Compax3 device description C3I22T11
96 192-120114 N5 C3I22T11 June 2008
Function description for fieldbus applications:
When opening the safety door or after actuating the emergency power-off switch, it
is ensured via output Q3 and the external control that the Compax3M servo drives
will enter the following state immediately:
"SA2"
(for Profibus) or
"Switched On Disabled"
for fieldbusses based on the CANopen profile
(braking ramp followed by
software switch-off)
In the programmable Compax3 devices (T30, T40), this switch-off is realized with
the MC_power function module. Then after the delay time set on the UE410-
MU4T5 safety control, the STO function in the drives is triggered via the Q4 output.
The servo drives are afterwards in safe torqueless state. The delay time must be
set on the safety control so that the braking ramp in the drives has run off and the
drives are at standstill when the delay time has elapsed.
The described application example corresponds to the stop category 1 according to
EN 60204-1. Together with the external safety switching device, the "Safe Stop 1"
safety function can also be implemented.
A Stop Category 0 in accordance with EN 60204-1 can be implemented, for exam-
ple by setting the delay time on the Emergency power-off module to 0. The Com-
pax3M will then be turned off immediately in 2 channels and will therefore not be
able to generate any more torque. Please take into consideration that the motor will
not brake and a coasting down of the motor may result in hazards. If this is the
case, the STO function in stop category 0 is not permitted.
The acknowledement via the safety control UE410-M is only necessary, if after the
disabling of the STO function, a danger to any person or to the machine could ari-
se.
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