BECKHOFF CX1100-09xx UPS - Manual (Page 21)

Commissioning
Embedded PC 19
Discharging time
The measure the time for discharging of the different UPS modules a precision load was connected to the UPS. The
retention time was measured depending of load and switch setting. The test scene is shown in the picture below.
A measurement starts app. 30 seconds after the module signals full charge (CHARGE glows green). The power
supply to the UPS is disconnected by releasing the switch. At the same time a clock is triggered. The measurement
stops when the LEDs at the front of the module extinguish. Several series of measurements have been processed.
The following diagrams show the retention time in relation to switch setting. As load the maximal load for the
CX1100-0900 is used.
Note
The maximal output current for UPS module CX1100-0900 is 550 mA!
For higher output current make use of the UPS modules (CX1100-0910 / CX1100-0920), with bigger
output current.
The maximal output current is not suitable for the CX1020 Embedded PCs. So it is strongly
recommended to make use of the UPS modules (CX1100-0910 / CX1100-0920), with bigger output
current.