3.7
Mains and bus connection for Ex-version with plug/ socket connector/ terminal board (KP)
When working in potentially explosive areas, observe the
European Standards EN 60079-14 “Electrical installations in
hazardous areas” and EN 60079-17 “Inspection and mainte-
nance of electrical installations in hazardous areas”.
For the Ex-plug/ socket connector (figure D-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 D-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 18.
(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.
.
Maximum 2 wires with the same cross section may be con-
nected 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-4).
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 Profibus segment.
.
Connect screen largely to the cable glands. For the recommended cable
glands refer to appendix B, page 18.
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-3) for protection against touching the bare
contacts and against environmental influences is available.
8
Actuator controls AUMA MATIC AM/ AMExB/ AMExC
Profibus DP
Short instructions bus connection
Figure C-2: Disconnection from mains
50.0
51.0
51.02
Figure C-3: Parking frame (accessories)
Parking frame
Figure C-1: Connection
50.0
50.01
51.0