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1 date 12/12/217 page 1 of 1 SERIES: VMS-2 DESCRIPTION: AC-DC POWER SUPPLY FEATURES compact 2 x 4 high power-density design (CNF version is 2.4 x 4.6 ) universal input range efficiencies up to 93.5% 4th edition medical safeties fan output (+12 Vdc) over voltage, over current, over temperature and short circuit protections covered and open-frame configurations MODEL output voltage (Vdc) output current max (A) output power 1 max (W) ripple and noise 2 efficiency 3 max (mvp-p) VMS VMS VMS Notes: EN IEC Maximum output power of 2 W with 1 CFM forced air or baseplate cooling, 1 W at 22 Vac with convection cooling. 2. At full load, nominal input, 2 MHz bandwidth oscilloscope, output terminated with 47 μf aluminum electrolytic and.1 μf ceramic capacitors. 3. At full load, 25 C, 23 Vac input. 4. All specifications are measured at Ta=25 C, nominal input voltage, and 75% rated output load unless otherwise specified. PART NUMBER KEY TUVRheinland ID xxxxxxxxxx typ (%) VMS-2 - XX - XXX Base Number Output Voltage Chassis: blank = open-frame CNF = covered

2 date 12/12/217 page 2 of 1 INPUT voltage Vac frequency 47 6 Hz under voltage shutdown Vac current at 1 Vac, full load 2.5 A inrush current at 24 Vac, 25 C, cold start 1 A leakage current at 264 Vac.3 ma leakage current (enclosure/ patient) power factor correction meets EN ma no load power consumption.3 W OUTPUT output capacitance at 115/23 Vac, full load 12 Vdc output models 24 Vdc output models 48 Vdc output models 16,4 8,57 1,27 initial set point accuracy at 6% load, 25 C ±2 % line regulation high line to low line at full load ±.5 % load regulation at 6%±4% load ±1 % hold-up time at 115 Vac 1 ms switching frequency 85 khz temperature coefficient ±.5 %/ C fan output LED PROTECTIONS open-frame: 12 Vdc / 3 ma covered: 12 Vdc / 5 ma indicates when power is on over voltage protection recycle ac input to restart 12 Vdc output models 24 Vdc ouput models 48 Vdc output models over current protection hiccup, auto recovery % short circuit protection SAFETY & COMPLIANCE hiccup, auto recovery isolation voltage input to output for 1 minute input to earth ground for 1 minute output to earth ground for 1 minute , 1,5 1,5 isolation resistance 1 MΩ safety approvals safety class EMI/EMC conducted disturbance radiated disturbance 1 harmonic current emissions UL/cUL (3.1 edition), IEC (3.1 edition), EN (3.1 edition) Class I & II EN (4th edition) EN 5511, FCC CFR 47 Part 18, Class B EN 5511, FCC CFR 47 Part 18, Class B IEC :214, Class A, Class D Notes: 1. Need an external 1 mh choke at input for Class II type to pass EN 5511 Class B. μf μf μf Vdc Vdc Vdc Vac Vac Vac

3 date 12/12/217 page 3 of 1 SAFETY & COMPLIANCE (CONTINUED) voltage fluctuations & flicker radio-frequency, continuous radiated disturbance electrical fast transient (EFT) surge conducted disturbances, induced by RF fields power frequency magnetic field voltage dips voltage interruptions IEC :213, Criteria A IEC :21, Criteria A IEC :212, ±.5 kv, ±1 kv, ±2 kv, Criteria A IEC :214, L-N: ±.5 kv, ±1 kv, L-PE, N-PE: ±.5 kv, ±1 kv, ±2 kv, Criteria A IEC :213, Criteria A IEC :29, Criteria A IEC :24, dip: 3% 5 ms, dip: 6% 1 ms, dip >95% 1 ms, Criteria A IEC :24, >95% 5, ms, Criteria B MTBF as per MIL-HDBK-217F, at full load, 25 C 279, hours RoHS ENVIRONMENTAL 211/65/EU operating temperature see derating curves -2 C storage temperature C operating humidity non-condensing 93 % storage humidity non-condensing 93 % DERATING CURVES VMS-2 Output Power vs. Input Voltage (Natural Convection) Input Voltage (Vac) VMS-2-CNF Output Power vs. Input Voltage (Natural Convection) Input Voltage (Vac) VMS-2 Output Power vs. Ambient Temperature (Natural Convection) 2 Input voltage 2~264 Vac 1 Input voltage 9~19 Vac VMS-2-CNF Output Power vs. Ambient Temperature (Natural Convection) 2 Input voltage 1~264 Vac 1 Input voltage 9 Vac

4 date 12/12/217 page 4 of 1 DERATING CURVES (CONTINUED) VMS-2 Output Power vs. Ambient Temperature (2W with 1 CFM air flow) 1 VMS-2-CNF Output Power vs. Ambient Temperature (2W with 1 CFM air flow) 1 Load (%) 6 4 Load (%) VMS-2 Output Power vs. Ambient Temperature (at 115/23 Vac, baseplate cooling, natural convection) 25 2 VMS-2-CNF Output Power vs. Ambient Temperature (at 115/23 Vac, baseplate cooling, natural convection) EFFICIENCY CURVES Vdc Output Efficiency Curve (at 25 C) Vdc Output Efficiency Curve (at 25 C) Efficiency (%) Vac 115 Vac 23 Vac 264 Vac Efficiency (%) Vac 115 Vac 23 Vac 264 Vac Current Load (%) Current Load (%) Vdc Output Efficiency Curve (at 25 C) 9 Efficiency (%) Vac 115 Vac 23 Vac 264 Vac Current Load (%)

5 date 12/12/217 page 5 of 1 MECHANICAL dimensions weight cooling CN1 input connector output terminals fan connector MECHANICAL DRAWING Open-frame units: inch [mm] tolerance: ±.2 [±.5] VMS-2 models: 4. x 2. x 1.4 (11.6 x 5. x 37.6 mm) VMS-2-CNF models: 4.66 x x (117. x 62. x 4. mm) VMS-2 models VMS-2-CNF models external fan or baseplate cooling CN1 mates with JST housing VHR series, JST SVH-21/41T-P1.1 series crimp terminal or equivalent +Vo & -Vo terminals are M3 screws fan mates with JST housing PHR-R55 series, JST R553-PT series crimp terminal or equivalent inch inch g g CN PIN Function ACL 2-3 ACN PE PE FAN PIN Function 1 FAN V+ 2 FAN V- ACN ACL +Vo -Vo PE Air flow direction 1CFM max mm FAN V+ FAN V- LED max

6 date 12/12/217 page 6 of 1 MECHANICAL DRAWING (CONTINUED) Covered units: inch [mm] tolerance: ±.2 [±.5] CN PIN Function 1 ACL 2-3 ACN FAN PIN Function ACN ACL +Vo -Vo FAN V+ 2 FAN V- Air flow direction 1CFM 1mm FAN V+ FAN V- LED

7 date 12/12/217 page 7 of 1 EMI RECOMMENDATION To Meet EN 5511 Class B, Class II VMS-2 VMS-2-CNF Specification T16*1*5C R12 Inductance Table 1 Duplex Winding/ Turns Manufacturers 1 mh TEX-E Ø.65/11T VAKOS

8 date 12/12/217 page 8 of 1 INSTALLATION INSRUCTIONS The VMS-2 series has (4) 3.2 mm diameter mounting holes that can be used in (4) types of installations. Type 1 Mounting from top with spacers (VMS-2 models) Spacer: 5.5 mm diameter max, 5 mm high minimum Screw Size: (4) M3X.5 (head & washer OD not to exceed 6 mm) Mounting torque: 3 kgf-cm Type 2 Mounting from bottom (VMS-2-CNF models) Screw Size: (4) M3X.5 Mounting torque: 3 kgf-cm Type 3 (External Baseplate Cooling) Mounting from top with spacers (VMS-2 models) Heat Sink: 2 x 1 x 1 mm Spacer: 5.5 mm diameter max, 5 mm high minimum Screw Size: (4) M3X.5 (head & washer OD not to exceed 6 mm) Mounting torque: 3 kgf-cm Type 4 (External Baseplate Cooling) Mounting from bottom (VMS-2-CNF models) Heat Sink: 2 x 1 x 1 mm Screw Size: (4) M3X.5 Mounting torque: 3 kgf-cm

9 date 12/12/217 page 9 of 1 INSTALLATION INSRUCTIONS (CONTINUED) Output Terminals Mate with round or Y terminals Terminal Size: (2) M3 Torque: 3 kgf-cm Output Connectors with M3 Screws*2 3(kgf-cm) or Mounting Clearance Allow at least 4 mm side clearance and 5 mm height clearance. If clearances aren t met, the isolation and withstand specifications may not be met. Protective Earth PE should be connected to the earth (ground) terminal of the apparatus otherwise conducted noise and output noise will increase.

10 date 12/12/217 page 1 of 1 REVISION HISTORY rev. description date 1. initial release 12/12/217 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 25 SW 112th Ave. Tualatin, OR Fax techsupport@ CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.