Festo EXCM-10-***-E, Translation Of The Original Instructions

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2 Overview
Festo – EXCM-10/-30-...-E-EN – 1612b – English 11
2.3 Monitoring functions
The controller has numerous monitoring functions:
– Monitoring of the logic and load voltage supply
– Current monitoring/I²t monitoring
– Software end-position detection
– Standstill and following error monitoring
2.4 Switch-off functions
The drive can be switched off through the switch-off functions Torque Off - TO and External Stop - ES.
2.4.1 Torque Off - TO
In the case of a requirement of the switch-off function Torque OFF - TO, the energy supply to the mo­
tors is interrupted through switching off of the output stage. The motor brake is not activated thereby.
The status of the driver supply is acknowledged through the two contacts DIAG1 and DIAG2.
2.4.2 External stop - ES
If the External stop - ES switch-off function is requested, the motors are run down in a controlled way
until they are at rest. After the rest state is reached, the motor brakes are activated and the output
stage is switched off.
+24 V
GND
TO
DIAG1
DIAG2
ES
+24 V
Logic voltage
+24 V
Driver supply
Activation/switch-off of the driver supply
Driv
er supply ackno
w­
ledgment contact
Driver supply
monitoring
μP
PWM driver
step
IGB
T output stage
Emer
gency stop interface [X4]
Fig. 2.2 Switch-off functions - block diagram