Terminals and wiring, Lifetime expectancy and mtbf – Rockwell Automation 1606-XLP15B Power Supply Reference Manual User Manual

Page 10

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All parameters are specified at 12V, 1.3A, 230Vac input, 25°C ambient and after a 5 minutes run-in time.unless noted otherwise.

10

Rockwell Automation Publication 1606-RM020A-EN-P — March 2014

Bulletin 1606 Switched Mode Power Supplies

11. Terminals and Wiring

All terminals are easy to access when mounted on the panel. Input and output terminals are separated from each
other (input below, output above) to help in error-free wiring.

Input Output

Type

screw terminals

screw terminals

Solid wire

0.5-6mm

2

0.5-6mm

2

Stranded wire

0.5-4mm

2

0.5-4mm

2

American Wire Gauge

20-10 AWG

20-10 AWG

Wire stripping length

7mm / 0.275inch

7mm / 0.275inch

Screwdriver 3.5mm

slotted

or

Pozidrive No 2

3.5mm slotted or
Pozidrive No 2

Recommended tightening torque

1Nm, 9lb.in

1Nm, 9lb.in

Instructions:
a) Use appropriate copper cables that are designed for minimum operating temperatures of:

60°C for ambient up to 45°C and 75°C for ambient up to 60°C minimum.

b) Follow national installation codes and regulations!
c) Ensure that all strands of a stranded wire are fully inserted in the terminal connection!
d) Up to two stranded wires with the same cross section are permitted in one connection point (except PE wire).
e) Do not use the unit without PE connection.
f) Screws of unused terminal compartments should be securely tightened.
g) Ferrules are allowed.

12. Lifetime Expectancy and MTBF

These units are extremely reliable and use only the highest quality materials. The number of critical components such
as electrolytic capacitors has been reduced.

AC 100V

AC 120V

AC 230V

Lifetime expectancy

*)

123

000h 126

000h 125

000h

at

12V,

1.3A

and

40°C

> 15 years

> 15 years

> 15 years

at 12V, 0.65A and 40°C

> 15 years

> 15 years

> 15 years

at 12V, 1.3A and 25°C

MTBF

**)

SN 29500, IEC 61709 3 435 000h

3 723 000h

3 811 000h

at 12V, 1.3A and 40°C

5 633 000h

6 106 000h

6 205 000h

at 12V, 1.3A and 25°C

MTBF

**)

MIL HDBK 217F

1 482 000h

1 534 000h

1 451 000h

at 12V, 1.3A and 40°C; Ground Benign GB40

1 986 000h

2 056 000h

1 944 000h

at 12V, 1.3A and 25°C; Ground Benign GB25

*) The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime

expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated according to the
capacitor’s manufacturer specification. The prediction model allows only a calculation of up to 15 years from date of shipment.

**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a

device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.

The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means that
statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it cannot be determined if the failed unit
has been running for 50 000h or only for 100h.

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