Siemens SPCK421 Especificaciones descargar pdf (Pagina 282)

Appendix

Wiring of mains cable to the controller

282

Siemens AB

A6V10276959

Security Products

18.11.2011

21.12.3 Engineer Access

An Engineer can only access the system if permitted by a ‘Manager’ user type (see

‘Engineer’ attribute in User Rights [➙ 131]) and only for a specified time duration

(see ‘Engineer Access’ in Timers [➙ 160]).

21.12.4 Keypad User Logoff

If no keys are pressed on a keypad for a specific duration (see ‘Keypad Timeout’ in

Timers [➙ 79]), the user is automatically logged off.

21.13 Wiring of mains cable to the controller

Requirements:

A readily accessible approved disconnect device must be incorporated in the

building installation wiring. This must disconnect both phases at the same time.

Acceptable devices are switches, circuit breakers, or similar devices

 Minimum size conductor used for connecting mains is 1.5 mm square

 The circuit breakers must have a maximum rating of 16 A

The mains cable is secured to the metal V shaped bend in the base plate via a tie

wrap such that the metal bend is between the cable and the tie wrap. Ensure that

the tie wrap is applied to the supplementary insulation of the mains cable i.e. the

outer PVC cable sleeve. The tie wrap must be pulled extremely tightly such that

when the cable is tugged there is no movement in the cable relative to the tie wrap.

The Protective Earthing conductor should be fitted to the terminal block in such a

way that if the mains cable should slip in its anchorage, placing a strain on the

conductors, the Protective Earthing conductor will be the last item to take the

strain.

The mains cable must be an approved type and marked HO5 VV-F or HO5 VVH2-

F2.

The plastic tie wrap must be flammability rated V-1.

21.14 Maintenance controller

The system should be serviced in accordance with the service schedule that is in

place. The only replaceable parts on the controller are the mains fuse, standby

battery and the time & date battery (PCB mounted).

It is recommended that during a service the following be checked:

 The Event Log to check if any standby battery tests have failed since last

service – if standby battery tests have failed then the standby battery should be

checked.

 The standby battery should be replaced as per the servicing schedule to

ensure that it has sufficient capacity to hold the system up for the time defined

in the system design. The battery should be physically inspected for any

deformation of the casing or any sign of leakage; if any of these conditions

exist the battery should be immediately replaced.

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