6
Modification and replacement of the motor controller
Festo – GDCP-CMMP-AS-M0-S1-EN – 1412a – English
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6
Modification and replacement of the motor controller
6.1
Repair or replacement of the integrated protection circuit
Repair of the integrated protection circuit is not permissible. If required, exchange the
complete motor controller.
6.2
De-commissioning and waste management
Observe the local regulations for environmentally appropriate disposal of electronic
modules.
6.3
Replacing the previous CMMP-AS series with the CMMP-AS-…-M0
CMMP-AS
The devices of the previous CMMP-AS series have an integrated STO “Safe torque off ” in accordance
with EN ISO 13849-1, Cat. 3 / PLd. The two-channel arrangement required by the STO function is
achieved via two separate switch-off paths:
–
1st switch-off path: Output stage enable via [X1.21], disconnection of the power output stage
(blocking of PWM signals). The power semiconductor drivers are no longer activated by pulse pat
terns.
–
2nd switch-off path: Interruption of the power supply to the six output stage power semiconductors
(IGBTs) via [X3] by means of a relay. The driver supply for the power semiconductors (IGBT opto
couplers) is disconnected by means of a relay. This prevents the pulse pattern (PWM signals) reach
ing the power semiconductors.
The CMMP-AS also has a floating feedback contact ( [X3] Pins 5 and 6) which, as a diagnostics output,
indicates the presence of the driver supply.
CMMP-AS-…-M0
The equipment in the CMMP-AS-...-M0 series features an STO “Safe torque off ” function in accordance
with EN 61800-5-2 SIL3 and EN ISO 13849-1, cat. 4 / PL e. The two switch-off paths are realised via
control ports STO-A [X40.1] and STO-B [X40.3]. The potential-free acknowledgement contact
( [X40] pin 5 and 6) is also present.
Modifications to the connection wiring
Converting an existing application with STO from CMMP-AS to CMMP-AS-...-M0 requires the following
modifications to be made to the connection wiring:
