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TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
24 V 60 W 1 Phase, NEC Class 2 / DRP024V060W1N□
Operating Mode
Redundant Operation
In order to ensure proper redundant operation for the power
supply unit (PSU), the output voltage difference between the
two units must be kept at 0.45~0.50 V for 24 V supplies. Follow
simple steps given below to set them up for the redundant
operation:
Step 1.
Measure output voltage of PSU 1 and PSU 2. If PSU 1 is the
master unit, then V
of PSU 1 must be higher than PSU 2. In
O
order to set the output voltage, individually connect the power
supply to 50% of rated load at any line voltage from 85-
264 Vac, and set the PSU 1 and PSU 2 output voltage.
Step 2.
Connect the power supply units PSU 1 and PSU 2 to Vin 1 &
Vin 2, respectively, of the DRR-20N (or 20 A) module shown
on the diagram on the right.
Step 3.
Connect the system load from V
voltage V
from DRR module will be = V
out
power supply) – V
* (in DRR module).
drop
*V
will vary from 0.60 V to 0.90 V (Typical 0.65 V) depending on the load
drop
current and surrounding air temperature.
Parallel Operation
The power supply units (PSUs) can also be used for parallel
operation in order to increase the output power. The difference
in output voltage between the two units must be kept to within
25 mV of each other. This difference must be verified with the
same output load connected independently to each unit.
Parameters such as EMI, inrush current, leakage current,
PARD, start up time will be different
datasheet, when two units are connected in parallel. The user
will need to verify that any differences will still allow the two
power supplies connected in parallel will work properly in their
product/application.
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
13
www.DeltaPSU.com (June 2021, Rev. 08)
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. Please note that output
out
(output voltage of
O
from those on the
**The Signal GND in the DRR module is for the built-in LED and DC OK signals. The Output
GND terminals from the two PSU's do not need to be connected to the Signal GND
terminal.
Fig. 3
Redundant Operation Connection Diagram
Fig. 4
Parallel Operation Connection Diagram
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