3-25
7.1
95-8533
To measure the battery charging current, connect a
digital voltmeter to terminals 1 and 2 of terminal block
J2. The voltmeter will read 1 millivolt (0.001 volt) for each
2 amperes of current.
Current in Amperes = Meter reading in millivolts x 2
Example: A reading of 50 millivolts indicates a charging
current of 100 amperes.
EQP2120PS(–B) POWER SUPPLY
AND REDUNDANCY MODULE
INSTALLATION
WARNINg!
ALWAYS follow all safety notes and instructions
when installing power supply or module!
WARNING!
Make sure a.c. power is OFF at main a.c. breaker
before beginning power supply installation!
IMPORTANT!
Power supplies require unrestricted air flow for
proper cooling.
MOUNTING
Mount the power supply and Redundancy Module in a
Nationally Recognized Test Laboratory (NRTL) labeled
enclosure. Refer to the “Specifications” section for
mounting dimensions. Refer to power supply and
module manufacturer's instruction manual provided with
support documentation received with the EQP system
for additional installation details and instructions.
WIRING
CAUTION!
The power supply should be properly connected to
an earth ground! A ground wire MUST be connected
to the power supply units’s ground terminal!
1. Connect external wiring to the appropriate points
on Power Supply. Refer to Figure 3-23 for terminal
locations.
NRTL CABINET
–
+
–
–
–
–
+
+
+
+
POWER DIST CKT #1
POWER DIST CKT #2
POWER DIST CKT #3
POWER DIST CKT #4
NOTES
1. AC INPUT IS AUTO-SELECTABLE FOR 120–220 VAC, 60/50 Hz (CUSTOMER SUPPLIED).
2. PRIMARY SOURCE OF INPUT SUPPLY IS CONNECTED TO ONE POWER SUPPLY
AND SECONDARY SOURCE IS CONNECTED TO THE OTHER.
3. A MAXIMUM OF 8 REDUNDANT PAIRS CAN BE CONNECTED TO INPUT AC POWER.
4. THE SECONDARY SOURCE IS CONTINUOUSLY POWERED.
A2445
L
N
G
–
–
+
+
24 VDC
OUTPUT
POWER SUPPLY
AC POWER
See Notes 1 & 2
L
N
G
–
–
+
+
24 VDC
OUTPUT
POWER SUPPLY
AC POWER
See Notes 1 & 2
IN
OUT
REDUNDANCY
MODULE
1
2
CB
CB
Figure 3-23—Wiring Connections for an EQP2120PS(-B) Power Supply (Typical)
Summary of Contents for DET-TRONICS 95-8533
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