Battery Back-Up; Backplane Bus; Ventilation/Cooling; Mounting Guidelines And Noise Immunity - Siemens SIMADYN D Hardware Manual

Subracks
2.3.3

Battery back-up

2.3.4

Backplane bus

2.3.5

Ventilation/cooling

Discharged air
2.3.6

Mounting guidelines and noise immunity

EMC
2-28
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The SRT400 subrack does not have a buffer (back-up) battery.
The power supply for the boards and the data exchange is realized via the
backplane bus.
The SRT400 subrack is designed for natural air cooling.
The warm air discharged from the subrack must be able to be dissipated to
the surrounding environment:
 Other mounted components may not restrict the hot discharged air
 When mounting equipment or other components a minimum clearance of
60 mm must be maintained above and below the subrack
If the subrack is mounted in an electrical cabinet, then the cabinet cooling
must be ensured using ventilation slots.
If two subracks are located one above the other then a minimum clearance
of 120 mm must be maintained between the two subracks; an air deflection
plate must be provided so that the hot discharged air of the lower subrack
does not pass through to the second subrack.
 The subrack must be connected to the grounding rail via the connecting
studs through a min. 6 mm² cable which should be kept as short as
possible.
Potential bonding using the PE pin of supply connector is not sufficient!
 All of the cabinets associated with networked SIMADYN D drives must be
connected with one another through a potential bonding conductor of at
least 16 mm².
 All modules must be screwed into the subrack.
 No undamped contactors may be used in a cabinet together with
SIMADYN D.
 If undamped contactors are mounted in a cabinet next to SIMADYN D,
the cabinet must have a metal partition between them.
 The protective contactor is connected at the subrack and at the power
supply. Both components must be at protective conductor potential.
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Industry Automation
Hardware - SIMADYN D
Edition 04.2011
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