SITOP DC-UPS Module 24 V DC / 6 A with USB (6EP1931-2DC42) CAN Electric — Industrial Automation Parts Supplier

A buffer module, not a battery

The 6EP1931-2DC42 is the control element of the SITOP DC-UPS system: it is inserted between a stabilized 24 V power supply and the load and connects to an external SITOP battery module – 1.2, 2.5, 3.2, 7 or 12 Ah. When the upstream supply dips below the set threshold, the module seamlessly takes over from the battery.

Buffering tuned to the application

The buffer cut-in threshold is adjustable from 22 to 25.5 V in 0.5 V steps (preset 22.5 V), and the charge current is set to 0.2 A or 0.4 A by DIP switch. A battery undervoltage cut-off at about 19 V protects the battery from deep discharge, and LEDs report OK, battery mode and alarms.

Configured and monitored over USB

The USB interface connects to the free Siemens PC tool for parameterization, diagnostics and event logging – buffer events, battery state and load data are recorded for maintenance analysis, without an extra fieldbus integration.

Data per the Siemens catalogue entry and product documentation; confirm the current data sheet before mounting the module or sizing the 24 V load.

Clean separation of buffer and battery

Because the battery module is a separate order item, buffer time is sized per application – from minutes with a 1.2 Ah module to substantially longer with 7 or 12 Ah – and replacement never touches the control electronics.

Diagnostics that survive the event

The USB interface and event logging record every buffer occurrence with battery and load data, so a recurring grid problem can be diagnosed instead of merely survived.

Gentle on the battery

Selectable 0.2 A / 0.4 A charge current, an adjustable cut-in threshold and the approx. 19 V deep-discharge cut-off extend the service life of the lead-acid battery modules.

Battery-based DC-UPS modules cover buffer times from minutes upward, while the capacitor-based UPS500S bridges seconds maintenance-free; the battery module itself is always a separate order item.

The module connects downstream of a stabilized 24 V DC supply – typically a SITOP PSU – and upstream of the critical loads, with a SITOP battery module 6EP1935-6MC01 (1.2 Ah), 6MD31 (2.5 Ah), 6MD11 (3.2 Ah), 6ME21 (7 Ah) or 6MF01 (12 Ah) providing the energy. For 15 A or 40 A loads, the 2EC42 and 2FC42 variants of the same family apply.

• Email sales@can-electric.com with the order number, quantity, delivery country, and whether the power module equips a new cabinet or replaces a failed unit.
• State the condition you need — new, new-surplus or refurbished is written on the quote, never implied.
• Prices are USD and ships go out from Hong Kong by DHL; availability is confirmed per order rather than taken from a catalogue status.