Xtralis ICAM IFT-P, Руководство по эксплуатации продукта

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ICAM IFT-P Product Guide
ICAM by Xtralis
8 www.xtralis.com
2.2 Cable Connections
Note: All work carried out on these units should be performed by fully qualified personnel. There are no
user serviceable parts inside.
Caution: Before carrying out any work that requires the removal of any board ensure that the power
supply is disconnected.
A fused junction box may be used as an external disconnect device.
Attention : Avant la pose ou la dépose des batteries, ou tout autre travail imposant la dépose d'une carte,
vérifiez que l'alimentation est débranchée.
Il est possible d'utiliser une boite de dérivation avec fusible comme dispositif d'isolement
externe.
2.2.1 Detector Connections
ICAM IFT-P units are powered by an external 24 VDC power supply.
Access to the interior of the unit is gained by removal of the front cover. This is secured by four screw lock
fixings (one at each of the four corners), releasing these fixings allows the removal of the cover complete with
the ‘self-retained’ fixings.
The Fault Relay and other I/O Module connections are all located on the (i602) printed circuit board
immediately on the front face of the internal metal sub-chassis.
The DC Supply fuse (FS1), TR5 style fuse 250V 2A Time Delay, is located on the (i602) printed circuit board.
A cable entry gland is provided on the rear of the bottom casing for entry of the DC Supply Cabling and the
field wiring cables. This cable gland is fitted so as to provide strain relief. The power supply cable cores should
be fitted individually with ferrite cores, provided for the purpose, close to the cable gland inside the detector
case. The 24 V and 0 V conductors are fed through separate ferrite cores and wrapped round twice to provide
maximum effectiveness.
B
A
C
Legend
A Power Supply Cables
B Two Turns
C Ferrite Core
Figure 2-2: Ferrite Core
A second cable entry hole is provided, fitted with 0.2 to 2 mm grommet, to facilitate the Ethernet cable (if
used).