Program Continuation:

Axis %1 drive %2 rotor resistance invalid

%1 = NC axis number %2 = Drive number

The value in drive MD 1138: $MD_ROTOR_COLD_RESISTANCE (cold rotor resistance) is less than or equal to zero or a format overflow has occurred.

The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not ready).

-    NC not ready.

-    The NC switches to follow-up mode.

-    Channel not ready.

-    NC Start disable in this channel.

-    Interface signals are set.

-    Alarm display.

-    NC Stop on alarm.

-    Channel not ready.

Please inform the authorized personnel/service department.

For standard motors: Reset the drive (delete the bootfile) and repeat the startup.

For third-party motors: One of the following machine data may contain an invalid value: Modify MD 1001: $MD_SPEEDCTRL_CYCLE_TIME (speed controller cycle)

Modify MD 1134: $MD_MOTOR_NOMINAL_FREQUENCY (rated motor frequency) Modify MD 1138: $MD_ROTOR_COLD_RESISTANCE (cold rotor resistance)

Modify MD 1139: $MD_STATOR_LEAKAGE_REACTANCE (Staenderstreureaktanz) Modify MD 1140: $MD_ROTOR_LEAKAGE_REACTANCE (rotor leakage reactance) Modify MD 1141: $MD_MAGNETIZING_REACTANCE (magnetizing reactance)

Fulfill the condition according to the folowing formula:

16 * P1001 * 0.00003125 * P1138 * 2PI * P1134 / (P1140 + P1141) < 1 Call the SIEMENS AG, SIMODRIVE Hotline.

Clear alarm with the RESET key in all channels. Restart part program.

© Siemens AG 2005 All Rights Reserved