Hoffmann&Hoffmann Dripmaster EDD-4C, User Manual

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10
24V DC/AC
24VAC/DC
S.B.
LL
PULSE
O.K.
L
N
{
{
{
{
24V DC/AC
Control
cable
Optional
power
cable
115/220 VAC
115/220 VAC
O.K.
J2
Figure 6: Connection box PCB – wiring diagram
Note : Line voltage is either 115 VAC, 60 Hz or 220 VAC, 50 Hz. The unit can be powered by line
voltage or optionally by 24 V (DC or AC).
Note : Each of the signals associated with the control signal terminal block are not polarity dependent
(24VAC/DC, S.B., LL, PULSE, and O.K.).
Note : Avoid daisy-chain connections of the control signal returns – if the ground potentials of each
return differ.
1. Set the power switch SW1 located just below the transformer, for line power (115 VAC or
220 VAC) or 24 V DC/AC according to your requirements. See Figure 5.
2. Route the power cable through a cable strain relief on the left side of the connection box
(Figure 4).
3. Connect the green ground wire to a chassis screw or bolt, preferably using a ring terminal. See
Figure 4.
4. Route the control cable through the right cable strain relief (Figure 4).
5. Connect control cable according to Table 1.