Figure 30: Terminal assignment of support terminals (2-channel)
[XK]
Terminal assignment according to wiring diagram (customer connection)
□
Channel 1
▣
Channel 2
n–1
Fieldbus cable from previous device (input via channel 1)
n+1
Fieldbus cable to next device (input via channel 2)
6.3.4.
Terminal compartment: close
Figure 31: Close terminal compartment
[1]
Cover (illustration shows KT version in type of protection Ex e)
[2]
Screws for cover
[3]
O-ring
[4]
Blanking plug
[5]
Cable gland
[6]
KT-Ex e connection frame
Procedure
1.
Clean sealing faces of cover [1] and connection frame [6].
2.
For design in flameproof enclosure (Ex d): Preserve joint surfaces with an acid-
free corrosion protection agent.
3.
Check whether O-ring [3] is in good condition, replace if damaged.
4.
Apply a thin film of non-acidic grease (e.g. petroleum jelly) to the O-ring and
insert it correctly.
32
SQVEx 05.2 – SQVEx 14.2/ SQRVEx 05.2 – SQRVEx 14.2 Control unit: electronic (MWG)
Electrical connection
ACVExC 01.2 Modbus RTU