PowerTec Digimax, Installation And Operation Instruction Manual

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Page 3
DIGIMAX
® ® ® ® ®
Manual
The
DIGIMAX DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
may be installed in any orientation in a clean, dry location. Care should
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 DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
, nor is it advisable
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 DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
has two terminal strips on the back of the unit for customer connections
(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 DIGIMAX DIGIMAX DIGIMAX DIGIMAX
® ® ® ® ®
must be kept away from power wiring.
All relays used in conjunction with, or in the vicinity of, the DIGIMAX
®
must have arc
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 DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
and its wiring to prevent
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
1 115 VAC HOT line
2 unconnected pin
3 115 VAC NEUTRAL
4 CASE GROUND
5 EARTH GROUND
The DIGIMAX
®
must be operated on 115VAC , single phase. Tolerance is +/- 10%.
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 DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
units may be obtained on special order from the factory. The use
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 DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
with one of the case
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.
1.0 INST 1.0 INST
1.0 INST 1.0 INST 1.0 INSTALLA
ALLA
ALLA ALLA ALLATION
TION
TION TION TION