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Installation
Motor
P_SI_0012_SW
Fig. 15: Direction of rotation of motor
28
WARNING!
Danger of electric shock
A mains voltage may exist inside the motor or electrical ancil‐
laries.
–
If the housing of the motor or electrical ancillaries has
been damaged, you must disconnect it from the mains
immediately. The pump must only be returned to service
after an authorised repair.
What requires electrical installation?
Motor
n
External fan (identity code option)
n
Frequency converter (identity code option)
n
Stroke control drive (identity code option)
n
Stroke actuator (identity code option)
n
Diaphragm rupture sensor (standard)
n
Stroke sensor (identity code option)
n
Over pressure signalling (identity code option)
n
Heating cartridge (identity code option)
n
Protective temperature limiter (identity code option)
n
Earthing wires (to be installed by the site operator, compulsory in the
n
area at risk from explosion)
WARNING!
ATEX pump in area at risk from explosion
–
Protect power end motors using a suitable motor protec‐
tion switch. Only use motor protection permitted for this
kind of application with Ex"e" motors. (Protection against
heating from overloading)
–
Provide a time-delay residual current device.
–
Ensure that motors are only installed and checked in
areas at risk from explosion by a "recognised compe‐
tent" person.
–
Cleanly earth the motor via the mains cable.
–
Observe the enclosed operating instructions for the Ex
motor, especially the maintenance plan:
–
For ATB type motors: "EAY 90S/4l-11 II 2G Ex e II
T3", page 14.
–
For HEW type motors: "DEx 90 SH/4 K II 2G Ex de
IIC T4", page 37.
–
For ATB type motors: "CD 90 L1 - 4 I II 2G Ex de IIC
T4", page 15.
WARNING!
Only motors with a frequency converter: Danger of electric
shock
On conducting parts of the motor with an integrated fre‐
quency converter and on the lines themselves, there remains
a risk of an electric shock for 3 minutes after switching off the
mains voltage.
–
After switching off allow the device to stand for 3 minutes
before opening the terminal box.
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