Product | DC UPS module | DC UPS module | DC UPS module |
Power supply, type | 6 A | 15 A | 40 A |
Article number | 6EP1931-2DC21
6EP1931-2DC31 (with serial interface)
6EP1931-2DC42 (with USB interface) | 6EP1931-2EC211)
6EP1931-2EC31 (with serial interface)
6EP1931-2EC42 (with USB interface) | 6EP1931-2FC211)
6EP1931-2FC42 (with USB interface) |
Input L+/M in normal operation | | |
| | Controlled DC voltage | Controlled DC voltage | Controlled DC voltage |
Rated voltage Uinrated2) | 24 V DC | 24 V DC | 24 V DC |
Voltage range | 22 ... 29 V DC | 22 ... 29 V DC | 22 ... 29 V DC |
Connection threshold for battery | 22.5 V DC ± 0.1 V (factory setting), adjustable in the range 22 ... 25.5 V DC (in 0.5 V increments) | 22.5 V DC ± 0.1 V (factory setting), adjustable in the range 22 ... 25.5 V DC (in 0.5 V increments) | 22.5 V DC ± 0.1 V (factory setting), adjustable in the range 22 ... 25.5 V DC (in 0.5 V increments) |
Rated current Iin rated | 6 A + approx. 0.6 A with empty battery | 15 A + approx. 1 A with empty battery | 40 A + approx. 2.6 A with empty battery |
Mains buffering | | |
Line buffering or buffer time | Dependent on connected battery and load current, see selection table battery module and mains buffering times as well as the relevant important information notes! | Dependent on connected battery and load current, see selection table battery module and mains buffering times as well as the relevant important information notes! | Dependent on connected battery and load current, see selection table battery module and mains buffering times as well as the relevant important information notes! |
On/off control circuit | External isolated NO contact required (load max. 15 V DC/max. 10 mA). With an open control circuit, the accumulator is isolated from output L+, thus canceling line buffering. If there is no input voltage, a quiescent current of approximately 0.3 mA is drawn from the battery disconnected from the output. | External isolated NO contact required (load max. 15 V DC/max. 10 mA). With an open control circuit, the accumulator is isolated from output L+, thus canceling line buffering. If there is no input voltage, a quiescent current of approximately 0.3 mA is drawn from the battery disconnected from the output. | External isolated NO contact required (load max. 15 V DC/max. 10 mA). With an open control circuit, the accumulator is isolated from output L+, thus canceling line buffering. If there is no input voltage, a quiescent current of approximately 0.3 mA is drawn from the battery disconnected from the output. |
Methods of setting the buffering time | Adjustableusing DIP switches to a maximum buffering time up to forced shutdown through exhaustive discharge protection (at approx. 19 V) or to a limited buffering time of 5 ... 635 s (in 10 s increments) | Adjustableusing DIP switches to a maximum buffering time up to forced shutdown through exhaustive discharge protection (at approx. 19 V) or to a limited buffering time of 5 ... 635 s (in 10 s increments) | Adjustableusing DIP switches to a maximum buffering time up to forced shutdown through exhaustive discharge protection (at approx. 19 V) or to a limited buffering time of 5 ... 635 s (in 10 s increments) |
Interruption | Adjustableusing DIP switch, either: - Interruption of the output voltage despite returning input voltage for min. 5 s following expiry of set buffering time to support automatic restarting of industrial PCs
- No forced interruption on expiry of the set buffer time
| Adjustableusing DIP switch, either: - Interruption of the output voltage despite returning input voltage for min. 5 s following expiry of set buffering time to support automatic restarting of industrial PCs
No forced interruption on expiry of the set buffer time | Adjustableusing DIP switch, either: - Interruption of the output voltage despite returning input voltage for min. 5 s following expiry of set buffering time to support automatic restarting of industrial PCs
No forced interruption on expiry of the set buffer time |
Output L+/M in normal operation | | |
Rated voltage value Uout rated | 24 V DC (output voltage of SITOP power supply) | 24 V DC (output voltage of SITOP power supply) | 24 V DC (output voltage of SITOP power supply) |
Voltage range | Input voltage Vin less approx. 0.5 V DC | Input voltage Vin less approx. 0.5 V DC | Input voltage Vin less approx. 0.5 V DC |
Startup delay | Approx. 1 s | Approx. 1 s | Approx. 1 s |
Voltage rise | Typ. 60 ms | Typ. 60 ms | Typ. 360 ms |
Output current Iout | 0 ... 6 A | 0 ... 15 A | 0 ... 40 A |
Dynamic current with overload | Electronic current limitation to 1.05 ... 1.4 x Ioutrated for approx. 80 ms, then electronic shutdown of the output with automatic restart attempts (approx. 20 s intervals between restart attempts) | Electronic current limitation to 1.05 ... 1.4 x Ioutrated for approx. 80 ms, then electronic shutdown of the output with automatic restart attempts (approx. 20 s intervals between restart attempts) | Electronic current limitation to 1.05 ... 1.4 x Ioutrated for approx. 80 ms, then electronic shutdown of the output with automatic restart attempts (approx. 20 s intervals between restart attempts) |
Dynamic current with short-circuit | Electronic current limitation to 1.5 ... 3 x Ioutrated for approx. 20 ms, then electronic shutdown of the output with automatic restart attempts (approx. 20 s intervals between restart attempts) | Electronic current limitation to 1.5 ... 3 x Ioutrated for approx. 20 ms, then electronic shutdown of the output with automatic restart attempts (approx. 20 s intervals between restart attempts) | Electronic current limitation to 1.5 ... 3 x Ioutrated for approx. 20 ms, then electronic shutdown of the output with automatic restart attempts (approx. 20 s intervals between restart attempts) |
Output L+/M with battery operation | | |
Rated voltage value Uout rated | 24 V DC (from battery module) | 24 V DC (from battery module) | 24 V DC (from battery module) |
Approximate voltage range | 27 V to 19 V DC at Iout = 0.05 x C x 1/h or 24 V at Iout = 1 x C x 1/h or 23 V at Iout = 2 x C x 1/h (C = total connected battery capacity in Ah), 19 V disconnection threshold for exhaustive discharge protection | 27 V to 19 V DC at Iout = 0.05 x C x 1/h or 24 V at Iout = 1 x C x 1/h or 23 V at Iout = 2 x C x 1/h (C = total connected battery capacity in Ah), 19 V disconnection threshold for exhaustive discharge protection | 27 V to 19 V DC at Iout = 0.05 x C x 1/h or 24 V at Iout = 1 x C x 1/h or 23 V at Iout = 2 x C x 1/h (C = total connected battery capacity in Ah), 19 V disconnection threshold for exhaustive discharge protection |
Output current Iout3) | 0 ... 6 A (permanently permissible) | 0 ... 15 A (permanently permissible) | 0 ... 40 A (permanently permissible) |
Dynamic current with overload | Electronic current limitation to 1.05 to 1.4 x Ioutrated for approx. 80 ms, then latching switch-off of output (restart following return to normal operation) | Electronic current limitation to 1.05 to 1.4 x Ioutrated for approx. 80 ms, then latching switch-off of output (restart following return to normal operation) | Electronic current limitation to 1.05 to 1.4 x Ioutrated for approx. 80 ms, then latching switch-off of output (restart following return to normal operation) |
Dynamic current with short-circuit | Electronic current limitation to 1.5 to 3 x Ioutrated for approx. 20 ms, then latching switch-off of output (restart following return to normal operation) | Electronic current limitation to 1.5 to 3 x Ioutrated for approx. 20 ms, then latching switch-off of output (restart following return to normal operation) | Electronic current limitation to 1.5 to 3 x Ioutrated for approx. 20 ms, then latching switch-off of output (restart following return to normal operation) |
Output +Bat/-Bat in normal operation | | |
Output +Bat/-Bat in normal operation | I-U charging characteristic (first constant current I, then constant voltage U) | I-U charging characteristic (first constant current I, then constant voltage U) | I-U charging characteristic (first constant current I, then constant voltage U) |
End-of-charge voltage V | 26.6 V DC ± 0.1 V (factory setting for +40 °C battery temperature), adjustable in the range 26.3 ... 29.3 V (in 0.1 V increments) | 26.6 V DC ± 0.1 V (factory setting for +40 °C battery temperature), adjustable in the range 26.3 ... 29.3 V (in 0.1 V increments) | 26.6 V DC ± 0.1 V (factory setting for +40 °C battery temperature), adjustable in the range 26.3 ... 29.3 V (in 0.1 V increments) |
Charging current I | Approx. 0.4 A (factory setting), adjustable to 0.2 A or 0.4 A (charging is carried out with closed and open on/off circuit); at a battery voltage of < 6 V (batteries defective), charging is not carried out as a protective measure. | Approx. 0.7 A (factory setting), adjustable to 0.35 A or 0.7 A (charging is carried out with closed and open on/off circuit); at a battery voltage of < 6 V (batteries defective), charging is not carried out as a protective measure. | Approx. 2 A (factory setting), adjustable to 1 A or 2 A (charging is carried out with closed and open on/off circuit); at a battery voltage of < 6 V (batteries defective), charging is not carried out as a protective measure. |
Efficiency/heat loss | | |
at Uoutrated, Ioutrated approx. | 95% / 7 W | 96.2% / 14 W | 97.2% / 28.6 W |
With battery operation, approx. | 94.5% / 8 W | 96% / 15 W | 96.9% / 33.6 W |
Protection and monitoring | | |
Reverse polarity protection | Against polarity reversal on input voltage and batteries | Against polarity reversal on input voltage and batteries | Against polarity reversal on input voltage and batteries |
Overload protection | In accordance with "dynamic current with overload" in normal operation (automatic restart attempts) or in battery mode (restart following return to normal operation) | In accordance with "dynamic current with overload" in normal operation (automatic restart attempts) or in battery mode (restart following return to normal operation) | In accordance with "dynamic current with overload" in normal operation (automatic restart attempts) or in battery mode (restart following return to normal operation) |
Short-circuit protection | In accordance with "dynamic current with short-circuit" in normal operation (automatic restart attempts) or in battery mode (restart following return to normal operation). Built-in (not accessible) 16 A fuse (6 A and 15 A on DC UPS module) or 64 A fuse (40 A on DC UPS module). | In accordance with "dynamic current with short-circuit" in normal operation (automatic restart attempts) or in battery mode (restart following return to normal operation). Built-in (not accessible) 16 A fuse (6 A and 15 A on DC UPS module) or 64 A fuse (40 A on DC UPS module). | In accordance with "dynamic current with short-circuit" in normal operation (automatic restart attempts) or in battery mode (restart following return to normal operation). Built-in (not accessible) 16 A fuse (6 A and 15 A on DC UPS module) or 64 A fuse (40 A on DC UPS module). |
Exhaustive discharge protection | Automatic shutdown when battery voltage falls below approx. 19 V. At a battery voltage of < 6 V (batteries defective), charging is not carried out as a protective measure. | Automatic shutdown when battery voltage falls below approx. 19 V. At a battery voltage of < 6 V (batteries defective), charging is not carried out as a protective measure. | Automatic shutdown when battery voltage falls below approx. 19 V. At a battery voltage of < 6 V (batteries defective), charging is not carried out as a protective measure. |
Monitoring "Wire break in battery circuit" | Alarm signal if battery circuit not closed or if it opens during operation (cyclic check approximately every 20 s) | Alarm signal if battery circuit not closed or if it opens during operation (cyclic check approximately every 20 s) | Alarm signal if battery circuit not closed or if it opens during operation (cyclic check approximately every 20 s) |
Monitoring "Battery replacement required" | Alarm signal flashing at approx. 0.25 Hz repetition frequency (approx. 2 s alarm, approx. 2 s no alarm, approx. 2 s alarm, etc.). Check every 4 hours with 6 ohm load for 1 s if no buffer mode or switch-off has taken place within 4 hours. | Alarm signal flashing at approx. 0.25 Hz repetition frequency (approx. 2 s alarm, approx. 2 no alarm, approx. 2 s alarm, etc.). Check every 4 hours with 3 ohm load for 1 s if no buffer mode or switch-off has taken place within 4 hours. | Alarm signal flashing at approx. 0.25 Hz repetition frequency (approx. 2 s alarm, approx. 2 no alarm, approx. 2 s alarm, etc.). Check every 4 hours with 1 ohm load for 1 s if no buffer mode or switch-off has taken place within 4 hours. No monitoring is performed when the compatibility switch is in the "On" position! |
Monitoring "Battery charge status > 85%" | Indication whether batteries are charged to at least 85% of residual capacity still available depending on aging | Indication whether batteries are charged to at least 85% of residual capacity still available depending on aging | Indication whether batteries are charged to at least 85% of residual capacity still available depending on aging |
Signaling4) | | | |
Normal operation | Green LED (O K) and isolated changeover contact "24 V DC OK/Bat" at setting "24 V DC OK" 5) | Green LED (O K) and isolated changeover contact "24 V DC OK/Bat" at setting "24 V DC OK" 5) | Green LED (O K) and isolated changeover contact "24 V DC OK/Bat" at setting "24 V DC OK" 5) |
Buffering or battery operation (battery supplies load alone or in addition to PS in the case of overload) | Yellow LED (Bat) and isolated changeover contact "24 V DC OK/Bat" at setting "Bat" (de-energized position) | Yellow LED (Bat) and isolated changeover contact "24 V DC OK/Bat" at setting "Bat" (de-energized position) | Yellow LED (Bat) and isolated changeover contact "24 V DC OK/Bat" at setting "Bat" (de-energized position) |
Alarm (buffer not ready, or prewarning at and above < 20.4 V battery voltage) | Red LED (alarm) and isolated changeover contact at setting "Alarm" (= off position).
Causes of the buffer not being ready during normal operation can include: Off status or open on/off control circuit, battery module not connected, polarity reversal or defective battery (battery voltage < 18.5 V) or wire breakage between battery and UPS module. Scanning and thus updating of the signal every 20 s.
Causes for absence of buffer readiness during buffer mode can be: Battery voltage has dropped below 20.4 V DC (= pre-warning before shutdown through exhaustive discharge protection) and shutdown of the battery due to overload, short-circuit, exhaustive discharge protection or expired buffering time. The red LED then goes out. | Red LED (alarm) and isolated changeover contact at setting "Alarm" (= off position).
Causes of the buffer not being ready during normal operation can include: Off status or open on/off control circuit, battery module not connected, polarity reversal or defective battery (battery voltage < 18.5 V) or wire breakage between battery and UPS module. Scanning and thus updating of the signal every 20 s.
Causes for absence of buffer readiness during buffer mode can be: Battery voltage has dropped below 20.4 V DC (= pre-warning before shutdown through exhaustive discharge protection) and shutdown of the battery due to overload, short-circuit, exhaustive discharge protection or expired buffering time. The red LED then goes out. | Red LED (alarm) and isolated changeover contact at setting "Alarm" (= off position).
Causes of the buffer not being ready during normal operation can include: Off status or open on/off control circuit, battery module not connected, polarity reversal or defective battery (battery voltage < 18.5 V) or wire breakage between battery and UPS module. Scanning and thus updating of the signal every 20 s.
Causes for absence of buffer readiness during buffer mode can be: Battery voltage has dropped below 20.4 V DC (= pre-warning before shutdown through exhaustive discharge protection) and shutdown of the battery due to overload, short-circuit, exhaustive discharge protection or expired buffering time. The red LED then goes out. |
"Battery replacement required" | Red LED (alarm) flashing at 0.25 Hz and isolated changeover contact (alarm) switching at approx. 0.25 Hz | Red LED (alarm) flashing at 0.25 Hz and isolated changeover contact (alarm) switching at approx. 0.25 Hz | Red LED (alarm) flashing at 0.25 Hz and isolated changeover contact (alarm) switching at approx. 0.25 Hz |
"Battery charge status > 85%" | Second green LED (Bat > 85%) and isolated NO contact closed (off position = open) | Second green LED (Bat > 85%) and isolated NO contact closed (off position = open) | Second green LED (Bat > 85%) and isolated NO contact closed (off position = open) |
Compatibility switch | Only on 6EP1931-2FC21
The following can be selected using DIP switches: Switch position "Off" - "significant properties analogous to new DC UPS range" or "On" switch position - "analogous to previous DC UPS module 40 (6EP1931-2FC01)". With compatibility switch in "On" position: The output of the alarm signal changes: – the red LED flashes on wire-break between battery module and DC-UPS module with 1/3 Hz and isolated changeover contact (alarm) switching at approx. 1/3 Hz. A battery test does not take place. | Only on 6EP1931-2FC21
The following can be selected using DIP switches: Switch position "Off" - "significant properties analogous to new DC UPS range" or "On" switch position - "analogous to previous DC UPS module 40 (6EP1931-2FC01)". With compatibility switch in "On" position: The output of the alarm signal changes: – the red LED flashes on wire-break between battery module and DC-UPS module with 1/3 Hz and isolated changeover contact (alarm) switching at approx. 1/3 Hz. A battery test does not take place. | Only on 6EP1931-2FC21
The following can be selected using DIP switches: Switch position "Off" - "significant properties analogous to new DC UPS range" or "On" switch position - "analogous to previous DC UPS module 40 (6EP1931-2FC01)". With compatibility switch in "On" position: The output of the alarm signal changes: – the red LED flashes on wire-break between battery module and DC-UPS module with 1/3 Hz and isolated changeover contact (alarm) switching at approx. 1/3 Hz. A battery test does not take place. |
Optional interface and software | | |
Serial interface | Only for 6EP1931-2.C31
Output of all alarm signals and receipt of the "Remote timer start" signal. Technical design: PC-compatible. 8N1 send and receive, 9600 bit/s, 8 data bits, 1 stop bit, no parity bit. Required connection to the PC: 1 : 1 interconnected 9-pole sub D extension cable (connector/socket), only pin 2 (RXD), pin 3 (TXD) and pin 7 (RTS) are required. | Only for 6EP1931-2.C31
Output of all alarm signals and receipt of the "Remote timer start" signal. Technical design: PC-compatible. 8N1 send and receive, 9600 bit/s, 8 data bits, 1 stop bit, no parity bit. Required connection to the PC: 1 : 1 interconnected 9-pole sub D extension cable (connector/socket), only pin 2 (RXD), pin 3 (TXD) and pin 7 (RTS) are required. | Only for 6EP1931-2.C31
Output of all alarm signals and receipt of the "Remote timer start" signal. Technical design: PC-compatible. 8N1 send and receive, 9600 bit/s, 8 data bits, 1 stop bit, no parity bit. Required connection to the PC: 1 : 1 interconnected 9-pole sub D extension cable (connector/socket), only pin 2 (RXD), pin 3 (TXD) and pin 7 (RTS) are required. |
USB interface | Only for 6EP1931-2.C42
Output of all alarm signals and receipt of the "Remote timer start" signal. Technical design: Specification 2.0 with full speed, i.e. 2 Mbps. Supplied with +5 V by DC UPS ("self powered"). Required connection to the PC: Commercially available 4-core shielded cable, 90 Ohm, max. 5 m, USB series "A" connector to PC and USB series "B" connector to DC UPS | Only for 6EP1931-2.C42
Output of all alarm signals and receipt of the "Remote timer start" signal. Technical design: Specification 2.0 with full speed, i.e. 2 Mbps. Supplied with +5 V by DC UPS ("self powered"). Required connection to the PC: Commercially available 4-core shielded cable, 90 Ohm, max. 5 m, USB series "A" connector to PC and USB series "B" connector to DC UPS | Only for 6EP1931-2.C42
Output of all alarm signals and receipt of the "Remote timer start" signal. Technical design: Specification 2.0 with full speed, i.e. 2 Mbps. Supplied with +5 V by DC UPS ("self powered"). Required connection to the PC: Commercially available 4-core shielded cable, 90 Ohm, max. 5 m, USB series "A" connector to PC and USB series "B" connector to DC UPS |
Software | DC UPS software tool (runs under Windows 2000, Windows XP, Windows Vista and Windows 7) for reading and processing signals | DC UPS software tool (runs under Windows 2000, Windows XP, Windows Vista and Windows 7) for reading and processing signals | DC UPS software tool (runs under Windows 2000, Windows XP, Windows Vista and Windows 7) for reading and processing signals |
Control signals | | |
On/off control signal | Buffering is terminated or the battery is disconnected from the output by opening the control circuit or by means of DIP switches on the device (DIP switch must be in "Off" position). All other functions are retained. | Buffering is terminated or the battery is disconnected from the output by opening the control circuit or by means of DIP switches on the device (DIP switch must be in "Off" position). All other functions are retained. | Buffering is terminated or the battery is disconnected from the output by opening the control circuit or by means of DIP switches on the device (DIP switch must be in "Off" position). All other functions are retained. |
"Remote Timerstart" via serial interface or USB | Starts mains buffering for the set buffering time | Starts mains buffering for the set buffering time | Starts mains buffering for the set buffering time |
Safety | | | |
Primary/secondary isolation | No | No | No |
Safety class | Class III (ext. circuit and power supply unit: SELV in accordance with EN 60950 required) | Class III (ext. circuit and power supply unit: SELV in accordance with EN 60950 required) | Class III (ext. circuit and power supply unit: SELV in accordance with EN 60950 required) |
EMC | | |
Emitted interference | Radio interference suppression according to EN 55022, Class B | Radio interference suppression according to EN 55022, Class B | Radio interference suppression according to EN 55022, Class B |
Interference immunity | Interference immunity according to EN 61000-6-2 | Interference immunity according to EN 61000-6-2 | Interference immunity according to EN 61000-6-2 |
Environmental conditions | | |
Ambient temperature during operation | -25 ... + 60 °C with natural convection | -25 ... + 60 °C with natural convection | -25 ... + 60 °C with natural convection |
Transport/storage temperature | – 40 ... + 85 °C | – 40 ... + 85 °C | – 40 ... + 85 °C |
Degree of protection (EN 60529) | IP20 | IP20 | IP20 |
Humidity class | Rated conditions in accordance with EN 60721, climate class 3K3 (relative humidity 5% ... 85% and absolute humidity 1 g/m3 ... 25 g/m3; no condensation) | Rated conditions in accordance with EN 60721, climate class 3K3 (relative humidity 5% ... 85% and absolute humidity 1 g/m3 ... 25 g/m3; no condensation) | Rated conditions in accordance with EN 60721, climate class 3K3 (relative humidity 5% ... 85% and absolute humidity 1 g/m3 ... 25 g/m3; no condensation) |
Approvals | | |
CE mark | Yes | Yes | Yes |
UL/cUL (CSA) approval | cULus-listed (UL 508, CSA C22.2 No.107.1), File E197259 | cULus-listed (UL 508, CSA C22.2 No. 107.1), File E197259 | cULus-listed (UL 508, CSA C22.2 No. 107.1), File E197259 |
Mechanics | | | |
Input connections 24 V DC | 2 screw terminals for 1 ... 4 mm2/17 ... 11 AWG | 2 screw terminals for 1 ... 4 mm2/17 ... 11 AWG | 2 screw terminals for 0.33 ... 10 mm2/22 ... 7 AWG |
Output connections 24 V DC | 4 screw terminals for 1 ... 4 mm2/17 ... 11 AWG | 4 screw terminals for 1 ... 4 mm2/17 ... 11 AWG | 4 screw terminals for 0.33 ... 10 mm2/22 ... 7 AWG |
Battery module connections 24 V DC | 2 screw terminals for 1 ... 4 mm2/17 ... 11 AWG | 2 screw terminals for 1 ... 4 mm2/17 ... 11 AWG | 2 screw terminals for 0.33 ... 10 mm2/22 ... 7 AWG |
Connections for control circuit and alarm signals | 10 screw terminals for 0.5 ... 2.5 mm2/20 ... 13 AWG | 10 screw terminals for 0.5 ... 2.5 mm2/20 ... 13 AWG | 10 screw terminals for 0.5 ... 2.5 mm2/20 ... 13 AWG |
Dimensions (W x H x D) in mm | 50 x 125 x approx. 125 | 50 x 125 x approx. 125 | 102 x 125 x 125 |
Weight, approx. | 0.4 kg (with serial or USB interface: 0.45 kg). | 0.4 kg (with serial or USB interface: 0.45 kg). | 1.1 kg (with serial or USB interface: 1.1 kg). |
Installation | Snaps onto DIN rail EN 60715 35 x 7.5/15 | Snaps onto DIN rail EN 60715 35 x 7.5/15 | Snaps onto DIN rail EN 60715 35 x 7.5/15 |
