B&C Technologies SI Series Industrial - Manual (Page 26)

Never touch terminals or components of the AC drive unless power is discon-
nected and the ”‘CHARGE”’ indicator LED is off. The AC drive retains potential
deadly voltage for some time after the power is disconnected. There are no user-
serviceable parts inside the AC drive. Tampering with the drive will void the
warranty.
Dangerous voltage are present in the electrical control boxes and at the motor
terminals. Only qualified personnel familiar with electrical test procedures, test
equipment, and safety precautions should attempt adjustments and troubleshoot-
ing. Disconnect power from the machine before removing the control box cover,
and before attempting any service procedures.
equipment.
Because this is a vibrating machine, the use of SO cable or similar, with a twist-lock plug, to connect
the machine to main power is recommended. A shielded liquid tight or approved flexible conduit
with proper conductor of correct size installed in accordance with National Electric Code (USA) or
other applicable codes is also acceptable. The connection must be made by a qualified electrician
using the wiring diagram provided with the machine. See the Electrical Connection data Chart for
correct wire sizes.
For personal safety and for proper operation, the machine must be grounded in accordance with
state and local codes and in the USA in accordance with the National Electric Code, article 250-96.
The ground connection must be to a proven earth ground, not to conduit or water pipes.
Do not connect the ground to the neutral (N) leg at the terminal strip (if so equipped).
If a DELTA supply system is used, the high leg should be connected to T, since control voltage is
derived from R and S.
Insure that the control transformer taps are connected in accordance with the incoming line volt-
age. Verify connections as shown on the schematic with each machine.
5.8 Water Connection
Individual hot and cold plumbing lines with individual shut-off valves must be available to the
machine. Hot water should be minimum of 160F (70C). If lower temperature water is used the
machine can be equipped for steam heating to heat the wash solution to desired temperature. Best
performance will be realized if water is provided at a pressure of 30-85 psi (2-7 Bar). Although
the machine will function properly at lower pressures, increased fill times will occur. If the fill
time exceeds 9 minutes, the EL6 control will display a WDT LEVEL EXP (watch dog timer) alarm,
indicating that the machine did not fill quickly enough. This watch dog timer is programmable –
see the EL6 Programming Manual, included with the machine, for further details.
Flush the water system for at least two minutes prior to initial use.
Use flexible hoses and install separate screen filters in the lines to keep rust and other foreign
22