CS1D-CPU

Power Supply Units Section 2-7
2-7 Power Supply Units
2-7-1 Duplex Power Supply Units
82
In a CS1D Duplex System, a duplex power supply can be configured by
mounting a pair of CS1D Power Supply Units on the CPU Rack, an Expansion
Rack, or Long-distance Expansion Rack.
With a duplex power supply, the Backplane’s 5-V DC/26-V DC power supply is
provided from the two CS1D Power Supply Units. Therefore the load per
CS1D Power Supply Unit is approximately 50%.
If there is a breakdown at one of the CS1D Power Supply Units, operation is
continued by using only the other one. In that event, the load at the one
remaining CS1D Power Supply Unit will increase to 100%. (See note 1.) At
the same time, A31602 (duplex power supply error) will turn ON.
Errors at Power Supply Units mounted on any Rack can be checked by means
of A31900 to A31915 (for 5-V/26-V output errors) or A32000 to A32015 (for
primary-side input voltage errors).
Note Even if duplex Power Supply Units are to be used, take into account the
effects if an error occurs at one of the Power Supply Units and calculate the
current consumption under the condition of one Power Supply Unit. If two different
kinds of Power Supply Units are to be used, calculate the current consumption
using the output of the smaller-capacity Power Supply Unit.
2-7-2 CS1D Power Supply Unit Models
Power supply
voltage
100 to 120 V AC, or
200 to 240 V AC
(Switched with short
bar for voltage
switching terminals.)
Power supply
output capacity
5 V DC, 7 A
26 V DC, 1.3 A
Total: 35 W
24 V DC 5 V DC, 4.3 A
26 V DC, 0.56 A
Total: 28 W
24 V DC 5 V DC, 5.3 A
26 V DC, 1.3 A
Total: 40 W
Power supply
output terminals
RUN output Model Weight
No Yes CS1D-PA207R 1,000 g max.
No No CS1D-PD024 550 g max.
No No CS1D-PD025 630 g max.
Note Use the above Duplex Power Supply Units in a CS1D System. The C200HW-
P@@@@ is for the CS Series and C200H, and cannot be used with the CS1D.