Split Phase Output - Pacific Power Source AMX Series Operation Manual

SECTION 3 INSTALLATION

3.4.2 SPLIT PHASE OUTPUT

The wiring requirements for high range ( 0-270, 0-300V
direct-coupled loads are shown in Figures 3.4.2.1 and 3.4.2.2.
operation is defined to be two voltage vectors (V
separated by 180.
LETHAL VOLTAGES ARE PRESENT AT THE OUTPUT TERMINALS OF THIS MACHINE !
REFER OUTPUT CONNECTION TO A QUALIFIED ELECTRICIAN.
The output power is taken from the terminal block located on the rear panel of the chassis
labeled "OUTPUT POWER." The Output Form is set for FORM 2 when this type of load is
attached.
This power form has a direct-coupled voltage range of 0-270 VAC
112/312/125-AMX) and is well-suited for driving 220 VAC single phase loads. In this case,
the high side of the load is connected to the "φA" terminal (the "L1" terminal on the Model
125-AMX) and the low side of the load to the "φB" terminal (the "L2" terminal on the Model
125-AMX). The "N" terminal is not used with this type of load.
Some loads require three connections (V
referred to as the "Split Phase" type ( not available with the Model 125-AMX). In this case,
the "N" terminal of the output terminal block is used in addition to the wiring described above.
Refer to Figures 3.4.2.1 and 3.4.2.2 for connection details.
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" ("L2" terminal for Model 125-AMX) 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.
special considerations when using transformer-coupled output forms.
Refer to Paragraph 3.7 for connection of the External Sense Input, when used.
NOTE:
WARNING
It is the user's responsibility to meet all local and national electrical
codes when installing this equipment.
) 220 VAC, 1φ, or split phase
AC
and V ) which are equal in magnitude and
a b
-N-V or L -N-L ). This type of load is commonly
a b 1 2
Refer to Paragraph 3.4.4 for
66
Split Phase or 2 Phase
(0-300 VAC
l-l l-l
on