Siemens SITOP UPS1600 Equipment Manual page 96

Engineering and remote access
3.5 SIMATIC STEP 7
party batteries, the adaptation is based on configuration parameters battery type, typical
ambient temperature and temperature coefficient.
• Temperature coefficient
Relative dependency of the end-of-charge voltage on the ambient temperature
• Duration of the constant floating voltage charging phase
Duration of the constant voltage charging phase
• Charge current
The battery is only charged with maximum selected charge current during the "constant
current" charging phase. When using system batteries, the charge current is automatically
set, and is controlled by the temperature. When using third-party batteries, the
permissible charge current specified by the battery manufacturer must be taken into
consideration.
Further, the following device-dependent values apply:
– SITOP UPS1600 10 A: Maximum permissible charge current 3,000 mA
Derating for T
– SITOP UPS1600 20 A: Maximum permissible charge current 4,000 mA
Derating for T
– SITOP UPS1600 40 A: Maximum permissible charge current 5,000 mA
Derating for T
• Start preserve charge voltage
Voltage value for the start of the preserve charge voltage
• Stop buffering voltage
Buffering is interrupted when this threshold value is fallen below.
• Faulty battery voltage
Batteries are considered to be defective when this threshold value is fallen below.
Charging
Parameter
Deactivate charging function
Maximum permitted charge current [1 mA]
• Deactivate charging function
Shut down battery charging
• Maximum permitted charging current
Max. permissible current to charge the battery
96
> 40 °C or U < 24 V: 2,000 mA
u in
> 40 °C or U < 24 V: 3,000 mA
u in
> 40 °C or U < 24 V: 3,000 mA
u in
Value range
Yes / No
300 ... 5,000 mA
Default setting
No
3,000 mA / 4,000 mA / 5,000 mA
SITOP UPS1600 / BAT1600 / UPS1100
Equipment Manual, 07.2021, A5E37775406-11-76