6.2.3 Startup Procedures in Battery Mode (Battery Cold Start)
1.
Verify that the battery has been connected, close the battery loop switch, and then the battery voltage is
transferred to the input terminal of the battery.
2.
Please wait for 30 sec after battery path switch is closed, press the battery cold start button (see Figure 6.7
below on the next page for its position) of any module.
3.
When the rectifier starts, start the system according to steps 4 to 6 in Startup Procedures in Normal Mode.
W A R N IN G !
1. Start th e UP S by strictly fo llo win g th e abo ve pro cedu res.
2. P ress an d h o ld th e battery co ld start bu tto n fo r 1s to perfo rm th e abo ve pro cedu res.
3. Do n o t press th e battery co ld start bu tto n befo re switch in g o n th e B CB .
F igu re 6.7 B attery co ld start bu tto n
N o.
D es crip tion
1
Battery cold start button
6.3 Procedures for Transfer Between Operation Modes
6.3.1 Transfer from Normal Mode to Battery Mode
Open the external power switch to isolate the mains power and initiate the UPS on battery mode. To transfer the UPS back
to normal mode, close the external power switch to re-connect the mains power to the UPS. 10 seconds later, the rectifier
restarts automatically, and the UPS works in normal mode.
6 Single UPS Operation Introduction
108
Vertiv™ Liebert® APM Plus User Manual
Summary of Contents for APM 0250kMK16FN02000
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