Mains And Bus Connection For Ex-Version With Plug/Socket Connector/Terminal Board (Kp) - AUMA MATIC AMExB 01.1 Instructions Manual

Actuator controls AUMA MATIC AM/AMExB/AMExC
Modbus
3.7

Mains and bus connection for Ex-version with plug/socket connector/terminal board (KP)

Figure C-1: Connection
50.0
50.01
51.0
Figure C-2: Disconnection from
the mains
50.0
51.0
51.02
8
When working in potentially explosive areas, observe the
European Standards EN 60079-14 "Electrical installations in
hazardous areas" and EN 60079-17 "Inspection and mainten-
ance of electrical installations in hazardous areas".
For the Ex-plug/socket connector (figure C-1), the electrical mains connec-
tion is made after removing the plug cover (50.0) at the EEx e terminals of
the terminal board (51.0). The flameproof compartment (type of protection
EEx d) remains hereby closed.
.
Check whether type of current, supply voltage, and frequency correspond
.
to motor data (refer to name plate at motor).
Loosen bolts (50.01) (figure C-1) and remove plug cover.
.
Insert cable glands with "EEx e" approval and of size suit-
able for connecting cables. For the recommended cable
glands refer to appendix B, page 19.
(The enclosure protection stated on the name plate is only
.
ensured if suitable cable glands are used).
.
Seal cable entries which are not used with suitable plugs.
No more than max. 2 wires with the same cross section
. may be connected to one terminal.
Remove cable sheathing in a length of 120 – 140 mm.
Strip wires: Controls max. 8 mm, motor max. 12 mm.
.
For stranded wires use end-sleeves according to DIN 46228.
Connect bus cable. Refer to figure (C-3).
The termination resistor for channel 1 is connected through linking the
.
terminals 1 – 4 and 3 – 2 (standard).
Only connect the termination resistor if the actuator is the final device in
.
the Modbus segment.
Connect screen largely to the cable glands. For the recommended cable
glands refer to appendix B, page 19.
If the actuator must be taken from the valve, e.g. for service purposes, it can
be separated from the mains without having to remove the wiring
(figure C-2). For this purpose, the screws (51.02) are removed and the
plug/socket connector is pulled off. Plug cover (50.0) and terminal board
(51.0) remain together.
Flameproof enclosure! Before opening, ensure that no
explosive gas and no voltage is present.
A special parking frame (figure C-2) for protection against touching the bare
contacts and against environmental influences is available.
Short instructions