MEAN WELL DUPS40 Uninterruptible Module Owner's Manual

Q: What should I do if the LED indicator shows battery over-discharge warning?
A: Recharge the batteries promptly to avoid damage and ensure continuous operation.
Q: Can I connect batteries with capacities outside the specified range?
A: It is recommended to use batteries within the specified 4AH ~ 135AH range for optimal performance and safety.

Q: How can I test the unit for proper functionality?
A: Perform regular diagnostic checks as outlined in the user manual to ensure all functions are working correctly.

Features

Uninterruptible DC-UPS controller
Parallel connection to DC BUS (Power supply + DC-UPS Module + Batteries + Load)

Suitable for 24V system, up to 40A
2A Battery charging current
Allows 4AH~135AH lead-acid various battery capacities
Complete diagnostic and monitoring for DC BUS OK, battery discharge, battery fail
LED indicator for signal status
Protections: Battery reverse polarity protection & Short circuit(By internal detection) / Battery discharae / Over discharge current
Cooling by free air convection
3 years warranty

Applications

Industrial control system
Semiconductor fabrication equipment
Factory automation
Electro-mechanical apparatus

GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx

Description

The DUPS40 is a 40A DIN rail type DC-UPS module, and it is paired with a power supply and an external battery to achieve the backup function. When the AC mains fails or is interrupted, the load will be immediately connected to the battery pack to avoid interruption and to ensure the continuous operation of the entire system (the operating time depends on the capacity of the battery pack). The main features of DUPS40 include: fast installation, suitability for 24V battery packs and various capacities of 4AH~135AH, 2A battery charging current, low voltage disconnect for battery protection and more. The product is suitable for use in data centers, security systems, emergency lighting, wireless communication UPS, central monitoring systems, etc.

Model Encoding

SPECIFICATION

MODEL		DUPS40
DC UPS INPUT	NORMAL INPUT VOLTAGE	24Vdc
	INPUT VOLTAGE RANGE	24 ~ 29Vdc
	RATED CURRENT	40A
DC UPS OUTPUT	VOLTAGE RANGE	21 ~ 29Vdc
	DISCHARGE CURRENT RANGE	0 ~ 40A
	CHARGING CURRENT	2A
BATTERY	NORMAL BATTERY VOLTAGE	24Vdc ( 2 x 12Vdc in series or 1 x 24Vdc)
	BATTERY TYPE	Lead-acid battery
	EXTERNAL BATTERY CAPACITIES	4AH ~ 135AH
PROTECTION	BATTERY POLARITY	Protected by internal detection, No Damage, recovers automatically after fault conduction is removed
	SHORT CIRCUIT	This protection only works when batteries are not connected, No Damage. External fuse is recommended when batteries are connected.
	OVER DISCHARGE CURRENT	42~46A, After 3 sec., unit will cut off battery discharging by relay
	BATTERY DEEP DISCHARGE	Cut-off battery discharging by relay
FUNCTION	RELAY CONTACT RATINGS (max.)	30VDC/1A resistive load
	DC BUS OK	Relay contact: Short when DC voltage between 21~29V(±2%), relay contacts
		LED(Green) : DC BUS OK : light ; DC BUS fail : dark
	BATTERY FAIL Note.2	Short when battery voltage falls below 22V(±2%) or battery failure is observed through the battery test function, relay contacts
		LED(Red): Battery over-discharge warning or battery broken: light ; Battery OK: dark
	BATTERY DISCHARGE	Relay contact: Short when battery in discharge condition, relay contacts
		LED(Yellow) : light : Battery discharging ; dark : Battery is not discharging or discharging current < 2.0A
ENVIRONMENT	COOLING	Free air convection
	WORKING TEMP. Note.3	-30 ~ +70℃ (Refer to “Derating Curve”)
	WORKING HUMIDITY	5 ~ 95% RH non-condensing
	STORAGE TEMP.	-40 ~ +85℃
	TEMP. COEFFICIENT	±0.03%/℃ (0 ~ 60℃)
	VIBRATION	Component:10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6
	OPERATING ALTITUDE Note.4	2000 meters/OVC II
SAFETY & EMC (Note.5)	SAFETY STANDARDS	EAC TP TC 004 approved
	WITHSTAND VOLTAGE	IP/OP – Chassis : 0.5KVac ; IP/OP- Relay : 0.5KVac ; Relay – Chassis : 0.5KVac
	ISOLATION RESISTANCE	IP/OP – Chassis, IP/OP- Relay, Relay – Chassis:>100M Ohms / 500Vdc / 25℃/ 70% RH
	EMC EMISSION	Parameter	Standard	Test Level / Note
		Conducted	—–	—–
		Radiated	BS EN/EN55032(CISPR32)	Class B
		Voltage Flicker	—–	—–
		Harmonic Current	—–	—–
	EMC IMMUNITY	BS EN/EN55035, BS EN/EN61000-6-2, BS EN/EN61204-3
		Parameter	Standard	Test Level / Note
		ESD	BS EN/EN61000-4-2	Level 3, 8KV air ; Level 2, 4KV contact; criteria B Level 2, 4KV air ; Level 1, 2KV contact; criteria A
		Radiated	BS EN/EN61000-4-3	Level 3, 10V/m ; criteria A
		EFT / Burst	BS EN/EN61000-4-4	Level 3, 2KV ; criteria A
		Surge	BS EN/EN61000-4-5	Level 3, 0.5KV(DC input ports)
		Conducted	BS EN/EN61000-4-6	Level 3, 10V ; criteria A
		Magnetic Field	BS EN/EN61000-4-8	Level 4, 30A/m ; criteria A
OTHERS	MTBF	1376.5K hrs min. Telcordia SR-332 (Bellcore) ; 499.5K hrs min. MIL-HDBK-217F (25℃)
	DIMENSION	63125.2113.5mm (WHD)
	PACKING	0.42Kg; 20pcs/9.4Kg/1.57CUFT
NOTE	1. All parameters NOT specially mentioned are measured at normal input(24V) , rated load and 25℃ of ambient temperature. 2. Every 30 seconds, unit will test the battery.If the testing result is faulty, unit will turn on “Battery Fail” relay contact and “Red LED” indicator. 3. Derating may be needed over high ambient temperature. Please check the derating curve for more details. 4. The ambient temperature derating of 3.5℃I1000m with fanless models and of 5℃I1000m with fan models for operating altitude higher than 2000m(6500ft). 5. The unit is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360*720mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests,please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf ) ※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

Block Diagram

Derating Curve

Buffering Time

Discharge Current	Buffering Time(Reference)
Discharge Current	7.5AH	12AH	15AH
2.5A	6500s	14500s	19000s
5A	3000s	7000s	9000s
10A	1200s	2400s	3200s
20A	400s	1100s	1500s
30A	120s	450s	600s
40A	25s	200s	280s