Baumuller BUM64A, Manual

Page: 114 / 120

Service time
Manual Single Power Unit BUM64S/A/F
Document no.: 5.01056.03
Baumüller Nürnberg Electronic GmbH & Co. KG
114
of 118
(NO contact), S3 (NC contact) and the status signal contact of the safety relay (X68: 1,2; NC
contact) as well as the contactor K1 (NO contact). If the barrier is not completely closed or a
theoretic impossible condition of the position switch contacts is present (for example S1 and
S2 show a different switch condition or S2 and S3 show the same switch condition or the sta-
tus signal contact of the safety relay is opened/closed, although the status signal contact of
S1 is closed/opened), the control circuit receives no release signal of the monitoring signal.
A missing release signal of the monitoring device leads to a direct switching off of the conver-
ter by means of the control circuit. If the monitoring circuit has recognized an error (for ex-
ample different switch condition of S1 and S2), this if displayed to the operator and the
commissiong of the drive is not possible until the error has been repaired.
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 contactor K1 and the control circuit as well as between the
safety relay input at the converter (X68: 3,4) and the control circuit must not be installed outside
the switching cabinet in a common cable channel.
E.6 Service time
The mechanical service time of the safety relay is at least 1 x 10
7
cycles of operation.
NOTE
All information given in the Operation Manual of the converter, especially the chapters safety
instruction, installation and commissioning, must absolutely be observed.
For the use and the installation of the safety devices the legal and official requirements of the
government safety organizations and of the EU-Directives for safety requirements at installa-
tions and machines (for example EN 60204-1, security of machines, electric equipment and
EN 292-2 security of machines general configuration directives) are valid.