Bernhard ED3000, Руководство пользователя/Инструкция по эксплуатации

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11
EXPRESS DUAL • ED3000
© Bernhard and Company Limited
5. Understanding the Machine
(Continued)
5.3
Machine Functions
The EXPRESS DUAL has 3 separate motors driving the different functions of the machine,
all are controlled from the control panel . These functions are as follows:
5.3.1
Traverse
This motor and the accompanying drive mechanism controls the automatic movement of
the grinding wheel along the mainshaft.
5.3.2
Reel/Spin drive
This motor drives the reel through a flexible shaft driving from a drive mechanism under
the table. It is a three phase motor controlled by an inverter for varying output speed.
5.3.3
Grinding Wheel
A motor situated under the table, drives the mainshaft and grinding wheel at 2200 rpm.
5.3.4
Stop
Pressing the stop button shuts off all 3 motors and locks into the “off” position. None of
the start buttons will operate until the stop button has been unlocked by twisting the knob
counter-clockwise to release it.
NOTE The machine must NOT be stopped when there is contact between the reel and grinding
wheel, except in cases of emergency.
5.3.5
Reset Button
(see also Electrical Fault Finding section)
If the main motor is subject to a voltage drop or overloading, the current being drawn will
rise and a safety device will automatically shut the grinder off. The overload trip switch is
situated behind the blue reset button on the cover of the main electrical control box which
is located on the right hand end of the machine.(looking from the front).
The trip setting will vary with the electrical specification of each machine and is normally
set to the full load current of the motor. If the overload trip has shut off the grinder it can be
reset by pushing the reset button after a few minutes delay. This will allow the grinder to be
re started.
NOTE The reset button and overload are both variable and should be adjusted, if required, as
indicated in the appropriate service bulletins.
The reel drive motor, traverse motor, and VSD inverter (reel spin speed control) are
protected by individual fuses located in the electrical control box and accessible without
the necessity of opening the box.