Parker EME
Compax3 device description
192-120102 N7 - February 2004 45
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
module (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: This is required before the safety door monitor enables the
Emergency power-off module via Input S11 (by closing the contacts between 23
and 24).
! K2 and K3 via PLC program:
! K2: receives current if Compax3 Device 1 and 2 are currentless (evaluation of
Compax3 status word) = Channel 1 feedback
! K3: receives current if Compax3 Device 1 and 2 are currentless (evaluation of
Channel 2 feedback) = Channel 2 feedback
If S33 and S34 of the Emergency power-off module are briefly connected (pulse)
the contacts will be closed (between 13 and 14 and between 57 and 58).
Supplying current to Compax3
! 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 a fault is still pending on Compax3, it must be previously
acknowledged/reset)
! Power is supplied to K1 and the mains power voltage is switched on by the
feedback output (Channel 2) or by the closed safety door.
! The motors are energized with current.
Summary: Compax3 is not energized with current unless the feedback functions
via K2 and K3 are capable of functioning.
Case 1: Normal access to the hazardous area
Activate Emergency power-off switch
Disconnecting the connection between S11 and S31 /S32 (2 channels) deactivates
the Emergency power-off module and causes Contacts 13 - 14 to open
immediately.
The PLC evaluates this and responds as follows:
Channel 1: Compax3 devices receive the command via the control word
1
to guide
the drive to a currentless state (using the ramp configured in the C3 ServoManager
for "drive disable").
Channel 1 feedback: The Compax3 feedback via the status word
2
is evaluated by
the PLC.
1
Example for the assignment of the control word (CW) to guide the drive to a stop and switch: Profibus: CW.2 = “0” (OFF3) standstill via
ramp (FSTOP3) and then currentless-switch. CANopen: CW.3 = “0” standstill via STOP ramp, then with CW.0 currentless-switch.
2
Example for the assignment of the status word (SW) to guide the drive to a standstill and switch: Profibus: SW.6 = “1” switch-on
disable (motor currentless). CANopen: SW.1 = “02” Ready to Switch on (motor currentless).
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