4
Scan
Effect
Explanation
Remedy
Note
Scan
Effect
Explanation
Conditions
Equation for
rotary axis
Equation for
linear axis
Remedy
Note
1 Alarms
1.5.1 Alarm description
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