Festo CMMP-AS M0 Series, Руководство пользователя

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Festo — CMMP-AS-...-M0 — 2022-07c
Modification and replacement of the motor controller
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7 Modification and replacement of the motor controller
7.1 Repair or replacement of the integrated safety circuit
Repair or maintenance of the integrated safety circuit is not permissible. If necessary, replace the
entire motor controller.
7.2 Decommissioning and disposal
Observe the local regulations for environmentally appropriate disposal of electronic modules.
7.3 Replacement of the previous CMMP-AS series with the CMMP-AS-…-M0
CMMP-AS
The devices of the previous CMMP-AS series have a safety function STO "Safe Torque Off" perma-
nently integrated in the device in accordance with EN ISO 13849-1, Cat. 3/PL d. The required two-
channel nature of the STO function is achieved via two independent switch-off paths:
–
1st switch-off path: output stage enable via [X1.21], switch-off of the power output stage (blocking
of the PWM signals). The drivers for the power semiconductors are no longer controlled with pulse
patterns.
–
2nd switch-off path: interruption of the power supply to the six output stage power semiconductors
(IGBTs) via [X3] using a relay. The driver supply for the power semiconductors (IGBT optocoupler)
is separated with a relay. This prevents pulse patterns (PWM signals) from reaching the power
semiconductors.
In addition, the CMMP-AS has a potential-free feedback contact ( [X3] pin 5 and 6), which, as a
diagnostic output, indicates the presence of the driver supply.
CMMP-AS-...-M0
The devices of the CMMP-AS-...-M0 series have the safety function STO "Safe Torque Off" in accord-
ance with EN 61800-5-2 SIL3, or EN ISO 13849-1, Cat. 4/PL e. The two switch-off paths are imple-
mented via the control inputs STO-A [X40.1] and STO-B [X40.3]. The potential-free feedback contact
([X40] pin 5 and 6) is also available.
Changes to connection wiring
In order to convert an existing application with STO from CMMP-AS to CMMP-AS-M0, the following
changes in the connection wiring are required:
–
1. Shutdown path:
Retain the wiring of the power stage enable [X1.21] and route it parallel to STO-A [X40.1]. Connect
GNDA [X40.2] to 0 V [X40.8] to connect the reference potential.
–
2. Shutdown path:
Now run the driver supply wiring [X3.RELAY] to STO-B [X40.3].
Connect GNDB [X40.4] to 0 V [X40.8] to connect the reference potential.
–
Feedback contact:
Switch the connection for the feedback contact [X3.5] and [X3.6] to [X40.5] and [X40.6].