Publicité
Les langues disponibles
Les langues disponibles
6 – Wiring
6-7 AC Input/Output Wiring (Single UPS—SUS)
3
•
Connect the UPS system's primary grounding terminal
to your facility's earth ground with a 4 AWG (25 mm²)
minimum equipment grounding conductor cable. Keep
the EGC cable connected at all times after installation.
•
4
Confirm the phase of each cable, then connect the cables
according to the UPS system terminal block diagram in
Section
6-3. See
Cabling should be protected by flexible conduit and
routed through the appropriate knockouts in the terminal
block cover. Warning: Observe proper phase rotation
by connecting R to R, S to S, T to T and N to N.
Failure to observe proper phase rotation will damage
the UPS system and create a risk of personal injury
and property damage.
•
5
Replace the UPS system's terminal block cover.
6-8 AC Input/Output Wiring: Parallel Configuration – 2x MUS (Multiple Unit System)
Parallel Configuration – MUS Warnings:
• The total cable length for each UPS must be within 10% of each of the other parallel-configured UPS in order to prevent
unbalanced load sharing between the individual UPS. (IP1 + OP1 = IP2 + OP2 = IP3 + OP3 = IP4 + OP4, minimum/maximum
deviation must be < 10%).
• Parallel configurations are supported for 2, 3, or 4 UPS units only. Do not attempt to configure more than 4 UPS systems via
parallel configuration.
• Each UPS system to be parallel configured for either N+1 redundancy or capacity, must have the same rating, kVA capacity, and
system and power module level firmware version (see Section 10-6). Attempting to configure dissimilar UPS systems may be
inhibited or may cause damage to the UPS systems and create a risk of personal injury and property damage.
• Each UPS must have its parallel group set to 2 and a different "Parallel ID" that indicates the UPS systems are operating in
parallel (see
Section 10-5-5
•
1
Follow the steps in
•
Each UPS is shipped with (1) parallel configuration cable included. Connect each UPS parallel communication port(s) as shown and select
2
the correct position of the parallel port dip switches (either both ON (down) or both OFF (up) as shown in the diagram
DASHED LINES INDICATE USER-SUPPLIED
PARTS AND CABLES.
1
12-212-93-3141.indb 15
All manuals and user guides at all-guides.com
(continued)
Section 6-5
for cable size requirements.
for more details).
Section
6-7, wiring the UPS systems as shown in the diagram
(continued)
+
R
S
T
N
AC Input
Battery
Grounding Terminals
1
.
15
N
–
R
S
T
Output
.
1
12/28/2012 11:17:25 AM
1
2
N
3
4
5
6
7
8
9
10
11
12
13
14
Publicité
