Functional Block Diagram - HP E1135C Operating And Service Manual

PRODUCT DESCRIPTION

Functional Block Diagram

The mains input is wired directly to the 4-pole Mains Disconnect Switch (Figure 2). From
the Mains Disconnect Switch, current passes through the 4-pole contactor and 15-amp circuit
breakers to the output terminal block. The contactor — controlled by the Control Board —
| switches power on and off to the output terminals. Receptacles (outlets) on the rear panel of the
PDU can be wired to the input terminals (A) for un-switched power (fused at 10 amps) or to the
output terminal block for switched power. Loads can be hard-wired to the output terminal block
or plugged into the receptacles.
Mains
Disconnect
G
T1
T2
T3
N
10A
10A
LL1
LL2
NEU
GND
Outputs Enabled Switch
Emergency Shutdown
(EMO) Switch
Branch In
BLOCK.WPG
Figure 2. HP E1135C PDU Functional Block Diagram
HP E1135C POWER DISTRIBUTION UNIT Rev. C
4
Circuit
Breakers
CB1-CB10
15A
4-Pole
Contactor
J3
J4
(A)
Control
Board
J1 J2
Grn
1 3 7
Outputs Enabled
2 4
Indicator
8
Yel
5 J2
Line/EMO Error
6 9
Indicator
1 3
Branch Out
2 4
Output
Terminal Block
1
3
4
1
5
2
6
3
7
4
8
5
9
6
10
7
11
8
12
9
13
10
14
NEU
16
Outlets/Receptacles
See the text
"Rear Panel Receptacles"
NEU
NEU
01
01
01
01
02
02
02
03
03
03
NEU
NEU