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RCU Series
Regenerative Converter Unit
Instruction Manual
NOTE: REFER ALSO TO APPLICABLE
INVERTER INSTRUCTION MANUAL
Manual Number: HAL1057C
Call 1(800)985-6929 for Sales
hitachiacdrive.com
May 2012
Hitachi America, Ltd.
hitachiacdrive.com
After reading this manual,
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Summary of Contents for Hitachi RCU Series
- Page 1 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com RCU Series Regenerative Converter Unit Instruction Manual NOTE: REFER ALSO TO APPLICABLE INVERTER INSTRUCTION MANUAL Manual Number: HAL1057C After reading this manual, keep it handy for future reference. May 2012 Hitachi America, Ltd. Call 1(800)985-6929 for Sales hitachiacdrive.com...
- Page 2 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES Revision History Rev A, May 2010 – Miscellaneous corrections throughout. Added cooling clearance drawing. Rev B, June 2010 – Significant updated information. Rev C May 2012– Redesigned manual format Call 1(800)985-6929 for Sales hitachiacdrive.com...
- Page 3 User should install Fuse which can be blown fast between output terminals (R, S, T) and main power source of the RCU Spare parts can be delivered only by Hitachi America, Ltd. 1.2 SAFETY INSTRUCTIONS Do NOT make any connections when the RCU is connected to main voltage.
- Page 4 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES Ground Warning Symbols Please be more cautious for the following warning symbols for user’s safety The ground terminal of the RCU = Dangerous Voltage has to be connected to ground wire .
- Page 5 Check the ambient conditions in the storage room before making the first trial run (temperature: -25ºC~+60ºC, relative humidity: 5~95%, condensation is not allowed). Hitachi America, Ltd. will not be responsible for the damage caused by ambient conditions. The period of the product warranty under normal installation and handling conditions is 12 months from the date of installation or 18 months from date of shipment, whichever occurs first.
- Page 6 Id = rated DC input current, In = rated AC output current (100sec per 400sec, or 25%ED) Ic = continuous AC output current, * = ask factory for detail Main Voltage 200V - 230V, 50/60Hz RCU Series Rated power and Rated current...
- Page 7 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America, Ltd. RCU SERIES 2.5 Mounting The RCU should be mounted in a vertical position on the wall or on the back plane of a cubicle. Follow the requirement for cooling. See chapter 3.2 for dimensions.
- Page 8 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES 2.5.2 KE3 Class Model Class Model 400V RCU4022 200V RCU2011 200V RCU2015 200V RCU2022 Figure 2.5-2 KE3 Mounting dimension. 2.5.3 KE4 Class Model 400V RCU4030 Figure 2.5-3 KE4 Mounting dimension.
- Page 9 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America, Ltd. RCU SERIES 2.6 Specification ∼230V ∼460V ( R, S, T ) 3-phase 200V , 380V 45~65Hz Output (AC Source) allowable voltage fluctuation ±10% Main Connection allowable imbalance rate between phase ≤2% Input (DC Source) AC line voltage X 1.414...
- Page 10 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES 3. Installation 3.1 Installation Conditions Please install the RCU in a location satisfying the following conditions. Avoid rain, high temperature and high humidity. Avoid direct sunlight. The RCU should be protected from dirt, metal dust, and welding flame.
- Page 11 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America, Ltd. RCU SERIES 3.2 Cooling Figure 3.2 Installation space The specified space around the RCU ensures proper cooling air circulation. See table 3.2 for dimensions. If multiple units are to be installed above each other, the distance between the units must be b+c and air from the outlet of the lower unit must be directed away from the inlet of the upper unit.
- Page 12 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES 4. Wiring 4.1 Cautions in wiring Connect the ground cable surely. If multiple units are to be installed, Do not make the loop with the ground cables like figure (b) below.
- Page 13 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America, Ltd. RCU SERIES 4.2 Wiring Diagram *) caution 4 *) caution 5 MCCB 3-Phase Power Supply 380~460V 50/60Hz High Speed Fuse *) caution 2 (recommendation) *) caution INVERTER #9-1 INVERTER Multi-function DO1.A...
- Page 14 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES 4.3 Control terminal specific Catalog Terminal Signal Content Contact ouput 1 (common DO1. C A, B contact common terminal terminal) Contact DO1. A Contact output 1 (a-contact) Fault A contact output...
- Page 15 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America, Ltd. RCU SERIES 4.5 I/O Power line and Connection of Fuse For power lines, use copper wire rated 600V, +75ºC. Wire gauge and fuse capacity must be sized based on rated output current of RCU. Please refer to Table 4.2 for the minimum size of power lines (copper) and following fuse capacity.
- Page 16 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES 5. Operation 5.1 Display description Figure 5.1 keypad display description 5.2 Operation Refer to wiring diagram in Chapter 4.2 and connect inverter, RCU, and control I/O Check the RCU P (+) terminal is connected to the inverter DC Link (+) and the RCU N (-) terminal is connected to the inverter DC Link (-).
- Page 17 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America, Ltd. RCU SERIES 5.3 Fault Codes When RCU fault occurs, the Fault LED on the keypad will be lit. According to the fault states, fault code is displayed such as below. When Fault occurs, Reset should be performed by DI5.
- Page 18 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America Ltd. RCU SERIES 7. Check for Maintenance Check Period Check Standards of Check Item Check Point Check Method Part judgment Daily Regular freezing Ambient allowed (ambient temperature, temperature seeing range : –10∼40℃)
- Page 19 Call 1(800)985-6929 for Sales hitachiacdrive.com sales@hitachiacdrive.com Hitachi America, Ltd. RCU SERIES Check Period Check Standards of Check Item Check Point Check Method Part judgment Daily Regular Cooling ○ Dust, Stink Seeing System Strain ○ Wire Seeing Main peeled Circuit 3 phase output...
- Page 20 Hitachi America Ltd. RCU SERIES Hitachi America, Ltd. 50 Prospect Avenue Tarrytown, NY 10591 For Technical Support, contact your Hitachi Distributor, Or visit: www.hitachi-america.us/inverters © Hitachi America, Ltd. Manual Number: HAL1057C – May 2012 Call 1(800)985-6929 for Sales hitachiacdrive.com...