Alfa Laval IsoMix External Drive, Инструкция по эксплуатации

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4 Installation
4.6 Installation, electrically
- Operation by unauthorized personnel may endanger personnel and property.
- Treat all electrical equipment as powered.
- Switch off the power before maintenance and repair.
- The electrician must be certified according to local regulations and with at least 3 years’ experience from similar types of
installations.
- The electrician must have proven skills in reading and working from drawings and cable lists.
- The electrician must have knowledge of local safety regulations for power and automation and furthermore making sure that
any work carried out is safe for personnel and property before the equipment is put back into operation.
If you need assistance or have questions – please contact Alfa Laval.
- The Alfa Laval IsoMix External Drive (IMXD) comes with a pre-programmed frequency converter that is cabled to the
gear motor.
- The frequency converter requires a power supply as indicated on the nameplate.
- We recommend installation of a service switch at the machine to secure the personnel during service work.
- We recommend connecting the PTC thermistor to the Frequency converter.
- Perform a visual inspection of the direction of rotation. The direction required is indicated on the washer attached to the
drive shaft (underneath the motor).
If the pre-programmed frequency converter is NOT used:
- The motor should be secured with either a motor protection or a frequency converter.
- Current limit in frequency converter or motor protection shall be set to 35% of the prescribed current on motor.
- A soft starter, or a frequency converter, with a start ramp up time of min. 8 sec shall be setup.
- Output: Minimum Hz 20, maximum Hz 40.
- Setup that shuts down power to motor if not rotating for 30 sec.
NOTE: We recommend installation of safety switches on all hatches to the tank, that ensures that the IMXD and supply
pumps stops if a hatch is opened.
- Rotation of machine must be counter-clockwise looking from the tank bottom and up. Otherwise the machine may
unscrew itself.
- To check direction of rotation start gear motor for short period of time (max 1 sec).
*) Rotation direction
1)
Rotation
direction*)
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