6 Service functions and diagnostic messages
Festo – GDCP-CMMP-M0-HW-EN – 1511c – English 61
6.1.9 Commissioning status
Motor controllers sent to Festo for servicing are loaded with other firmware and parameters for testing
purposes.
Before it is commissioned again at the location of the final customer, the motor controller CMMP-
AS-...-M0 must be parametrised. The parametrisation software queries the commissioning status and
prompts the user to parameterise the motor controller. In parallel, the device signals through the visual
indicator ‘A’ on the 7-segment display that, although it is ready for operation, it has not been paramet
erised yet.
6.1.10 Rapid discharge of the intermediate circuit
When a mains supply failure is detected, the intermediate circuit is quickly discharged within the safety
time specified in EN 60204-1.
Delayed connection of the brake chopper by power class in parallel operation and when a mains failure
occurs ensures that the main energy during rapid discharge of the intermediate circuit is taken over
through the braking resistors of the higher power classes.
But the rapid discharge can be ineffective in certain device constellations, especially
when several motor controllers are connected in parallel in the intermediate circuit or a
brake resistance is not connected. The motor controllers may carry dangerous voltage for
up to 5 minutes after being switched off (capacitor residual charge).
6.1.11 Detection of faults in conjunction with the functional safety engineering
– Discrepancy time monitoring STO
– Driver supply monitoring
6.2 Operating mode and diagnostic messages
6.2.1 Operation and display components
The motor controller CMMP-AS-...-M0 has three LEDs on the front and one 7-segment display for show
ing the operating statuses.
Element LED colour Function
7-segment display – Displays the operating mode and a coded error number
should an error occur è Section 6.2.2
LED1 Green Operating status
Red Error
LED2 Green Controller enable
LED3 Yellow CAN bus status display
RESET button – Hardware reset for the processor
Tab. 6.2 Display components and RESET pushbutton
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