PMX_MULTI
User’s Manual
17
Installation
Output Terminal Insulation
The cable and load that are connected to the output terminal (including the sensing terminal) must have an
insulation capacity that is greater than or equal to the isolation voltage of the PMX seres (multiple-output)
with respect to the chassis. Isolation voltage indicates the maximum allowed voltage that appears across
the output terminal of the power supply unit and the protective conductor terminal (chassis terminal).
When the output terminal is not grounded (floating)
The output terminal of the PMX seres (multiple-output) is isolated from the protective conductor terminal. If
you connect the GND wire of the power cord to the ground terminal of the switchboard, the chassis of the
product is set to ground potential.
Pins 1 to 7 of the CONTROL TERMINAL on the rear panel are isolated from the chassis terminal and out-
put terminal of this product. Cables and devices that are connected to these pins must have an insulation
capacity greater than or equal to the isolation voltage of the PMX seres (multiple-output).
WARNING
Risk of electric shock. For safety reasons, even if the output terminal is grounded,
make sure that the insulation capacity of the output terminal (including the sensing
terminal) is greater than or equal to the isolation voltage of this product.
For details on the isolation voltage of each model, see
.
If you cannot obtain a cable with sufficient rated voltage, secure adequate withstand
voltage by passing the cable through an insulation tube with a withstand voltage
greater than the isolation voltage of the PMX seres (multiple-output).
+
–
+
+S
–S
–
+
–
10
11
12
13
6
7
5
4
3
2
1
8
9
AC
INPUT
DC
OUTPUT
J1
SENS
L
N
Isolated from the chassis
terminal and output
terminal
Chassis electric potential
Load
PMX
Vext
