Program Continuation:

Axis %1 drive %2 speed controller at limit

%1 = NC axis number %2 = Drive number

The speed controller output is lying for an impermissibly long time at its limit (MD 5605: $MD_SPEEDCTRL_LIMIT_TIME and MD 1606: (speed controller limit threshold). The monitoring system is only active when the speed setpoint is below the speed threshold in MD 5606: SPEEDCTRL_LIMIT_THRESHOLD (speed controller limit threshold).

-    Mode group 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.

Is the drive blocked?

Is the encoder connected? (check the encoder cable)

Check the shield connection on the encoder cable Encoder defective?

Check the encoder resolution

The Uce monitoring circuit has been activated (perform a reset by switching the power supply off and on again).

Replace the control module.

Modify MD 5605: SPEEDCTRL_LIMIT_TIME and MD 5606:

SPEEDCTRL_LIMIT_THRESHOLD in accordance with the mechanical and dynamic features of the axis.

Clear alarm with the RESET key in all channels of this mode group. Restart part program.


© Siemens AG 2005 All Rights Reserved