Mounting - Grundfos CU 401 Instrucciones De Instalación Y Operación

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3. Mounting

Min. 100 mm
1
2
For EMC reasons, the mounting plate must be made
of an electrically conducting material, e.g. iron.
The two mounting forks, one on each side of the
locking screw, must be fixed, e.g. with self-tapping
screws.
8
The CU 401 control unit must be mounted on a 35 mm stand-
ard DIN rail (EN 50022). Recommended height 7.5 mm.
The size of the unit appears in section 16. Dimensions.
All dimensions are stated in mm.
Note:
• Place the CU 401 unit so that there is sufficient space to
mount a modem, CompactFlash card and communication
bus.
• Place the CU 401 unit to the left of the expansion modules.
• Terminator, see section 9. Terminator.
• Fit the internal battery (supplied in separate packaging)
before the CU 401 unit is mounted on the DIN rail.
• Mount the CU 401 unit by first hooking the top of the unit to
the DIN rail and then the bottom.
• Fit the terminals and turn the locking screw to position
"locked".
Use a 6 mm screwdriver for slotted screws.
Locked Slide position
• If the modules are mounted vertically, it is recommended to
fit the end stops supplied to the DIN rail, i.e. below the low-
est module.
• Check the hardware when all modules have been mounted
and the power supply has been switched on. The indicator
light (P) must be green.
Note: If the CompactFlash card has been inserted, the module
mode will change according to the loaded program.
Place CU 401 in a closed control panel so that
access is only possible by means of tools or a key.
Hand out keys only to professional or specially
trained staff.
Unlocked