Siemens Sinumerik 840C Diagnostics Manual page 208

1 Alarms
1.5.1 Alarm description
300716 Torque constant invalid
Scan
POWER ON
Effect
Drive only ramps up to ramp-up state 2
Explanation
1. Torque constant MD 1113 has a value that is less than or equal to 0.
2. The ratio of torque constant MD 1113/number of pole pairs MD 1112 is greater than 70.
Remedy
Enter a valid value in machine data MD 1113 "Torque constant".
Note
Applies as from SW 3
300717 Motor moment of inertia <= 0
Scan
POWER ON
Effect
Drive only ramps up to ramp-up state 2
Explanation
Motor moment of inertia MD 1117 has a value that is less than or equal to 0.
Remedy
Enter a valid value in machine data MD 1117 "Motor moment of inertia".
Note
Applies as from SW 3
300718 Calculation delay error, I controller
Scan
POWER ON
Effect
Drive only ramps up to ramp-up state 2
Explanation
Input error in calculation delay timer MD 1101
Remedy
Correct input error in calculation delay timer MD 1101.
Note
Applies for SW 3 only
300719 Error motor code number
Scan
POWER ON
Effect
Drive only ramps up to ramp-up state 2
Explanation
One of the motor code numbers is illegal (P–96 or P–238)
Additional information
Motor fault (1 or 2)
S
Remedy
Change motor code number
S
Save BOOT drive
S
Repeat ramp-up
Note
Applies for SW 3 only
300719 Motor delta not parameterized
Scan
POWER ON
Effect
Drive only ramps up to ramp-up state 2
Explanation
During activation of the star-delta changeover by drive MD1013, the motor delta (motor2) is not para-
meterized.
Remedy
Check or enter machine data for motor delta (motor 2).
Note
Applies as from SW 4
300720 Maximum motor speed too high
Scan
POWER ON
Effect
Drive only ramps up to ramp-up state 2
Explanation
Maximum motor speed MD 1401 of speed controller clock pulse MD 1001 have too great a value.
Remedy
Reduce maximum motor speed MD 1401 or set a smaller speed controller clock pulse MD 1001.
Note
Applies for SW 3 only
1–200
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Siemens AG 2001 All rights reserved 6FC5198–jAB40
SINUMERIK 840C / SIMODRIVE 611–D (DA)
04/96
07/97
POWER ON
POWER ON
POWER ON
POWER ON
POWER ON
POWER ON