Isysnet 24VDC Expansion Power Supply, Series A (PSSSE24A)
E105P
4
Wire the 24VDC Expansion Power Supply
Following are wiring instructions for the 24VDC Expansion Power
Supply.
Make sure all connectors and caps are securely tightened to
properly seal the connections against leaks and maintain IP67
requirements.
!
ATTENTION
Male In Connector (Mini 7/8”)
PSSSE24A
(view into connector)
Pin 1 - User Power +
Pin 2 - Adapter Power +
Pin 3 - Adapter Power -
Pin 4 - User Power -
Install the 24VDC Expansion Power Supply
To Install the Power Supply, Proceed as Follows:
1. Using a bladed screwdriver, rotate the keyswitch on the mounting
base clockwise until the number 1 aligns with the notch in the
base.
2. Position the power supply vertically above the mounting base.
The module will bridge two bases.
3. Push the power supply down until it engages the orange latching
mechanism. You will hear a clicking sound when the power supply
is properly engaged. The locking mechanism will lock the power
supply to the base.
Remove the 24VDC Expansion Power Supply
From the Mounting Base
To Remove the Power Supply from the Mounting Base:
1. Put a flat blade screwdriver into the slot of the orange latching
mechanism.
2. Push the screwdriver toward the I/O module to disengage the
latch. The module will lift up off the base.
3. Pull the module off of the base.
Install a Replacement PSSSE24A to an
Existing System
1. Remove the module to the right of the power supply from the
mounting base.
2. If you have not done so already, remove the existing power supply
from the mounting base.
3. Position the replacement power supply vertically above the
mounting base.
4. Push the power supply down until it engages the orange latching
mechanism. You will hear a clicking sound when the power supply
is properly engaged and locked to the base.
5. Place the module to the right of the power supply back onto the
mounting base.
PSSSE24A
24V dc Power Supply
System
Power
Field
Power
A
U
X
P
O
W
E
R
Module Will Bridge Two Bases
Note: User power is the 24VDC power for field devices.
Adapter power is the 24VDC power for PSSSE24A. It is
converted to 5VDC to power isysNet modules.
