Siemens SINUMERIK 840D Description Of Functions page 196

6 Hydraulics Diagnostics
Remedy
To continue
program
310 608
Explanation
Reaction
Remedy
To continue
program
6-196
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
Valve without valve spool checkback: MD 5530: Reset bit 2;
Check valve connections.
Cancel alarm in all channels of this mode group by pressing RESET key. Re-
start the part program.
Axis %1, drive %2 velocity controller at limit
%1 = NC axis number
%2 = drive number
The velocity controller output has been at its limit for an impermissibly long pe-
riod (MD 5605: SPEEDCTRL_LIMIT_TIME (time for velocity controller at limit)).
Monitoring function is active only if the velocity setpoint is lower than
MD 5606: SPEEDCTRL_LIMIT_THRESHOLD (threshold for velocity controller
at limit).
Mode group not ready
Switchover for entire channel via MD might be possible.
Channel not ready.
NC Stop in response to alarm.
NC Start disable.
The NC switches to follow-up mode.
Alarm is displayed.
Interface signals are set.
S
Is the drive motor blocked?
S
Is the encoder connected? (check encoder cable).
S
Check shield on the encoder cable.
S
Encoder defective?
S
Check the encoder bar number.
S
Replace closed-loop control module.
S
Alter machine data MD 5605: SPEEDCTRL_LIMIT_TIME and MD 5606:
SPEEDCTRL_LIMIT_THRESHOLD to match the mechanical and dynamic
features of the axis.
Cancel alarm in all channels of this mode group by pressing RESET key. Re-
start the part program.
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