symbios logic J21971S-0398, Руководство по установке

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Site Requirements
Site Wiring and Power Considerations
Revision A, March 1998 Technical Reference 55
Site Wiring and Power
Considerations
The command module is a nominal 90 - 136 Volt or 198 - 257 Volt,
50/60 Hz unit that meets standard voltage requirements for both
domestic (USA) and international (outside USA) operation. It uses
standard industrial wiring with a line-to-neutral or line-to-line
power connection (
Table 7 ).
Table 7 Site Wiring Voltages
When preparing the site and cabinet for the installation of this unit,
consider the following:
●
AC power source. The AC power source must provide the
correct voltage, current, and frequency specified on the
manufacturer's nameplate. Internal AC distribution boxes (such
as the cabinet's power units) must be able to handle the power
requirements for this unit (
Table 6 on page 54 ). You must have
an independent AC power source for each power supply in the
command module in order to maintain redundancy.
●
Earth ground. There must be an earth ground conductor on the
AC power source.
●
Circuit overloading . Make sure that the power circuits and
associated circuit breakers in both the cabinet and building
provide sufficient power and overload protection. To prevent
possible damage to the unit, isolate its power source from large
switching loads (such as air conditioning motors).
●
Redundant 90-136 Volt AC power. If three or fewer drive
modules are connected to a controller module, use two circuits.
Connect one power supply from each module to one circuit and
connect the other power supply from each module to the other
circuit. If more than three drive modules are connected to a
controller module, use four circuits. Connect half the modules to
% ) ./ *0 1/ *2
3# $#%# $&#%# 3# $#%# $&#%#
! 4
3%
100 90 107 100 90 107
127 114 136 120 104 127
220 198 235
230 207 246
240 216 257
! 4
4
200 180 214 200 180 214
208 180 220
240 208 254