XT40.721, XT40.722

– X-Series

Jan. 2007 / Rev. 1.0 DS-XT40.72x-EN All parameters are specified at 72V 13.3A, 3x400Vac (XT40.721) or 3x480Vac (XT40.722),

25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

8/19

Fig. 10-1 Functional diagram

+

-

Active

Transient

Blocker

Input

Filter

Input

Rectifier

Reset

Output

Voltage

Monitor

Over-

Voltage

Protection

Output

Power

Manager

Temp.

Shut-

down

Input

Voltage

Monitor

L3

L2

L1

Semi-

regulated

Power

Converter

Output

Filter

DC-ok

LED

Warning

LED

Shut-down

LED

Fig. 11-1 Front side of XT40.721

Output Terminals

Large screw terminal

+ Positive output

- Negative (return)

output

See chapter 12

“Terminals and

Wiring” to choose

appropriate wire size.

Input Terminals

Screw terminals

L1, L2, L3:

Line inputs

PE (Protective

Earth) input

DC-ok LED (green)

Indicates a normal operation. The LED is on

if the output voltage is higher than 64.8V.

Warning LED (yellow)

-

A steady-state light indicates an output

current higher than the nominal current

and that the internal shutdown timer is

running.

-

A double flash indicates a phase-loss or

too low / too high input voltage.

(XT40.721: < 3x333Vac or > 3x467Vac

XT40.722: < 3x400Vac or > 3x560Vac)

-

A fast flash warns of an impending

temperature shut-down. A shut-down

can be expected within 10 minutes, if

the ambient temperature or the load

current stays constant.

Shut-down LED (red) and reset button

The red LED flashes when the device has

shut down. Pressing the reset button or

cycling the input power (10s required)

initiates a restart. If the fault has been

cleared the device will operate normally.