Compax3
device description
Positioning via digital I/Os
74
192-120101 N11 C3I11T11 November 2007
Access to the hazardous area
Activate Emergency power-off switch
The two-channel disconnecting at the emergency power-off switch deactivates the
emergency power-off module – the contacts 13 – 14 will open immediately.
Channel 1:
Compax3 devices receive the command via the Energize input to guide
the drive to a currentless state (using the ramp configured in the C3 ServoManager
for "drive disable").
Channel 1 feedback:
The "Controller Feedback" Compax3 outputs supply current
to Relays K1 and K2.
Channel 2:
After the delay time set in the Emergency power-off module, (this time
must be set so that all drives are stopped after it has elapsed) the contacts
between 57 & 58 open, which in turn deactivates the Enable inputs of the Compax3
devices.
Channel 2 feedback:
Via the series circuit of all feedback contacts, the ”Safe
Standstill” status (all Compax3 devices without current) is reported.
Only if the drives are all at a standstill, the safety door may be opened and the
hazardous area may be accessed.
If the safety door is opened during operation and the emergency-power-off switch
was not triggered before, the Compax3 drives will also trigger the stop ramp.
Caution! The drives may still move.
If danger to life and limb of a person entering cannot be excluded,
the machine must be protected by additional measures (e.g. a
safety door locking).
