Kikusui PAT40-100T, PAT30-266T, PAT40-200T, PAT60-133T, PAT80-100T User Manual
...
PART NO. IB025483
Jun. 2016
Appx
Appx
1
2
3
4
5
7
8
General
Description
Load and cable
Basic Operation
External Control
Parallel/Series Operation
Maintenance
Options
Troubleshooting
PAT-T Series
User’s Manual
Regulated DC Power Supply
PAT20-200T
PAT40-100T
PAT60-67T
PAT160-25T
PAT20-400T
PAT30-266T
PAT40-200T
PAT60-133T
PAT80-100T
PAT160-50T
PAT250-32T
PAT350-22.8T
PAT500-16T
PAT650-12.3T
PAT850-9.4T
8 kW type
4 kW type
Thank you for purchasing the PAT-T Series Regulated DC
Notations Used in This Manual
WARNING
CAUTION
See
Ope
4kW
8kW
Memo
Checking the Package Contents
Power Supply.
The PAT is a low-noise, highly efficient Constant Voltage (CV)/
Constant Current (CC) automatic crossover power supply that
employs a software switching system.
• In this manual, the PAT-T Series regulated DC power supply
is often simply referred to as "the PAT."
• The word "PC" used in this manual is a generic term for
personal computers and workstations.
• The following marks are used with the explanations in this
manual.
Indicates a potentially hazardous situation which, if
ignored, could result in death or serious injury.
Indicates a potentially hazardous situation which, if
ignored, could result in death or serious injury.Indicates a
potentially hazardous situation which, if ignored, may
result in damage to the product and other property.
Indicates information that you should know.
Indicates reference to detailed information.
Indicates reference to detailed information product
manual (CD-ROM).
Indicates reference to detailed information product
manual.
SHIFT+key name (marked in blue)
Indicates an operation in which a switch marked in blue is
pressed while holding down the SHIFT key.
CFxx : x
The first two characters "CF" indicates a configuration setting, and the next two-digit number indicates the CONFIG
parameter number. The character after the colon indicates
the selected setting.
Indicates a feature or specification that is only
available on the 4 kW type.
Indicates a feature or specification that is only
available on the 8 kW type.
Indicates useful info rmation.
Trademarks
Microsoft and Windows are registered trademarks of Microsoft
Corporation in the United States and/or other countries.
Other company names and product names used in this manual are generally trademarks or registered trademarks of the
respective companies.
Copyright
Reproduction and reprinting of this operation manual, whole or
partially, without our permission is prohibited.
Both unit specifications and manual contents are subject to
change without notice.
© 2010 Kikusui Electronics Corporation
When you receive the product, check that all accessories are
included and that the unit and accessories have not been
damaged during transportation.
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 product needs to be transported at a later date.
Accessories
OUTPUT terminal cover set
(Output protection covers, Screws)
Terminal block cover
(Terminal block cover, screws) [Only 4 kW type]
Output
terminal bolt
(Bolts, Nuts,
Spring washers)
J1/ J2 connector kit
(Protection covers, sockets, pins)
Chassis connection wire set
(Chassis connection wire, screw)
Heavy object warning label 1 pc.
Setup guide 1 pc.
Quick reference 1 pc.
Safety information 1 pc.
CD-ROM 1 pc.
PAT20-400T/ PAT30-266T M12 (2 sets)
PAT20-200T/ PAT40-100T/
PAT6 0 -67 T / PAT16 0 -25T
PAT40-200T/ PAT60-133T/
PAT8 0 -10 0 T / PAT1 6 0-50 T
PAT250-32T/ PAT350-22.8T/
PAT500-16T/ PAT650-12.3T/
PAT850-9.4T
2sets
1set
M10 (2 sets)
M8 (2 sets)
1set
1set
(English)
1pc.
(Japanese)
Applicable firmware version of the PAT-T Series
This manual applies to 8 kW type products with firmware version 5.xx and 4 kW type products with firmware version 4.xx.
When making an inquiry about the product, please provide us
with the following information.
• Model (indicated at the top section on the front panel)
•Firmware version
• Serial number (indicated at the bottom section on the rear
panel)
This product information can also be obtained using the *IDN?
remote control command.
Contents
1
2
Contents by Function ............................................................................................. 6
Front panel ............................................................................................................. 8
Rear panel ............................................................................................................ 10
Load and cable
1.1 Load Considerations .................................................................................................12
1.2 Load Cable................................................................................................................14
Basic Operation
2.1 Phase input mode ....................................................................................................18
2.2 Measured Value Display and Setting Display ...........................................................19
2.3 Output Operation ...................................................................................................... 20
2.4 Constant Voltage (CV) and Constant Current (CC) Power Supplies ........................22
2.5 Using the PAT as a CV or CC Power Supply............................................................ 24
2.6 Protection Functions and Alarms ..............................................................................25
2.6.1 Overvoltage protection (OVP) and overcurrent protection (OCP) .................26
2.6.2 Other Protection Functions............................................................................29
2.7 CONFIG Settings ......................................................................................................31
2.8 Preset Memory Function...........................................................................................41
2.9 Lock Function............................................................................................................42
2.10 Switching from Remote to Local Mode .....................................................................43
2.11 Remote Sensing Function......................................................................................... 43
2.12 Factory Default Settings............................................................................................46
3
4
External Control
3.1 Overview of External Control .................................................................................... 48
3.2 J1 Connector.............................................................................................................48
3.3 Output terminal Insulation .........................................................................................51
3.3.1 When the Output terminal Is Not Grounded (Floating) ..................................52
3.3.2 When the Output terminal Is Grounded.........................................................53
3.4 Controlling the Output Voltage ..................................................................................55
3.4.1 External Voltage (Vext) Control .....................................................................55
3.4.2 External resistance (Rext) control..................................................................57
3.5 Controlling the Output Current ..................................................................................59
3.5.1 External Voltage (Vext) Control .....................................................................59
3.5.2 External Resistance (Rext) Control ...............................................................61
3.6 Controlling the Output On/Off ................................................................................... 63
3.7 Shutdown Control Using External Contact................................................................65
3.8 External Monitoring ...................................................................................................67
Parallel/Series Operation
4.1 Master-Slave Parallel Operation ...............................................................................70
4.1.1 Functions during Master-Slave Parallel Operation ........................................70
4.1.2 Connection (Parallel Operation) ....................................................................72
4.1.3 Master-Slave Parallel Operation Setup .........................................................75
4.1.4 Starting the Master-Slave Parallel Operation ................................................ 77
4.2 Series Operation ....................................................................................................... 78
4.2.1 Functions during series operation.................................................................. 78
PAT-T 3
5
4.2.2 Load Connection (Series Operation)............................................................. 80
4.2.3 Series Operation Setup ................................................................................. 81
4.2.4 Starting the Series Operation ........................................................................ 81
Maintenance
5.1 Inspection ................................................................................................................. 84
5.2 Calibration................................................................................................................. 87
5.2.1 Calibration Overview ..................................................................................... 87
5.2.2 Calibration Procedure.................................................................................... 88
Appendix
A.1 Options ..................................................................................................................... 96
A.2 Troubleshooting ........................................................................................................ 99
Index ....................................................................105
4 PAT-T
PAT-T 5
This page is intentionally blank.
Contents by Function
Preparation
Setting
4kW
• I want to check the accessories.
• The installation space is limited. How much space is
needed around the air inlet and outlet?
• How do I connect the AC power supply?
• What kind of wires should be used to connect to the
AC power supply?
• What kind of wires should be used to connect the
load?
• The wire connecting the load is long (distance to the
load is long), but stable voltage is required.
• How do I rack mount the PAT? What kind of parts is
needed?
• How do I set the communication conditions for remote
control?
• How do I control the output voltage using an external
DC voltage?
1.1, "Checking the Package Contents"
➔
For information about precautions concern-
➔
ing installation, see the accompanying setup
guide or safety information.
For information about connecting the power
➔
cable, see the accompanying setup guide.
➔
1.2, "Load Cable"
➔
2.11, "Remote Sensing Function"
➔
" Options"
➔
See the Communication Interface Manual
➔
on the CD-ROM.
3.4.1, "External Voltage (Vext) Control"
➔
p. 2
---
---
p. 14
p. 43
p. 96
---
p. 55
• How do I increase the current capacity in parallel
operation?
• When using the PAT in the single-phase
input mode, is there any difference in the setting
range compared to the three-phase input power?
• How do I reset the PAT to factory default settings?
4.1, "Master-Slave Parallel Operation"
➔
2.1, "Phase input mode"
➔
2.5, "Using the PAT as a CV or CC Power
Supply"
2.6.1, "Overvoltage protection (OVP) and
overcurrent protection (OCP)"
2.12, "Factory Default Settings"
➔
p. 70
p. 18
p. 24
p. 26
p. 46
6 PAT-T
• How can I use the PAT as a constant voltage power
Operation
4kW
4kW
4kW
Maintenance
supply (CV)?
• How can I use the PAT as a constant voltage current
supply (CC)?
• I would like to operate the PAT at a given voltage. How
do I register the voltage in the preset memory?
• How do I set the upper limit to prevent the voltage
from being increased too much?
• How do I set the voltage in fine resolution?
2.5, "Using the PAT as a CV or CC Power
Supply"
➔
2.8, "Preset Memory Function"
➔
" Setting limit function"
➔
" Fine adjustment function"
➔
p. 24
p. 41
p. 27
p. 24
• How do I set the protection function to prevent
damage to the load?
• How do I cut off the output at a different time from
other power supplies?
• How can I monitor the output voltage and output
current?
• How do I temporarily lock the keys?
• How do I use the sample program for remote control?
• How do I display a slave unit's current during parallel
operation?
• How can I use the PAT in the singlephase input ?
• How do I change the phase input mode?
(from the single-phase input to the three-phase input)
• How do I change the phase input mode?
(from the three-phase input to the single-phase input)
2.6, "Protection Functions and Alarms"
➔
2.6.1, "Overvoltage protection (OVP) and
➔
overcurrent protection (OCP)"
" Output on/off delay functions"
➔
3.8, "External Monitoring"
➔
2.9, "Lock Function"
➔
See the Communication Interface Manual
➔
on the CD-ROM.
4.1.1, "Functions during Master-Slave
➔
Parallel Operation"
POWER switch
➔
2.7, "CONFIG Settings"
➔
➔
p. 25
p. 26
p. 21
p. 67
p. 42
---
p. 70
p. 9
p. 31
• How do I clean the dust filter?
• How do I check for breaks and tears in the insulation?
• How do I calibrate the PAT-T series?
➔
➔
➔
Trobleshooting... See "A.2 Troubleshooting" on page 99.
"Cleaning the Dust Filter"
5.1, "Inspection"
5.2, "Calibration"
p. 84
p. 84
p. 87
PAT-T 7
Front panel
CV
EXTEXT
RMTRMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
CCCC
C
C
V
0-
16
6
7
9
13
14
15
21
20
19
18
17
12
11
8
10
0-
1
2
3
4
5
Display and keys
Examples of PAT20-400T
8 PAT-T
No.
See
4kW
1
POWER switch
Name
+SHIFT
POWER
switch
OUTPUT switch
2
CURRENT knob
3
+STORE
FINE
VOLTAGE knob
4
FINE
Air inlet (louver)
5
Ammeter
6
CC
7
Voltmeter
8
PRESET
9
CV
10
OUTPUT LED
11
ALARM LED
12
RMT LED
13
EXT LED
14
LOCK LED
15
SET key
16
RECALL A
+STORE
17
A key
OVP
•OCP key
RECALL B
+STORE
18
B key
CONFIG
RECALL C
C key
–
19
–SHIFT
20
LOCAL key
21
+STORE
STORE
LOCK
Function
Power on/off lever
Raise the lever to turn the power on ( ). Lower to turn the power off ( ).
To change the phase input mode to the single-phase input,
press the POWER switch with pressing the STORE key.
Output on/off switch.
Used to set the current value or select the CONFIG parameter number.
Current adjustment knob when the fine adjustment function is enabled.
Used set the voltage value or change the CONFIG parameter setting.
Voltage adjustment knob when the fine adjustment function is enabled.
Inlet for taking in air from the outside. A dust filter is built in.
Displays the current value or the CONFIG parameter number.
Illuminates in constant current mode.
Displays the voltage value or the CONFIG parameter setting.
The LED of the preset memory in use illuminates.
Illuminates during constant voltage mode.
Illuminates when output is on and turns off when output is off.
Illuminates when a protection circuit is activated.
Illuminates when operating in remote control.
Illuminates when operating in external control, or when used as a slave unit in
master-slave parallel operation.
Illuminates when panel operations except turning the output on/off and viewing
settings.
Key for setting and checking the output voltage or output current (the key has
an LED).
Key for recalling the value of preset memory A.
Key for saving the value to preset memory A. Press STORE and then A.
Key for setting and checking the trip points of the overvoltage protection (OVP)
and overcurrent protection (OCP) (the key has an LED).
Key for recalling the value of preset memory B.
Key for saving the value to preset memory B. Press STORE and then B.
Key for setting various conditions concerning the operation (the key has an
LED).
Key for recalling the value of preset memory C.
Key for saving the value to preset memory C. Press STORE and then C.
Key for storing the preset memory.
Key for calling up the functions marked in blue characters.
Key for changing between remote and local modes.
Key for disabling only the operations that change the settings (keeping the
display and recall operations enabled).
*1
–
–
p. 20
–
p. 24
–
p. 24
p. 84
–
p. 24
–
p. 41
p. 24
p. 19
p. 25
p. 43
p. 48
p. 71
p. 42
p. 24
p. 41
p. 41
p. 26
p. 41
p. 41
p. 31
p. 41
p. 41
p. 41
–
p. 43
p. 42
*1. Once the single-phase input mode is set to turn on the power, the PAT will be turned on in the single-phase input mode for next
time.
PAT-T 9
Rear panel
32
25
22
23
31
27
28
26
29
24
30
32
25
22
23
31
27
28
26
29
24
30
See
Ope
4kW
8kW
Examples of PAT40-100T (4 kW type)
No. Name Function
Connector for external analog control.
Connector for parallel operation.
Slot for installing the optional interface board (GPIB, USB or LAN). A factory option.
Terminal used to ground the output.
Output terminal.
Exhaust port for cooling.
Input terminal (Three-phase input/ single-Phase input, Including the GND terminal).
Input terminal (Including the GND terminal).
The serial number of the PAT.
A terminal used to connect the sensing wires.
Switch for enabling/disabling remote sensing.
Connector for the RS-232C cable.
22
23
24
25
26
27
28
29
30
31
32
J1
J2
Option slot
Chassis terminal
DC OUTPUT
Air outlet
AC INPUT
Serial number
Sensing terminal
Sensing switch
RS232C
Examples of PAT20-400T (8 kW type)
p. 48
p. 72
Interface
manua
p. 14
Setup
guide
–
p. 43
Interface
manua
l
l
10 PAT-T
Load and cable
This chapter describes the
consideration to be given to the load
and explains how to connect the load
wires.
1.1 Load Considerations
Preset constant current value
Ammeter reading
(average value)
IO
RD
EO
Equivalent circuit of the PAT
Regenerative load
−
+
0
Reverse current
-I
O
+IO
Irp
RD[Ω] ≤
E
O
[V]
I
rp
[A]
RD: Reverse current bypass dummy load
E
O: Output voltage
I
rp
: Max. reverse current
Output current waveform
Load
Note that the output will become unstable if the following types of loads are
connected.
Load with peaks and pulse-shaped current
The PAT indicates only mean values. Even when the indicated value is less than the
preset current value, the peak values may actually exceed the preset current value. If
this happens, the PAT is instantaneously put into constant-current operation mode,
and the output voltage drops accordingly.
For these types of loads, you must increase the preset current value or increase the
current capacity.
Preset constant current value
Ammeter reading
(average value)
Fig.1-1 Load current with peaks Fig.1-2 Pulse-shaped load current
Load that generates reverse current to the power supply
The PAT 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.
For these types of loads, connect a resistor R
reverse current. However, the amount of current to the load decreases by max.
reverse current I
rp.
D as shown in Fig.1-3 to bypass the
12 PAT-T
Fig.1-3 Remedy for regenerative load
• Use a resistor with sufficient rated power for resistor RD.
CAUTION
PAT
Load with accumulated
energy
DRP: Reverse-current-prevention diode
D
RP
CAUTION
• If a resistor with insufficient rated power for the circuit is used, resistor R
may burn out.
Load with accumulated energy
Connecting a load with accumulated energy, such as a battery, to the PAT may cause
current to flow from the load to the internal circuit of the PAT. This current may
damage the PAT or reduce the life of the battery.
For this type of loads, connect a reverse-current-prevention diode (D
PAT and the load in series as shown in Fig.1-4.
This cannot be used in conjunction with remote sensing.
Fig.1-4 Remedy against load with accumulated energy
RP) between the
D
1
Load and cable
• Use a reverse-current-prevention diode (DRP) complied to the following
references.
Reverse voltage withstand capacity :
At least twice the rated output voltage of the PAT.
Forward current capacity :
Three to ten times the rated output current of the PAT.
A diode with small loss.
• Be sure to take into account the heat generated by reverse-currentprevention diode D
RP. Reverse-current-prevention diode DRP may burn out
with inadequate heat dissipation.
PAT-T 13
1.2 Load Cable
W ARNING
To prevent the possibility of fire.
• Use a load cable with sufficient current capacity with respect to the
rated output current of the PAT.
• The output terminal and its area nearby gets very high temperature,
use the cable with sufficient an allowable temperature higher than
85 °C of the covering materials.
Possible electric shock.
• Use a load cable with a higher voltage rating than the isolation
voltage of the PAT. For the isolation voltage of each model, see
"Specifi
cations."
■ Current capacity of the load cable
If their current rating exceeds the maximum rated output current, the cable will
remain intact even if the load is short-circuited. Load cables must be rated to carry
the maximum rated output current of the PAT.
■ Allowable current of the cable dependent on the maximum allowable
temperature of the cable insulation
The cable temperature is determined by a current-caused resistance loss, ambient
temperature, and thermal resistance to the outside. Table 1-1 shows the allowable
capacity of current that can flow through a heat-resistant PVC wire (single wire)
having an allowable temperature of 60 °C when the wire is stretched horizontally in
the air at an ambient temperature of 30 °C. If the condition is such that PVC wires
with lower heat-resistant temperature are used, the ambient temperature exceeds 30
°C, or the wires are bundled resulting in low heat radiation, the current capacity
needs to be reduced.
14 PAT-T
Table 1-1 Nominal cross-sectional area of cables and allowable
currents
Nominal cross-
sectional area
2
[mm
]
2 14 (2.08) 27 10
3.5 12 (3.31) 37 -
5.5 10 (5.26) 49 20
8 8 (8.37) 61 30
14 6 (13.3) 88 50
22 4 (21.15) 115 80
30 2 (33.62) 139 -
38 1 (42.41) 162 100
50 1/0 (53.49) 190 -
60 2/0 (67.43) 217 -
80 3/0 (85.01) 257 200
100 4/0 (107.2) 298 -
125 - - 344 -
150 - - 395 300
200 - - 469 400
*1. Excerpts from Japanese laws related to electrical equipment.
AWG
(Reference cross-
sectional area)
[mm
■ Taking measures against noise
Allowable current
2
]
[A] (Ta = 30 °C)
*1
Current
recommended by
Kikusui [A]
1
Load and cable
When connecting wires that have the same heat-resistant temperature, more current
can flow by separating the wires to make heat radiation as great as possible.
However, installing the + (pos.) and - (neg.) output wires of the load cable side by
side or bundling them together is more effective against unwanted noise. The
Kikusui-recommended currents shown in Table 1-1 are allowable current values
that have been reduced in consideration of the potential bundling of load cables. Use
these values as a guideline when connecting load cables.
■ Limitations of the remote sensing function
All wires have resistance. The voltage drop in wires becomes greater as the wire
becomes longer or the current becomes larger. This results in the voltage applied at
the load end to be smaller. The PAT has a sensing function that compensates for this
voltage drop up to approximately 0.6 V for a single line. If the voltage drop exceeds
this level, wires having a greater sectional area should be used.
PAT-T 15
16 PAT-T
This page is intentionally blank.
Basic Operation
This chapter describes how to turn on/
off the output and the basic operations
that you can carry out from the front
panel.
2.1 Phase input mode
4kW
See
The input power mode of the PAT (4kW type) can be switched to either three-phase
input or the single-phase input.
p. 31
“Specification”
Before starting the operation, confirm the status of phase input mode. To verify the
status and setting of the phase input mode, refer to the ”2.7 CONFIG Settings”.
The principal of difference in specifications for the phase input mode are described
as follows.
Descriptions Three-phase input mode Single-phase input mode
Output power 4 kW 3 kW
Output current setting
range
Overcurrent protection
(OCP) setting range
Input open-phase
protection (PHASE)
● Monitor signal output
(IMON) (Current)
at rated current output
0 % to 105 % of rtg
10 % to 111.5 ％ of the rated
output current
Turns the output off. ALARM
LED illuminates.
10.00 V±0.25 V 7.50 V±0.25 V
*1
0 % to 105 % of rtg x 75 %
(10 % to 111.5 ％ x 75 %) of the rated
output current
Cancels the Input open-phase
protection feature.
The upper limit is set at 75 % of the
rating of the three-phase input mode
*1
● External control
EXT-V CC CONT
(CC external voltage
control)
EXT-R CC CONT
(CC external resistance
control normal)
EXT-R CC CONT
(CC external resistance
control fail safe)
0 % to 100 % of the rated
output current in the range of
0 V to 10 V
0 % to 100 % of the rated
output current in the range of
0 kΩ to 10 kΩ
100 % to 0 % of the rated
output current in the range of
0 kΩ to 10 kΩ
.
0 % to 75% of the rated output current
(of the three-phase input mode) in the
range of 0 V to 7.5 V
0 % to 75 % of the rated output
current (of the three-phase input
mode) in the range of 0 kΩ to 7.5 kΩ
75 % to 0 % of the rated output
current (of the three-phase input
mode) in the range of 0 kΩ to 7.5 kΩ
.
*1. rtg : Indicates the rated output
If the input power connected to the single-phase input wiring while the PAT is set to
the three-phase input mode, the function of “Input open-phase protection (PHASE)”
will be activated and the ALARM LED lights on. On the other hand, If the input
power connected to the three-phase input wiring while the PAT is set to the singlephase input mode, the output current will be limited to 75 % of the rating of threephase input mode. Confirm the status of phase input mode and the input wirings
properly.
18 PAT-T
2.2 Measured Value Display and Setting Display
See
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
On
See
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
On
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
On
The panel display has two modes. One mode displays the measured values of the
output voltage and output current, and the other mode displays the settings. These
two modes can be distinguished by the on/off state of the SET, OVP•OCP, and
CONFIG keys.
■ Measured value display
The measured value display shows the present output terminal voltage and load
current. In this mode, the LEDs of the SET, OVP•OCP, and CONFIG keys are all
off.
p. 24
You can change the output voltage and current settings in the measured value
display mode.
OUTPUT
ALARM
A
PRESET
AV
Key turned off
RMT
B
CV
EXTEXT
LOCK
Fig.2-1 Measured value display
example
C
■ Setting display
The following three states are available.
• Setting display of the output voltage and output current
Press the SET key. The key LED illuminates. The present output voltage and
current are displayed.
2
Basic Operation
p. 41
Fig.2-2 Setting display example of
the output voltage and output
current
If you save or recall a preset memory, the panel display shows the preset memory
values.
• Setting display of the overvoltage and overcurrent protection
Press the OVP•OCP key. The key LED illuminates. The present overvoltage
and overcurrent settings are displayed.
Fig.2-3 Setting display example
of the overvoltage and
overcurrent protection
• Setting display of the system configuration
Press the CONFIG key. The key LED illuminates. The system configuration
settings are displayed.
Fig.2-4 Setting display example
of the system configuration
PAT-T 19
2.3 Output Operation
4kW
See
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
CV
On
See
CAUTION
The OUTPUT switch is a toggle switch.
When you press the OUTPUT switch and the output turns on, the OUTPUT LED
illuminates. When you press the OUTPUT switch and the output turns off, the
OUTPUT LED turns off.
If the output is turned on, the present setting is output. If you change the setting
while the output is on, the change is applied to the output.
When the phase input mode is changed to the single-phase input mode from
the three-phase input mode for 4kW type, the setting value of the output current and
the overcurrent protection (OCP) is limited to 75 % of the three-phase input mode.
p. 63
p. 46, p. 63
It is possible to control on/off of the output by external control.
Fig.2-5 Output on display example
Output on/off when power is turned on
By factory default, the output is off when the power is turned on. You can set the
output state at power-on to on (CF25: ON) in the CONFIG settings.
If you set the output state at power-on to on, check the OVP trip point setting before
you turn off the POWER switch.
If the breaker trip setting that is applied when an OVP or OCP activates is set to
“trip” (CF28: ON) and the OVP trip point is set lower than the output voltage
setting, the OVP will activate every time you turn the POWER switch on and the
POWER switch will turn off.
If the condition above occurs and you are unable to change any of the settings, turn
the POWER switch on while holding down the SHIFT key to reset the PAT to
factory default settings.
If the OVP/OCP settings are not appropriate when you change the load, the
load may break.
20 PAT-T
Output on/off delay functions
See
8kW
See
p. 33
You can set a delay (0.1 s to 10.0 s) until the output is actually turned on or off after
you turn the OUTPUT switch on or off. This function is useful if you want to turn
the output on/off by setting a time offset according to the load characteristics.
To enable this function, set the output on delay (CF10: 0.1 to 10.0) and output off
delay (CF11: 0.1 to 10.0) of the CONFIG parameter. You can set separate delays for
on and off.
The OUTPUT LED blinks while the output on/off delay function is in operation.
Press the OUTPUT switch while the OUTPUT LED is blinking to cancel the output
on/off delay.
Press the OUTPUT switch while holding down the SHIFT key while the OUTPUT
LED is blinking to cancel the output on/off delay and forcibly switch the output.
Output on Output off
OUTPUT
LED
OUTPUT
LED
Off OffBlinking On Blinking
Output on
Output off Output off
DelayDelay
Output on
Off
Output on
Cancel delay
Blinking Blinking
Output on
Blinking
Output off
Output on
Output off
Cancel delay
OnOn
2
Basic Operation
p. 37
Output off
Delay
Cancel output off delay
Output off by force
Output off
On
OUTPUT
LED
Delay Delay
Cancel output on delay
Output on
Off Off
Output off Output off
Output on by force
Blinking Blinking
Output on
Delay Delay
Fig.2-6 Output on/off delay action
Setting the output-on startup state
When the output state at power-on is set to on, you can choose to make the PAT start
as a constant voltage (CV) power supply or as a constant current (CC) power
supply.
To use this function, set the output-on startup state (CF32: CV/CC) in the CONFIG
settings. To start the PAT as a constant voltage (CV) power supply, select CV
prioritization (CF32: CV). To start the PAT as a constant current (CC) power supply,
select CC prioritization (CF32: CC).
PAT-T 21
2.4 Constant Voltage (CV) and Constant Current
R
A
B
A
B
(CC) Power Supplies
The PAT has a constant voltage power supply function that maintains the output
voltage at a constant level and a constant current power supply function that
maintains the output current at a constant level even when the load changes. The
condition in which the PAT is operating as a constant voltage power supply is called
the constant voltage (CV) mode. The condition in which the PAT is operating as a
constant current power supply is called the constant current (CC) mode. The
operation mode is determined by the following three values.
• Preset output voltage (Vs)
• Preset output current (Is)
• Load resistance (R
L)
The operation modes are described below.
L
Vmax
Vs
Output voltage Vout
A
0
Output current Iout
>Rc
p
B
R
L
Crossover point
RL<Rc
q
ImaxIs
=Rc
A = CV mode area
B = CC mode area
Vs = Preset voltage
Is = Preset current
Rc = Vs/Is (Ohm’s Law)
L
= Load resistance
R
Vmax = Maximum preset voltage
Imax = Maximum preset current
Fig.2-7 Constant voltage operation and constant current
operation
Fig.2-7 shows the operation modes of the PAT. We denote the load resistance as R
and the resistance calculated from the preset current and voltage as Rc (Rc = Vs/Is).
The power supply is designed so that it operates in CV mode in area and CC
mode in area . The boundary is the line defined by R
L = Rc. This line represents
the load at which the output voltage and the preset voltage are equal and the output
current and preset current are equal. If load resistance R
L is greater than resistance
Rc, the operating point is in area , and the PAT operates in CV mode (point p). In
this case, preset current Is is the current limit.
L
When operating in CV mode, the output voltage is maintained at the preset voltage.
Output current I is determined by the relationship defined by the equation I = Vs/R
L.
It is a current less than current limit Is. In this mode, the actual current that flows is
not necessarily equal to the specified value.
For loads in which transient peak current flows, preset current Is must be set so that
the peak value does not reach the current limit.
Conversely, if load resistance R
L is less than resistance Rc, the operating point is in
area , and the PAT operates in CC mode (point q). In this case, preset voltage Vs
is the voltage limit.
22 PAT-T
When operating in CC mode, the output current is maintained at the preset current.
Output voltage V is determined by the relationship defined by the equation V = Is
RL. It is a voltage less than voltage limit Vs. In this mode, the actual voltage that is
applied is not necessarily equal to the specified value.
For loads that generate transient surge voltage, preset voltage Vs must be set so that
the surge voltage does not reach the voltage limit.
■ Crossover point
×
CV mode and CC mode switch automatically according to the changes in the load.
The point at which the mode switches is called the crossover point.
For example, if the load changes and the output current reaches the current limit
when operating in CV mode, the operation mode automatically switches to CC to
protect the load. Likewise, if the output voltage reaches the voltage limit when
operating in CC mode, the operation mode automatically switches to CV.
CV and CC mode operation example
This section uses a power supply with a rated output voltage of 100 V and a rated
output current of 10 A as an example.
A load resistance (R
supply. The output voltage and output current are set to 30 V and 5 A, respectively.
In this case, Rc = 30 V/5 A = 6
operation mode is CV. If you want to increase the voltage in CV mode, the voltage
can be increased up to the voltage defined by the following equation: Vs = Is
Substituting the values, we obtain Vs = 5 A
voltage above this point, the crossover point is reached, and the operation mode
automatically switches to CC mode. To maintain CV mode, increase the current
limit.
Next a load resistance (R
supply. The output voltage and output current are set to 30 V and 5 A, respectively.
In this case, Rc = 30 V/5 A = 6
operation mode is CC. If you want to increase the current in CC mode, the current
can be increased up to the current defined by the following equation: Is = Vs/R
Substituting the values, we obtain Is = 30 V/5
current above this point, the crossover point is reached, and the operation mode
automatically switches to CV mode. To maintain CC mode, increase the voltage
limit.
L) of 8 Ω is connected to the output terminals of the power
Ω. Since, 8 Ω is greater than 6 Ω (RL > Rc), the
× RL.
× 8 Ω = 40 V. If you try to increase the
L) of 5 Ω is connected to the output terminals of the power
Ω. Since, 5 Ω is less than 6 Ω (RL < Rc), the
Ω = 6 A. If you try to increase the
2
Basic Operation
L.
PAT-T 23
2.5 Using the PAT as a CV or CC Power Supply
4kW
See
8kW
When using the PAT as a constant voltage power supply, the preset current is the
limit that can flow through the load.
When using the PAT as a constant current power supply, the preset voltage is the
limit that can be applied to the load.
If the specified limit is reached, the operation mode automatically switches. If the
operation mode switches, the CV LED or CC LED changes to indicate the switch.
When the phase input mode is changed to the single-phase input mode from
the three-phase input mode for 4kW type, the setting value of the output current and
the overcurrent protection (OCP) is limited to 75 % of the three-phase input mode.
1
Check that the POWER switch is turned off.
2
Connect the load to the output terminal.
3
Turn the POWER switch on.
If the OUTPUT LED on the display is illuminated, press the OUTPUT switch to turn
the output off.
p. 37
4
Check that the SET key is illuminated.
If it is not, press the SET key so that you can set the voltage and current.
5
Turn the VOLTAGE knob to set the voltage.
6
Turn the CURRENT knob to set the current.
7
Press the OUTPUT switch.
The OUTPUT LED on the display illuminates, and the voltage and current are delivered
to the output terminal.
The CV LED illuminates when the PAT is operating as a constant voltage power supply.
The CC LED illuminates when the PAT is operating as a constant current power supply.
You can set the voltage and current by carrying out step 5 and step 6 while
checking the actual output voltage or current with the output turned on.
You can only use the CONFIG settings to set the output-on startup state
(CF32: prioritize CV or CC) for 8kW type.
Fine adjustment function
This function increases the resolution of the VOLTAGE and CURRENT knobs. By
turning the VOLTAGE or CURRENT knob while holding down the SHIFT key,
you can set the value using finer resolution.
The display resolution of the preset voltage and preset current does not change even
if you use the fine adjustment function. Therefore, the displayed value may not
change even if you turn the knob. The display changes when the amount of change
reaches the minimum displayed digit of the preset voltage or current.
24 PAT-T
2.6 Protection Functions and Alarms
See
See
4kW
8kW
4kW
8kW
8kW
See
The PAT is equipped with the following protection function.
• Overvoltage protection (OVP)
• Overcurrent protection (OCP)
• Overheat protection (OHP)
• Overheat protection of the bleeder circuit (BOHP)
• Fan failure protection (FAN)
• Incorrect sensing connection protection (SENSE)
• Input open-phase protection (PHASE)
• Shut down (SD)
Alarm occurrence and release
Alarm occurrence
When a protection function activates, the PAT behaves as follows:
• The output turns off.
p. 36
p. 27 to p. 30
For the overvoltage protection (OVP), overcurrent protection (OCP), and
shutdown (SD), you can select breaker trip in the CONFIG settings.
• The ALARM LED on the front panel display illuminates, then the cause of alarm
occurrence and the current measuring value displays alternately.
When the breaker trip is selected in overvoltage protection (OVP) or overcurrent
protection (OCP) or shutdown (SD), the front panel display shows the characters
indicated as power off respectively ( : for about 4 to 5 seconds, : for
about 10 to 15 seconds).
2
Basic Operation
p. 33
• The ALARM signal is output from pin 5 of the J1 connector.
The ALARM signal is delivered even if the breaker is tripped ( : for about
4 to 5 seconds, : for about 10 to 15 seconds).
• If the overheat protection (OHP) activates, the breaker trips ( only on
400 V input models). The ALARM LED illuminates, and the PAT shows the
OHP power-off display tor 10 to 15 seconds.
■ Verifying the cause of alarm occurrence
When the “cause of alarm occurrence” and the “present measuring value” displays
alternately, you can change the status of display by pressing the switch specified as
follows. It is helpful to verify the cause of alarm occurrence. Note that the displayed
setting value can not be changed.
CONFIG key
SET key Displays “the cause of alarm occurrence” and “the present setting value.”
OVP•OCP key
Displays “the cause of alarm occurrence” and “
e parameter number of alarm cause display (CF01).”
Displays “the cause of alarm occurrence” and “the setting value of OVP/
OCP trip point.”
PAT-T 25
Releasing the alarm
See
4kW
■ When the breaker trips (when the POWER switch turns off)
After eliminating the cause of the alarm occurrence, turn on the POWER switch.
■ When the output turns off
Turn off the POWER switch, eliminate the cause the alarm occurrence, and then
turn the POWER switch back on.
If you cannot clear the alarm even when all of the causes of the alarm occurrence are
eliminated, the PAT may have malfunctioned. If this happens, stop using the PAT
and contact your Kikusui agent or distributor.
The cause of the alarm occurrences are described in the protection functions.
2.6.1 Overvoltage protection (OVP) and overcurrent protection (OCP)
The overvoltage protection (OVP) and overcurrent protection (OCP) functions
activate under the following conditions.
■ Conditions in which the OVP is activated
• When the output terminal voltage exceeds the specified voltage (OVP trip
point).
• When there is a problem with the PAT.
■ Conditions in which the OCP is activated
• When the output current exceeds the specified current (OCP trip point).
• When there is a problem with the PAT.
The must set appropriate values for the OVP and OCP trip points. Be sure to first set
the OVP and OCP trip points to comply with the load immediately after installing
the PAT or changing the load.
Breaker trip function when the OVP or OCP is activated
p. 36
You can select whether to trip the breaker (CF28: ON/OFF) when the OVP or OCP
function activates.
OVP and OCP trip point settings
When the phase input mode is changed to the single-phase input mode from
the three-phase input mode for 4kW type, the setting value of the output current and
the overcurrent protection (OCP) is limited to 75 % of the three-phase input mode.
26 PAT-T
“Specification”
The OVP operates on the output terminal voltage. If you want to activate the
function on the voltage across the load, set the OVP trip point by considering the
voltage drop in the load cable.
1
Press the OVP•OCP key.
The OVP•OCP key LED illuminates, and the specified OVP/OCP trip point is shown
on the display.
2
While viewing the panel display, turn the VOLTAGE knob to set the OVP
trip point or the CURRENT knob to set the OCP trip point.
If the voltage setting is limited in the CONFIG settings (CF29: ON), the OVP trip
point cannot be set lower than the present preset output voltage.
If the current setting is limited in the CONFIG settings (CF30: ON), the OCP trip point
cannot be set lower than the present preset output current.
Setting limit function
The PAT allows limits to be placed on the voltage and current settings through
CONFIG settings so that the overvoltage protection (OVP trip point) and the
overcurrent protection (OCP trip point) settings are not exceeded.
This function prevents the output from being turned off when you accidentally set
the voltage or current to a value exceeding the OVP or OCP when the output is on.
2
Basic Operation
If you select to limit the voltage setting (CF29: ON), the output voltage can no
longer be set to a value to approximately 95% of the OVP trip point. In addition, the
OVP trip point can no longer be set to a value less than the preset output voltage.
If you select to limit the current setting (CF30: ON), the output current can no
longer be set to a value to approximately 95% of the OCP trip point. In addition, the
OCP trip point can no longer be set to a value less than the preset output current.
Checking the OVP or OCP operation
The OVP or OCP is a function for protecting the load. Once you set the OVP or
OCP trip point, check that the OVP or OCP works before you connect the load by
carrying out the procedure below.
If the voltage limit setting is enabled in the CONFIG settings (CF29: ON), the
output voltage cannot be set higher than the OVP trip point. Thus, you will not be
able to check the OVP operation.
If the current setting limit is enabled in the CONFIG settings (CF30: ON), the
output current cannot be set higher than the OCP trip point. Thus, you will not be
able to check the OCP operation.
1
Check that the OUTPUT LED on the display is not illuminated.
2
Set the output voltage to a value less than the OVP trip point.
3
Press the OUTPUT switch to turn the output on.
The OUTPUT LED illuminates.
4
Turn the VOLTAGE knob slowly clockwise.
PAT-T 27
When the setting value of output voltage exceeds OVP trip point, the ALARM LED on
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
CV
On
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
CV
On
the front panel display illuminates and either of the POWER switch or the output will
be turned off (Depending on the CONFIG settings: CF28).
When the POWER switch is turned off, the ALARM LED illuminates even the power
turns off, and the overvoltage protection (OVP) power-off display will be displayed for
about a few seconds (4 kW type:4 to 5 seconds, 8 kW type:10 to 15 seconds). When
the output is turned off, OVP function display and the measuring value are displayed
alternately and the ALARM LED continues to be illuminated.
C
A
OUTPUT
ALARM
On
OUTPUT
ALARM
On
5
Check that the POWER switch is turned off.
AV
PRESET
AV
A
PRESET
RMT
B
CV
EXTEXT
Fig.2-8 Overvoltage protection
LOCK
(OVP) alarm display
C
RMT
B
CV
EXTEXT
Fig.2-9 Overvoltage protection
LOCK
(OVP) power-off display
Make sure that the POWER switch is in "off" position.
6
Short the output terminal.
7
Turn the POWER switch on again.
8
Check that the OUTPUT LED on the display is not illuminated.
9
Set the output current to a value less than the OCP trip point.
10
Press the OUTPUT switch to turn the output on.
The OUTPUT LED illuminates.
11
Turn the CURRENT knob slowly clockwise.
When the setting value of output current exceeds OCP trip point, the ALARM LED on
the front panel display illuminates and either of the POWER switch or the output will
be turned off (Depending on the CONFIG settings: CF28).
When the POWER switch is turned off, the ALARM LED illuminates even the power
turns off, and the overcurrent protection (OCP) power-off display will be displayed for
about a few seconds (4kW type:4 to 5 seconds, 8kW type:10 to 15 seconds). When the
output is turned off, OCP function display and the measuring value are displayed
alternately and the ALARM LED continues to be illuminated.
Fig.2-10 Overcurrent protection
(OCP) alarm display
Fig.2-11 Overcurrent protection
(OCP) power-off display
If you do not change the preset output, the OVP or OCP will activate again.
28 PAT-T
2.6.2 Other Protection Functions
8kW
8kW
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
CV
On
8kW
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
CV
On
Overheat protection (OHP)
Overheat protection of the bleeder circuit (BOHP)
This function is activated when the internal temperature of the PAT rises
abnormally, and the output turns off (
models when overheat protection (OHP) activates).
It protects the PAT from the following conditions.
• When the PAT is used in an environment exceeding the operation temperature
range temperaaa
• When the PAT is used with the intake or exhaust port blocked
If you turn the POWER switch back on without correcting the condition that caused
the OHP or BOHP, the OHP or BOHP will be activated again.
the breaker trips for 400 V input
2
After the OHP activates on a 400 V input model, it takes between 30
minutes and 1 hour for the internal temperature to decrease. Allow sufficient time
for the PAT to cool down before turning the POWER switch on.
Fig.2-12 Overheat protection (OHP)
alarm display
C
On
On
OUTPUT
ALARM
OUTPUT
ALARM
A
PRESET
AV
A
PRESET
AV
RMT
B
CV
EXTEXT
Fig.2-13 Overheat protection (OHP)
LOCK
power-off display
(
C
RMT
B
CV
Fig.2-14 Overheat protection alarm
EXTEXT
LOCK
display for the bleeder circuit (BOHP)
only on 400 V input model)
Fan failure protection (FAN)
This function is activated when the fan rotation drops to an abnormal level, and the
output turns off.
Fig.2-15 Alarm display of fan
failure protection (FAN)
Basic Operation
PAT-T 29
Incorrect sensing connection protection (SENSE)
EXTEXT
RMT
LOCK
PRESET
A
B
C
AV
OUTPUT
ALARM
CV
On
4kW
See
See
Not set to trip the breaker (OFF)
Set to trip the breaker (ON)
This function is activated when the remote sensing wires are connected with the
polarity reversed of + (pos.) and - (neg.), and the output turns off.
Fig.2-16 Alarm display of incorrect
sensing connection protection
(SENSE)
Input open-phase protection (PHASE)
Three-phase input power supply may operate normally even when one of the phase
is open. However, operating the PAT in an open-phase condition puts stress on the
PAT and may cause a malfunction.
To prevent a malfunction from abnormal input, this function is activated when one
or more phase is open among the three-phase input, and the turns off.
When the PAT operates in the single-phase input mode for 4kW type, this
function (Input open-phase protection (PHASE), becomes invalid.
C
On
OUTPUT
ALARM
A
PRESET
AV
RMT
B
CV
EXTEXT
Fig.2-17 Alarm display of input
LOCK
open-phase protection (PHASE)
p. 65
p. 36
Shutdown (SD)
Shutdown is not activated as a result of the PAT detecting an error. It is a function
used to turn off the output by applying an external signal to the J1 connector on the
rear panel when an abnormal condition occurs.
You can select whether to trip the breaker (CF27: ON/OFF) when the shutdown
signal is applied.
C
A
OUTPUT
ALARM
On
PRESET
AV
Fig.2-18 Alarm display of the shutdown (SD)
A
PRESET
AV
On
OUTPUT
ALARM
Fig.2-19
Shutdown power-off display (SD)
RMT
B
CV
EXTEXT
LOCK
C
RMT
B
CV
EXTEXT
LOCK
30 PAT-T
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