Parker EME
Compax3 device description
192-120114 N5 C3I22T11 June 2008 85
Description
In this chapter you can read about:
Basic functions:.................................................................................................................. 85
Access to the hazardous area ........................................................................................... 85
Basic functions:
Compax3 devices disabled by:
Channel 1: Energize deactivated by PLC due to open contacts of the Emergency
power-off module (13 -14)
Channel 2: Enable input to "0" through open contacts of Emergency power-off mo-
dule (57 - 58)
Activate Emergency power-off module
Before the Compax3 can be placed in operation, the Emergency Power-off module
must be activated by a pulse to Input S33/S34.
Prerequisite:
S3 closed
Safety door closed: only in this case the safety door monitor enables the emer-
gency power off module via two channels
K1 energized via PLC (feedback channel 1: motor not energized)
The feedback contact of all Compax3 devices must be closed (channel 2).
If S33 & S34 of the Emergency power-off module are briefly connected (pulse) the
contacts will be closed (between 13 & 14 and between 57 & 58).
Energize Compax3 (Motor and power output stage)
The PLC enables the Compax3 devices by means of the control word and the
Emergency power-off module enables the Compax3 devices by means of the
Enable input. (if an error is still pending on Compax3, it must be previously
acknowledged/reset)
The motors are energized with current.
Summary: Compax3 is only energized if the feedback functions are capable of
functioning via two channels.
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.
The PLC evaluates this and responds as follows:
Channel 1: The Compax3 devices receive via the control word the command to
guide the drive to currentless state (vi the ramp for "deenergizing" configured in the
C3 ServoManager).
Channel 1 feedback: The Compax3 feedback via the status word is evaluated by
the PLC and passed on to the emergency power-off module via K1.
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 betwe-
en 57 & 58 open, which in turn deactivates the Enable inputs of the Compax3 devi-
ces.
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.
To Next Page
Loading...
Need help?
General
