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Part No. Z1-004-632, IA004571 Jun. 2009 OPERATION MANUAL REGULATED DC POWER SUPPLY PMC-A SERIES TYPE I PMC 18-1A PMC 35-0.5A PMC 18-2A PMC 35-1A PMC 18-3A PMC 35-2A TYPE II PMC 18-5A PMC 160-0.4A PMC 35-3A PMC 250-0.25A PMC 70-1A PMC 350-0.2A...
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“Kikusui Part No.” given on the cover. This manual has been prepared with the utmost care; however, if you have any questions, or note any errors or omissions, please contact Kikusui dis- tributor/agent. Reproduction and reprinting of this operation manual, in whole or in part, without written permission is prohibited.
Power Requirements of this Product Power requirements of this product have been changed and relevant sections of the Operation Manual should be revised accordingly. (Revision should be ✓ applied to items indicated by a check mark Input voltage The input voltage of this product is Vac, and the voltage range is Vac.
Safety Symbols For the safe use and safe maintenance of this product, the following symbols are used throughout this manual and on the product. Note the meaning of each of the symbols to ensure safe use of the product. (Not all symbols may be used.) Indicates that a high voltage (over 1 000 V) is used here.
Safety Precautions The following safety precautions must be observed to avoid fire hazards, electric shock, accidents, and other failures. Keep them in mind and make sure to observe them. Using the product in a manner that is not specified in this manual may impair the protection functions provided by the product.
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• To maintain the performance and safe operation of the product, it is recommended that periodic maintenance, inspection, cleaning, and calibration be performed. Service • Kikusui service engineers will perform internal service on the product. If the product needs adjustment or repairs, contact your Kikusui distributor/agent. PMC-A...
How to Read This Manual Preface Thank you for purchasing the PMC-A Series regulated DC power supply. This manual is intended for first-time users of the PMC-A Series (hereafter abbreviated as: the PMC-A). It gives an overview of the PMC-A and describes various settings, operation, maintenance, safety precautions, etc.
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Notations used in this manual The following marks are used with the corresponding explanations in this manual. Indicates an imminently hazardous situation which, if WARNING ignored, could result in death or serious injury. Indicates a potentially hazardous situation which, if CAUTION ignored, may result in damage to the product and other property.
Function index Preparation Usage scenarios Manual sections page Confirming accessories 2 Installation and Preparation Rated input values - quantities 2.5 Connecting the Power Cord 7 Specifications What may be used with power supply 3.2 Connecting the Load connected to load Precautions for connecting to remote sensing 4.5 Remote Sensing lines...
Front panel Press this indicated area Name Description page Depressed position is ON POWER switch Depressed position is ON. When this switch OUTPUT switch is turned OFF, the OUTPUT of the power Ω supply is at high impedance (several k Lights when the output is ON.
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Name Description page Lights when operating in constant current C.C LED (CC) mode. (Red) Sets the output voltage. (10 turns) VOLTAGE knob Sets the output current. (10 turns) CURRENT knob Red : + (positive) terminal OUTPUT terminal White : - (negative) terminal Connect either output terminal to the GND terminal using the short bar unless your application requires the power supply output...
Rear Panel KIKUSUI ELECTRONICS CORP. WARNING FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE AND RATING FUSE. CAUTION TO AVOID ELECTRIC SHOCK, THE AC POWER CABLE PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND. DO NOT REMOVE COVERS, REFER SERVICING TO QUALIFIED PERSONNEL.
General Description This chapter gives an overview and introduces the features of the PMC-A Series. About This Manual The PMC-A series come in two types depending on the size of case. This operation manual describes the following models. ■ Type I PMC18-1A, PMC18-2A, PMC18-3A, PMC35-0.5A, PMC35-1A, PMC35-2A ■...
The output voltage and current can be controlled remotely using an external analog signal (voltage or resistance). By connecting a power supply controller such as KIKUSUI's PIA3200 or PIA4810 via the GPIB interface, the PMC-A series power supply can be integrated into a system such as an automated test system.
Options The following options are available for the PMC-A series. For details, contact your Kikusui agent or distributor. ■ Guard cap (GP01-PMC) Exchanged with the knob to prevent inadvertent operation of voltage or current setting.
• In order to keep a space for cooling intake, at least one layer of “blank panel” must be installed when the PMC-A is rack mounted. JIS standard:50 mm、EIA standard:44.45 mm For details, contact your Kikusui agent or distributor. PMC-A...
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Blank panel KBP3-4 Rack adapter KRA3 Blank panel KBP3-2 Inch rack EIA standard unit: mm (inch) Blank panel KBP3-4 Blank panel KBP3-2 Rack adapter KRA150 Milli rack JIS standard unit: mm Fig. 1-1 Example of installation for rack mount options PMC-A...
If any of the accessories are damaged or missing, contact your Kikusui agent or distributor. We recommend that all packing materials be saved, in case the PMC-A needs to be transported at a later date.
Precautions Concerning Installation Location Be sure to observe the following precautions when installing the PMC-A. ● Do not use the product in a flammable atmosphere. To prevent the possibility of explosion or fire, do not use the product near alcohol, thinner or other combustible materials, or in an atmosphere containing such vapors.
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However, operation in such environments may be possible through alteration. If you wish to use the product in such environments, consult your Kikusui agent or distributor. ● Do not place the product in a dusty location. Accumulation of dust can lead to electric shock or fire.
Precautions to Be Taken When Moving the Product When moving the product to the installation location or when transporting the product, note the following points. ● Turn off the POWER switch. Moving the product while the power is turned on can cause electric shock or damage to it.
*plastic feet can be removed plastic feet by loosening the push screw. push screw Fig. 2-2 Removing plastic feet In case the PMC-A is detached from the rack adaptor, we rec- ommend that you keep all the parts. When you attach the plastic feet again, use the parts which were removed.
The frequency can be 50 Hz or 60 Hz. Turn off the POWER switch. Connect the power cord to the AC inlet (AC INPUT) on the rear panel. Insert the power plug to an outlet. KIKUSUI ELECTRONICS CORP. WARNING FOR CONTINUED...
KIKUSUI ELECTRONICS CORP. WARNING FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE AND RATING FUSE. CAUTION TO AVOID ELECTRIC SHOCK, THE AC POWER Protective conductor terminal CABLE PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND. DO NOT...
While pressing the LIMIT switch, and turn the VOLT- AGE control knob; check that the output voltage can be preset in a range from zero to the rated output voltage value. While pressing the LIMIT switch, and turn the CUR- RENT control knob;...
Connecting the Load This chapter describes the consideration to be given to the load, explains how to connect the load wires, and explains how to connect to the output terminal. Load Considerations Note that the output will become unstable if the following types of loads are connected.
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3.1.2 When the Load Generates a Reverse Current to the Power Supply The PMC-A cannot absorb reverse current from the load. Therefore, if a regenerative load (such as an inverter, converter, or transformer) is connected, the output voltage increases and becomes unstable.
trol circuit, and depending on the situation, the product may burn out or the load's working life may be reduced. For any such load, connect a reverse current protection diode in series between the PMC-A and the load, as shown in Fig.
Nominal cross (Reference cross Allowable cur- Current recom- sectional area sectional area) mended by rent Kikusui [A] (Ta = 30 °C) (0.82) 1.25 (1.31) (2.08) (3.31) (5.26) Excerpts from Japanese laws related to electrical equipment When there is a long distance to the load, use as thick a line as possible, more than recommended.
+ (pos.) and – (neg.) output lines side by side or bundling them together is more effective against unwanted noise. The Kikusui-recommended currents shown in Table 3-1 "Nominal cross-sectional area of cables and allowable currents" are allowable current that have been reduced in consideration of the potential bundling of load cables.
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To secure the firm connection, use the crimping terminal for the load cable to the output terminal. Check the connection. 2 mm Knob When using the wire by stripping the cover When using the crimping terminal Fig. 3-5 Connecting to the output terminal PMC-A...
Basic Operation This chapter describes basic features and operations of the PMC-A such as remote sensing, master-slave parallel opera- tion, series operation. Constant Voltage (CV) and Constant Current (CC) Power Supplies The product has functions for constant voltage power supply to maintain a fixed/regularized output voltage, and for constant current power supply that maintain a fixed output current, even as the load changes.
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Fig. 4-1 illustrates the operating modes for the PMC-A. R stands for the load resistance value, and R stands for the resis- tance value calculated from the current and the voltage setup value (R ). The regulated power supply is designed as operating in CV mode when the operating point is in the range, and in CC mode when the operating point is in the range.
Crossover point The unit switches between CV mode and CC mode automati- cally depending on the load. The points where the transition occurs are called crossover points. For example, in CV mode, when the load changes and the out- put current reaches the current limit value, there is an automatic transition to CC mode in order to protect the load.
Using the Power Supply as a Constant Voltage Power Supply Output Setup Procedure Check that the OUTPUT switch is off and turn on the POWER switch. While holding down the LIMIT switch, set the appro- priate current for the load using the CURRENT knob. The value entered here becomes the current limit.
While holding down the LIMIT switch, set the required current using the CURRENT knob. Turn on the OUTPUT switch. If the load is connected, C.C LED lights indicating that the power supply is in the constant current operation. If the output voltage exceeds the voltage limit that was •...
The temperature fuse is built into the wire-wound section of the power transformer. When this fuse is blown out, the input power is shut down and the output is turned off. It is suspected that the product may have malfunctioned, contact your Kikusui distributor or agent. PMC-A...
■ Input fuse A fuse for AC input. If the fuse is blown out, the input power is shut down and the output is turned off. When replacing the fuse, see page 66, 6.1 Replacing the Fuse. Remote Sensing The remote sensing function is used to reduce the influence of voltage drops due to the load cable resistance and stabilize the output voltage across the load.
・ After inserting the wire, check that it does not come CAUTION loose. ・ Be sure the exposed section of the wire does not touch the chassis or other wires such as the wire of the adjacent terminal. Connection and setup procedure Turn off the POWER switch and OUTPUT switch.
Master-Slave Parallel Operation Up to three slave power supplies can be connected in parallel with a master power supply to increase the current capacity. In master-slave parallel operation, the total output of the power supplies connected in parallel can be controlled using only the master power supply.
4.6.1 Functions during Master-Slave Parallel Opera- tion The functions of the PMC-A during master-slave parallel oper- ation are as follows. ■ Voltmeter and Ammeter For the total output current, sum the currents of the master and slave units. ■ Remote Sensing Available only on the master unit.
■ Alarm The alarm detected by single unit of the PMC-A can be also detected under the master-slave parallel operation. Connection and setup procedure Turn off the OUTPUT and POWER switches on all power supplies that are to be connected in parallel. Choose the power supply that will be the master.
・ When performing master-slave parallel operation, CAUTION be sure to follow the procedure below. Since the slave power supply is under master power supply's control, a mistake in the procedure may cause the slave power supply to output the maximum voltage. Starting and ending parallel operation ■...
C.V LED lights on the master power supply panel. ■ End procedure Turn off the OUTPUT switch on the master power supply. Turn off the OUTPUT switch on the slave power sup- plies. Turn off the POWER switch on the slave power sup- plies.
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Turn the VOLTAGE knob clockwise until constant current operation is achieved. Offset adjustment is always performed under constant current operation. Adjust Iout OFS (Variable resistor D) so that the out- put current (a value calculated from the external DVM reading and shunt resistance) is 0 A. Turn Iout OFS (variable resistor D) 1 to 1.5 scales (angle of approx.
When operating by the front panel (local control), turn the VOLTAGE knob clockwise all the way. When using analog remote control, set the control signal to 10 V or 10 kΩ. Adjust the output voltage in either of two ways shown in the following.
Maximum number of power supplies connected in series The number of power supplies that can be connected in series depends on the output voltage of the model and the isolation voltage. Be sure the total output voltage of the power supplies connected in series does not exceed the isolation voltage.
• External monitoring of output voltage (V MON) Can be monitored on each unit. For the total output voltage, sum the monitor values of each units. • External monitoring of output current (I MON) The output current of each unit can be monitored. •...
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PMC-A Load PMC-A Connect the short bar to either the negative output terminal or the positive output terminal. Fig. 4-6 Series Operation PMC-A...
External Control This chapter describes external control functions. For those customers using the PMC-A series with the type of 14 pins of J2 connector, please note that the PMC- A series has been updated with adding the feature of external control of which existing the 14-pins connector is replaced by the 26-pins connector.
Different control modes can be used simultaneously. However, simultaneous use of CV-V and CV-R or CC-V and CC-R is not possible. Readjustment for remote/local switching The power supply is adjusted at the time of factory shipment assuming a front panel operation (local control). When using remote control (excluding output on/off using an external con- tact), the power supply must be readjusted.
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Single contact XY2B-7006 connection tool Contact removal XY2E-0001 tool Semi-cover XG5S-1301 (2 pieces used) KIKUSUI ELECTRONICS CORP. Polarity Guide Plug with polarity guide Polarity Slot In case the external control function is used by 14-pins connector, connect the J2 connector (26-pins) matching the polarity slot against the polarity guide of the 14-pins plug.
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Table 5-3 Pin arrangement of the J2 connector pins Signal Name Description type On during CV operation CV STATUS (open collector output by a photocoupler)*1 On during CC operation CC STATUS (open collector output by a photocoupler)*1 Output voltage monitor (Outputs 0 % to 100 % of the V MON rated current using 0 V to 10 V) Output current monitor (Outputs 0 % to 100 % of the...
pins Signal Name Description type Common for external signal of pins 19. Connected to the negative electrode (-S) of the sens- D COM ing input when remote sensing is used. Connected to -(neg.) output when remote sensing is not used. OUT ON/OFF Output on/off control.
having a withstanding voltage that is greater than the isolation voltage of the power supply. Turn off the OUTPUT and POWER switches. Select the control mode from Table 5-1. Combinations are also possible, but simultaneous use of CV-R and CV-V or CC-R and CC-V is not possible. Refer to the setup and connection procedure for the appropriate control mode given in the subsequent sections and set the control switch and connect the...
Controlling the output voltage using external resis- tance This mode is used to control the output voltage using an exter- nal resistor in the range of 0 Ω to approx. 10 kΩ. CAUTION If external resistor Rin comes loose, a voltage above the rated output will be delivered.
LOCAL V. CONT REMOTE R. CONT Io = Im•Ein/10 Io : Output current (A) Twist Im: Rated output current (A) Ein: External voltage (V) E in 0 ≤ Ein ≤ approx.10 V Fig. 5-5 CC-V setup and connection Controlling the output current using external resis- tance This mode is used to control the output current using an exter- nal resistor in the range of 0 Ω...
Output on/off control The output on/off can be controlled using an external contact. When the external contact is closed the output turns off. • J2-19 is pulled up internally to + 5 V or + 15 V using 10 kΩ resistor. (Type I is + 15 V, Type II is + 5 V) •...
Table 5-4 Monitor output of output voltage and output current Pin No. Signal name Description Common for remote control input, 9, 12, 14, 17 A COM Common for output monitor Monitor output of output voltage V MON 0 to approx. 10 V for 0 to the rated output voltage Monitor output of output current I MON...
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Table 5-5 Status output Pin No. Signal name Description Circuit Common for status output. STATUS COM Photocoupler emitter output. Set to ON status when in constant voltage mode. CV STATUS Photocoupler collector out- put. Set to ON status when in constant current mode.
Maintenance This chapter describes replacing the fuse and calibration proce- dure. Replacing the Fuse WARNING To prevent the possibility of electric shock, turn off the POWER switch on the power supply and unplug the power cord plug before replacing the fuse.
However, periodic calibration is necessary due to changes that occur after extended use. For calibration, contact your Kikusui agent or distributor. If you wish to calibrate the power supply, follow the procedure below. However, this calibration procedure omits some of the calibration items.
• Never touch variable resistor 6, because it is not to be adjusted by the user. If you turn this variable resistor by mistake, recalibration will be necessary. Please contact your Kikusui agent or distributor. • The functionality of the variable resistors is different between Type I and Type II...
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Connect the negative terminal and the chassis ground ter- minal using a short bar PMC-A (DVM) Fig. 6-2 Connection for voltage system calibration Turn on the POWER switch. ■ Output voltage offset Set the output voltage to 0 V. When using local control, turn the VOLTAGE knob coun- terclockwise all the way.
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If the output voltage is being controlled using an external ・ voltage (CV-V mode) on Type II models, the output volt- age at full scale cannot be adjusted using the variable resistor. Adjust the external voltage to obtain the full scale voltage.
Current system calibration procedure The following five items (two items on Type II models) are available in the current system. Since the items are related, be sure to calibrate all items according to the following procedure. • Output current offset (Type I model only) •...
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Turn the VOLTAGE knob clockwise until constant current operation is achieved. Offset adjustment is always performed under constant current operation. Adjust Iout OFS so that the output current (a value calculated from the external DVM reading and shunt resistance) is 0 A. Type I: Variable resistor D ■...
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■ Ammeter at full scale Set the output current (a value calculated from the external DVM reading and shunt resistance) to the rated current. Adjust I METER FS so that the ammeter reading on the power supply is equal to the rated current. Type I: Variable resistor 2 Type II: Variable resistor 5 ■...
Specifications This chapter gives description on the electrical and mechanical speci- fications of the PMC-A. Unless otherwise specified, the specifications are based on the following conditions. • The load is a pure resistance. • The negative output is connected to the chassis terminal using the short bar provided.
Specifications (Type I) Type I 18-1A 18-2A 18-3A 35-0.5A 35-1A 35-2A Input specifications Input power ± 100 VAC 10 %, 50/60 Hz, single phase (117 V, 200 V, 217 V, and 234 V are factory options) Power consumption*1 Approx. Approx. Approx.
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Type I 18-1A 18-2A 18-3A 35-0.5A 35-1A 35-2A Output specifications Current Rated current 0.5 A Variable range 0 A to 0 A to 0 A to 0 A to 0 A to 0 A to 0.5 A Constant current characteristics Resolution (Calculated 180 µA...
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Type I 18-1A 18-2A 18-3A 35-0.5A 35-1A 35-2A Protection function Overvoltage protection Reset by turning off the POWER switch (OVP) ALM LED (red) lights when tripped Preset range: Approx. 5 % to 105 % of the rated output voltage Overheat protection Reset by turning off the POWER switch (OHP) ALM LED (red) lights when tripped...
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Type I 18-1A 18-2A 18-3A 35-0.5A 35-1A 35-2A Remote control function Output voltage/control 18 V/ 35 V/ voltage ratio Approx. 10 V Approx. 10 V Output voltage/control 18 V/ 35 V/ resistance ratio Approx. 10 kΩ Approx. 10 kΩ Output current/control 1 A/ 2 A/ 3 A/...
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Type I 18-1A 18-2A 18-3A 35-0.5A 35-1A 35-2A General Weight Approx. Approx. Approx. Approx. Approx. Approx. 3.5 kg 4.0 kg 5.0 kg 3.5 kg 4.0 kg 5.0 kg (7.72 Ib) (8.82 Ib) (11.02 Ib) (7.72 Ib) (8.82 Ib) (11.02 Ib) Dimensions See Fig.
Specifications (Type II) Type II 110- 160- 250- 350- 500- 18-5A 35-3A 70-1A 0.6A 0.4A 0.25A 0.2A 0.1A Input specifications ± Input power 100 VAC 10 %, 50/60 Hz, single phase (117 V, 200 V, 217 V, and 234 V are factory option) Power consumption *1 Aprx.
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Type II 110- 160- 250- 350- 500- 18-5A 35-3A 70-1A 0.6A 0.4A 0.25A 0.2A 0.1A Output specifications Current Rated current 0.6 A 0.4 A 0.25 A 0.2 A 0.1 A Variable range 0 A to 0 A to 0 A to 0 A to 0 A to 0 A to...
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Type II 110- 160- 250- 350- 500- 18-5A 35-3A 70-1A 0.6A 0.4A 0.25A 0.2A 0.1A Protection function Overvoltage protection Reset by turning off the POWER switch (OVP) ALM LED (red) lights when tripped Preset range: Approx. 5 % to 105 % of the rated output voltage Overheat protection Reset by turning off the POWER switch (OHP)
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Type II 110- 160- 250- 350- 500- 18-5A 35-3A 70-1A 0.6A 0.4A 0.25A 0.2A 0.1A General ± ± Isolation voltage 250 V 500 V Weight Approx Approx. 6.0 kg Approx. 5.5 kg 5.0 kg (11.02 (13.23 Ib) (12.13 Ib) Dimensions See Fig.
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