Nidec AD1A008FBBNH, Руководство пользователя и по обслуживанию

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Summary
Preface
P. 6
Chapter 2
P. 17
Technical data
Chapter 5
P. 76
Reception, storage
and installation
Chapter 4
P. 54
General information
Chapter 3
P. 47
Application notes
Chapter 6
P. 115
Options
Chapter 7
P. 129
Preventive maintenance
Chapter 1
P. 15
Overview
and installation diagram
Answer Drives 1000
124
6
6.5.2 SAFETY FUNCTIONS AND RELA
TED LEVEL
• There is a residual risk: with simultaneous fault of two IGBT units,
the motor can be affected, until the intervention of the drive protections
or the fuses, from a small rotation angle (corresponding to 360°/2P P =
number of pole pairs in the case of brushless motors, or to one slot pitch
in the case of induction motors) despite the “SAFE TORQUE OFF” mode
is active.
The STO function integrated in the subsystem represented by the PDS:
• complies with EN 60204-1:2006, paragraph 5.4 “Switch-off devices for
prevention of unexpected start-up”, but not with paragraph 5.3 “Power
supply disconnecting device (insulation)”;
• is suited for the realization of the stop function according to the second
category stop 0 and 1 according to EN 60204-1, paragraph 9.2.2;
• can meet the safety requirements of the harmonized standard
EN ISO 13849-1:2008 Category 3 PL “d” with regard to the restart
interlock depending on the configuration shown in paragraph 2.4 of the
document MIM046 rev.21;
• can meet the safety requirements of IEC 61800-52:2007 SILCL 2
in respect of the restart interlock depending on the configuration shown
in paragraph 2.4 of the document MIM046.
To meet the safety requirements
- of UNI EN ISO 13849-1:2008 Category 3 PL d and IEC 61800-5-2:2007
SILCL 2 it is necessary to create an external safety circuit that respects:
• the redundancy principle relatively to the activation inputs of the two
channels in such a way that the single fault in any of these parts
does not lead to loss of the safety function taking into consideration
failures of common type; for this reason there are two separate and
independent inputs;
• the monitoring of the correct intervention of both channels;
two external feedback contacts were provided for the two independent
relays RL1 (safety) and RL2. Both are in the “open” status in normal
operation and in the “closed” status when the STO function is activated:
is it possible to control the external parity which provides the comparison
between the two outputs. In case a fault is identified, it must be
impossible to restore the circuit.
See paragraph 2.4 “Configuration” of the document MIM046 rev.21,
for more information about:
- actions to be taken if a fault is detected;
- operation times;