Baumuller BUM64A, Руководство пользователя

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Application example for machine of category 4
Manual Single Power Unit BUM64S/A/F
Document no.: 5.01056.03
Baumüller Nürnberg Electronic GmbH & Co. KG
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of 118
the monitoring device leads to a direct switching off of the converter by means of the control
circuit. If the monitoring circuit has recognized an error (for example different switch condition
of S1 and S2), this is displayed to the operator and a commissioning of the drive is not pos-
sible until the error has been repaired.
n The status signal contact of the safety relay (X68: 1,2; NC contact) can additionally be eva-
luated by the monitoring circuit (not obligatory).
n The position switches, which are used, must unavoidable have actuated and mechanical con-
nected contacts as well as a dual-port connection (NC contact/ NO contact). The mechanical
operating at the safety device must take place unavoidable, that means tamper-resistant.
The connection cables between the safety relay input (X68: 3,4) and the control as well as be-
tween the impulse release input at the converter (X3:5) and the controller must not be installed
outside the control cabinet in a common cable channel.
E.5 Application example for machine of category 4
Additional procedures when configuring a machine make it possible with a converter of the cat-
egory 3 (EN 954-1) at safety-relevant operations for the “protection against unexpected starting”
also category 4 for the complete drive.
A possibility is the usage of a contactor, with which the external conductors of the motor cable
is short-circuited.