Pacific Power Source AMX Series, Operation Manual

Page: 77 / 114

SECTION 3 INSTALLATION
69
3.4.3 THREE PHASE OUTPUT
The wiring requirements for three phase loads (WYE or DELTA) are shown in Figures 3.4.3.1
and 3.4.3.2.
The output power is taken from the terminal block located on the rear panel of the chassis
labeled "
OUTPUT POWER
". This Output Form is set for
FORM 3
when these types of load
are connected.
This power form has a direct-coupled voltage range of 0-135 VAC
l-n
. WYE loads are
connected to " φ
A
," " φ
B
," " φ
C
," and "
N
" terminals as shown in Figures 3.4.3.1 and 3.4.3.2.
In the case of DELTA loads, the "
N
" terminal is not used.
The "
CHS
" terminal
must always
be connected to the chassis of the load. Since the output
is isolated, any output terminal (
direct-coupled output only
) may be connected to chassis.
This allows the user to re-establish a local ground for the output. The output (preferably
Neutral) must be referenced to chassis somewhere. Unless demanded otherwise by a par-
ticular application, Pacific Power Source recommends that a jumper be installed across the
"
N
" and "
CHS
" terminals of the Output Terminal block.
The "
N
" terminal of the Output Power Terminal Block
must always
be connected to the
"
CHS
" terminal when using transformer-coupled outputs. Refer to Paragraph 3.4.4 for
special considerations when using transformer-coupled output forms.
Refer to Paragraph 3.7 for connection of the External Sense Input, when used.
NOTE: It is the user's responsibility to meet all local and national electrical
codes when installing this equipment.
WARNING
LETHAL VOLTAGES ARE PRESENT AT THE OUTPUT TERMINALS OF THIS MACHINE!
REFER OUTPUT CONNECTION TO A QUALIFIED ELECTRICIAN.