EcoRich Features Achieves a % or greater energy saving (in the pressure retained mode, comparison with Daikin products) Drastic energy savings are realized by reducing the motor rotation speed in pressure retained operation. ur original highly efficient SR motor, controller and compact fixed-displacement pump are mounted. High-speed response Combination of special SR motor, which has low rotation inertia and generates high torque at low rotation speed, and high-speed response inverter Response equivalent to or higher than conventional variable displacement pumps (Pressure retained operation operation at flow rate:.1 sec or less) Nomenclature EHU - - A - 3 - - 1 2 3 6 7 8 9 1 2 3 No. 6 Specifications of controller EHU: EcoRich EHU series No code: (In case of EHU1-L, EHU2-L) Without reactor Pump flow rate E: (In case of EHU2-L7/M7, EHU3-M7) With reactor 1: 2: 3: 1 L/min 2 L/min 28. L/min utput characteristic (Refer to the output characteristic diagram in the pressure flow rate characteristics section.) L: M: operating pressure : 7:. MPa 7. MPa (6. MPa with some models) Control method A: Pressure compensated control 7 Design No. (May change according to model changes.) 8 ption symbol No code: V: With fixed relief valve With variable relief valve 9 Non-standard No. No code: Standard IL CLING EQUIPMENT -3
Specifications [Main specifications] EHU1-L EHU2-L EHU2-L7 EHU2-M7 EHU3-M7 Motor capacity (Nominal) Equivalent to.7 kw Equivalent to 1. kw Equivalent to 2.2 kw Equivalent to 2.8 kw Equivalent to 2.8 kw Tank capacity (L) operating pressure (MPa) Notes 1. flow rate in continuous operation at operating pressure: EHU1: L/min EHU2: L/min EHU3: L/min 2. The minimum setting for the PC (pressure compensator) pressure is 1. MPa. If the PC pressure is adjusted, it is necessary to reset the minimum rotational speed and to set the pressure at the safety valve to the PC pressure +. MPa. (With EHUR, the safety valve is adjusted to 7. MPa, and therefore, no adjustment is necessary even when a low PC pressure is set. For details, refer to the Instruction Manual provided separately.) 3. If a bigger tank capacity and higher pressure are required, please use a Super Unit (SUT).. 7. 6. flow rate (L/min) 1. 2. 28. Mass (kg) 3 6 [Rated current] EHU1-L EHU2-L EHU2-L7 EHU2-M7 EHU3-M7 Rated current (A) 2 V Hz 2 V 6 Hz 22 V 6 Hz 7.3 7.9.7 9.1 9.6 7.3 7.9.7 9.1 9.6 Notes 1. Use electric wires with a gauge equivalent to AWG1 (2. to 2. mm 2 ) for power supply connections. 2. EcoRich is equipped with an inverter that incorporates the internal overcurrent protection function and therefore no thermal relay for overcurrent protection is required for EcoRich. If you use a thermal relay, it may malfunction due to the switching operation of the inverter. 3. Power supply voltage: 2 V ( Hz), 2 V (6 Hz), 22 V (6 Hz), Permissible power-supply voltage fluctuation: ±% 7. 7..3 8. 8.7 No-fuse breaker setting (A) 1 Motor run/stop signal Timing chart [Alarm/External input signal] EHU1-L EHU2-L EHU2-L7 EHU2-M7 EHU3-M7 Alarm signal CM-ALMa: Normally closed, opened on occurrence of an error CM-ALMa: Normally open, closed on occurrence of an error Alarm contact switching capacity: DC 2 V,. A (minimum load current ma) (at resistance load) External input signal Motor run/stop Notes 1. The motor can be started or stopped by turning the external input signal (DIN) on and off. (Use an external power supply with a capacity of DC 2±1 V,. A or greater.) 2. EHUR-M7 has two terminals, DIN1 and DIN2, for external input signals, in addition to the signals indicated, to enable selection of the pressure and flow rate settings from among four internal preset patterns (PQ selection). 3. Use electric wires with a gauge equivalent to AWG22 (.3 sq) for alarm and external input signal connections. Pressure Signal FF N FF.1 seconds.1 seconds (Note: The response time varies depending on the volume of hydraulic oil and other factors.) t t -
Pressure Flow rate characteristics utput characteristic (P-Q characteristic) EHU1-L-A-3 16 1 12 8 6 2.. 1. 1. 2. 2. 3. 3... 3 2 2 1 EHU2-L-A-3.. 1. 1. 2. 2. 3. 3... 3 2 2 1 EHU2-L7-AE-3. 1. 2. 3... 6. 7. 8. EHU2-M7-AE-3 EHU3-M7-AE-3 3 2 2 1. 1. 2. 3... 6. 7. 8. 3 2 2 1. 1. 2. 3... 6. 7. 8. Detail of terminal box (EHU1, 2, 3) Terminal block type (For input signals) See Details A. 26-6 (Made by WAG) Terminal block type (For alarm signals) 26-3 (Made by WAG) CM ALMb (Error: Closed) ALMa (Error: pened) Terminal block type 26-6 (Made by WAG) CM2 (For input) DIN2 Unusable DlN1 Unusable DIN (Input of control stop signal) DUT (utput of ready to operate signal) CM1 (For output: Negative common) Details A IL CLING EQUIPMENT PG9 (pening for alarm wiring) TERMINAL BLCK E FAN F2 FUSE AC2V 3.1A F1 DIGITAL I/ CM1 DUT DIN DIN1 DIN2 CM2 PE L3 L2 L1 Terminal block type (For power supply) 7-2 (Made by WAG) PG16 (pening for power wiring) PE PWER L3 L2 L1 ALARM ALMa ALMb CM Wiring layout in the controller Wiring diagram -
INS.CLASS : E V Hz A PF 6 6 Contact Details External dimension diagram EHU1 EHU2 EHU3 Hydraulic circuit diagram C/R M P Rc3/8 T1 T2 DR2 Rc1/2 Rc1/2 Rp1/2 DR1 Rp1 Above oil level DR1 Rp1 Above oil level T1 Rc1/2 T2 Rc1/2 1. (6) 7 19 13 6 M M12 DR2 Rp1/2 Above oil level DR2 T1 T2 DR1 6 13 19 3 (336) MPa Dimension table code EHU1-L EHU2-L EHU2-L7 EHU2-M7 EHU3-M7 a 126 96. 76. b 83 8 9 8 (17) 1 a P Rc3/8 (Use a rubber hose with a working pressure of MPa or more.) 2 - M8 hoisting bolts Exhaust direction DR1 DR2 T1 T2 7.7 (7) MPa EC RICH EHU2-M7-AE- Safety caution nameplate HIGH L Upper limit LW 7.6 L Lower limit 3. 2 281 (73) (b) 26. 2 26. 33. 28 18. -φ installation holes 3 71 16 12. 3 12. 6 il sampling port/oil drain port (M12 hexagon head bolt) Pressure indication and operation panel For the inside of the control unit, refer to the controller wiring layout. -6
ptional parts (For EcoRich and EcoRich R) Level switch E-DLSN-13L-A- E-DLSN-13L-B- peration voltage operation current Contact resistance Protection class 1 Ω DC 2 V. A IP6 Alarm for oil temperature and action EHU1/2/3 (with L tank) EHU1R/3R (with 2 L tank) EHUR (with 3 L tank) 7.3 L or less 13 L or less 21 L or less Closed pen CE standard Applicable model Directly mountable on EHU1-L (.7 kw) to EHU3-M7 (2.8 kw) at drain port DR2 (Rc1/2) Mountable on EHU1R/3R (with 2 L tank) at drain port DR2 (Rc3/) with a bushing (3/ 1/2) Directly mountable on the EHUR-M7 super unit at the option port (Rc1/2) E-DLSN-9L-A- E-DLSN-9L-B- 1 Ω DC 2 V. A IP6 EHU1R/3R (with L tank) 7.2 L or less Closed pen Mountable on EHU1R/3R (with L tank) at drain port DR2 (Rc3/) with a bushing (3/ 1/2) Temperature switch E-MQT83PD-L6X1- E-MQT83PD-L6X1-1- peration voltage VAC 2 VDC operation current 2 AAC madc Contact resistance 3 mω Protection class IP6 CE Alarm for oil temperature and action standard Temperature rise over 6 C Temperature differential from 7 to 13 C pen Applicable model Mountable on EHU1-L (.7 kw) to EHU3-M7 (2.8 kw) at drain port DR1 (Rc1) with a bushing (1 3/8) or DR2 (Rc1/2) with a bushing (1/2 3/8) Mountable on EHU1R/3R at drain port DR2 (Rc3/) with a bushing (3/ 3/8) Directly mountable on the EHUR-M7 super unit at the option port (Rc3/8) Mountable on EHU1R/3R (with L tank) at drain port DR2 (Rc3/) with a bushing (3/ 3/8) Handling Ambient conditions 1. Ambient temperature: to 3 C, Ambient humidity: 2 to 8% RH, Altitude: 1, m, To be used indoors Hydraulic oil 1. Mineral-oil base hydraulic oil should be used. Use of other hydraulic oils (e.g. hydrous/synthetic) is prohibited. 2. Use hydraulic oil equivalent to IS VG32 to 68 and operate the unit within an oil viscosity range from 1 to mm 2 /s and a tank oil temperature from to 6 C. 3. il cleanliness should be within NAS class. Installation and piping 1. To transport EcoRich, use eyebolts at the top of the unit. Attach the bolt and spacer for protecting the rubber vibration isolator. If transportation is undertaken without the bolt and spacer, the rubber vibration isolator may be damaged and the EcoRich may fall. Take care not to subject the unit to strong impact due to dropping or a collision during transportation. 2. The unit is a stationary type. Fix it with bolts on a level location that is free of vibration. 3. Do not place any obstacles to oil cooler air intake and exhaust within a distance of mm from intake and exhaust vent of the motor and the oil cooler. Install the unit at a location with good air flow so that heated air can be vented.. Use hoses for piping to provide flexibility.. Before operating the unit, be sure to remove the bolt and spacer for protecting the rubber vibration isolator. If you fail to do so, the noise and vibration may be excessive. Electric wiring 1. When the wire is connected from the power source, the required protectors should be installed and the wiring must conform to the applicable laws, regulations, and standards. (For example, the unit should be equipped with an electric circuit conforming to European Standard EN62-1 to protect electrical circuits from over current, in the event of short circuits for example, and to protect the control unit from overloading.) The unit should be equipped with an earth leakage breaker to prevent electric shock and other hazards. 2. Securely connect wires with appropriate gauges in accordance with the wiring diagram on the back of the terminal cover. Be sure to provide a ground connection with a grounding resistance of Ω. 3. Use a commercial power supply for the power source. The use of an inverter power supply may cause burn damage to the unit. ther precautions 1. If a failure occurs in the hydraulic unit, the system indicates an alarm and terminates. 2. If a failure or malfunction of this unit is expected to cause death or pose a danger to human beings, adopt appropriate safety measures in the facilities. If this unit is applied in an important facility, also adopt appropriate safety measures in the facility to ensure that a failure of the equipment will not lead to a serious accident or loss. 3. It takes to 13 seconds for this hydraulic unit to start up after being switched on. During this time, the alarm signal circuit is open. This is not abnormal.. Do not turn the main power supply N/FF frequently to stop the unit. It may damage inverter components. IL CLING EQUIPMENT -7