1.1 Customer Connections; Installation - PowerTec Digimax Installation And Operation Instruction Manual

Advanced microprocessor controlled digital speed/ratio controller
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The DIGIMAX
be exercised in making the cutout in the mounting panel, since the pinch bars must be placed
firmly against the mounting panel just outside of the cutout section to hold the unit in place.
The front panel has sealed membrane switches, but the front panel should be protected
against moisture falling directly onto it and seeping into the box around the faceplate.
The front panel should be protected against physical damage, but accidental casual
contact with the front panel is not likely to cause a problem.
The customer connection terminals at the rear of the box require at least 2" (50mm) of
free space behind the box for installation, removal and wiring. It is advisable to not install
high energy switches or electro-magnetic devices next to the DIGIMAX
to run wires carrying high energy in the same groupings as the wires to and from it.

1.1 CUSTOMER CONNECTIONS

1.1 CUSTOMER CONNECTIONS
1.1 CUSTOMER CONNECTIONS
1.1 CUSTOMER CONNECTIONS
1.1 CUSTOMER CONNECTIONS
The DIGIMAX
(see figure 2 on page 5). These terminal strips are removable for ease of wiring and to
facilitate the replacement of the unit, should that become necessary for any reason. The
terminal strips are keyed differently to prevent mix-ups.
All connections except the AC input power are low voltage, low current, DC circuits
which may be susceptible to system electrical noise interference. Directions for wiring and
shielding must be followed exactly for best results (see figure 3 on page 8).
Wires to and from the DIGIMAX
All relays used in conjunction with, or in the vicinity of, the DIGIMAX
suppressors (if they have AC coils) or free wheeling diodes (if they are DC). Keep high power
switching relays and contactors away from the DIGIMAX
interference from arcing and magnetic field fluxes.
BOTTOM TERMINAL STRIP TB1
BOTTOM TERMINAL STRIP TB1
BOTTOM TERMINAL STRIP TB1
BOTTOM TERMINAL STRIP TB1
BOTTOM TERMINAL STRIP TB1
1
2
3
4
5
The DIGIMAX
Frequency range is 48 to 62 hertz. If one side of the supply is grounded, the hot side of the
supply should be connected to terminal 1. The other wire is connected to terminal 3.
230VAC DIGIMAX
of 230VAC power is discouraged due to the noisy nature of this type of power.
Terminal 2 is not connected to anything. It is used for voltage separation on the
terminals. Do not make connections of low-voltage, noise sensitive signals on terminal 2.
Terminal 4 is used for grounding the metal case of the DIGIMAX
mounting screws, and terminal 5 should be solidly grounded to an earth ground. The earth
ground must be tied to a system ground which is tied into the system power ground at a
central location. Where long and (electrically) noisy runs are involved, an earth ground rod
in the vicinity of the drive cabinet is recommended.
The AC supply should not have excessive line noise. The input power to the unit is
filtered, but excessive line gaps or spikes could cause erratic power supplies.
DIGIMAX
Manual
® ® ® ® ®
1.0 INSTALLA
1.0 INST
1.0 INST
1.0 INST
1.0 INST
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
may be installed in any orientation in a clean, dry location. Care should
®
DIGIMAX
DIGIMAX
DIGIMAX
has two terminal strips on the back of the unit for customer connections
DIGIMAX
®
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
115 VAC HOT line
unconnected pin
115 VAC NEUTRAL
CASE GROUND
EARTH GROUND
must be operated on 115VAC, single phase. Tolerance is +/- 10%.
®
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
units may be obtained on special order from the factory. The use
®
ALLA
ALLATION
ALLA
TION
TION
TION
ALLA
TION
must be kept away from power wiring.
® ® ® ® ®
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
DIGIMAX
, nor is it advisable
®
must have arc
®
and its wiring to prevent
®
DIGIMAX
DIGIMAX
DIGIMAX
with one of the case
DIGIMAX
®
Page
3

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