Kikusui PAT20-200T 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
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 set-
ting, 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.
Applicable firmware version of the PAT-T Series
This manual applies to 8 kW type products with firmware ver-
sion 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)
•Firmwareversion
• Serial number (indicated at the bottom section on the rear
panel)
This product information can also be obtained using the *IDN?
remote control command.
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 man-
ual 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
Notations Used in This Manual
WARNING
CAUTION
See
Ope
4kW
8kW
Memo
OUTPUT terminal cover set
(Output protection covers, Screws)
2sets
Terminal block cover
(Terminal block cover, screws) [Only 4 kW type]
1set
Output
terminal bolt
(Bolts, Nuts,
Spring washers)
PAT20-400T/ PAT30-266T M12 (2 sets)
PAT20-200T/ PAT40-100T/
PAT60-67T/ PAT160-25T
PAT40-200T/ PAT60-133T/
PAT80-100T/ PAT160-50T
M10 (2 sets)
PAT250-32T/ PAT350-22.8T/
PAT500-16T/ PAT650-12.3T/
PAT850-9.4T
M8 (2 sets)
J1/ J2 connector kit
(Protection covers, sockets, pins)
1set
Chassis connection wire set
(Chassis connection wire, screw)
1set
Heavy object warning label 1 pc.
Setup guide 1 pc.
Quick reference 1 pc.
(English)
1pc.
(Japanese)
Safety information 1 pc.
CD-ROM 1 pc.
Checking the Package Contents

PAT-T 3
Contents
Contents by Function ............................................................................................. 6
Front panel ............................................................................................................. 8
Rear panel ............................................................................................................ 10
1Load and cable
1.1 Load Considerations .................................................................................................12
1.2 Load Cable................................................................................................................ 14
2Basic 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
3External 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
4Parallel/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

4PAT-T
4.2.2 Load Connection (Series Operation)............................................................. 80
4.2.3 Series Operation Setup ................................................................................. 81
4.2.4 Starting the Series Operation ........................................................................ 81
5Maintenance
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

PAT-T 5
This page is intentionally blank.

6PAT-T
Contents by Function
• I want to check the accessories. ➔1.1, "Checking the Package Contents" p. 2
• The installation space is limited. How much space is
needed around the air inlet and outlet?
➔For information about precautions concern-
ing installation, see the accompanying setup
guide or safety information.
---
• How do I connect the AC power supply? ➔For information about connecting the power
cable, see the accompanying setup guide. ---
• 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?
➔1.2, "Load Cable" p. 14
• The wire connecting the load is long (distance to the
load is long), but stable voltage is required.
➔2.11, "Remote Sensing Function" p. 43
• How do I rack mount the PAT? What kind of parts is
needed?
➔" Options" p. 96
• How do I set the communication conditions for remote
control?
➔See the Communication Interface Manual
on the CD-ROM. ---
• How do I control the output voltage using an external
DC voltage?
➔3.4.1, "External Voltage (Vext) Control" p. 55
• How do I increase the current capacity in parallel
operation?
➔4.1, "Master-Slave Parallel Operation" p. 70
• 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?
➔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)"
p. 18
p. 24
p. 26
• How do I reset the PAT to factory default settings? ➔2.12, "Factory Default Settings" p. 46
Preparation
Setting
4kW

PAT-T 7
Trobleshooting... See "A.2 Troubleshooting" on page 99.
• How can I use the PAT as a constant voltage power
supply (CV)?
➔
2.5, "Using the PAT as a CV or CC Power
Supply"
p. 24
• 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?
➔2.8, "Preset Memory Function" p. 41
• How do I set the upper limit to prevent the voltage
from being increased too much?
➔" Setting limit function" p. 27
• How do I set the voltage in fine resolution? ➔" Fine adjustment function" p. 24
• How do I set the protection function to prevent
damage to the load?
➔2.6, "Protection Functions and Alarms" p. 25
➔2.6.1, "Overvoltage protection (OVP) and
overcurrent protection (OCP)" p. 26
• How do I cut off the output at a different time from
other power supplies?
➔" Output on/off delay functions" p. 21
• How can I monitor the output voltage and output
current?
➔3.8, "External Monitoring" p. 67
• How do I temporarily lock the keys? ➔2.9, "Lock Function" p. 42
• How do I use the sample program for remote control? ➔See the Communication Interface Manual
on the CD-ROM. ---
• How do I display a slave unit's current during parallel
operation?
➔4.1.1, "Functions during Master-Slave
Parallel Operation" p. 70
• How can I use the PAT in the single-
phase input ?
➔POWER switch
2.7, "CONFIG Settings"
p. 9
p. 31
• 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)
➔
• How do I clean the dust filter? ➔"Cleaning the Dust Filter" p. 84
• How do I check for breaks and tears in the insulation?➔5.1, "Inspection" p. 84
• How do I calibrate the PAT-T series? ➔5.2, "Calibration" p. 87
Operation
4kW
4kW
4kW
Maintenance

8PAT-T
Front panel
Examples of PAT20-400T
CV
EXTEXT
RMTRMT
LOCK
PRESET
ABC
AV
OUTPUT
ALARM
CCCC
CC
V
0-
16
679
13
14
15
21
20
19
18
17
12
11
810
0-
1
234
5
Display and keys

PAT-T 9
No. Name Function
+SHIFT
1POWER switch Power on/off lever
Raise the lever to turn the power on ( ). Lower to turn the power off ( ). –
POWER
switch +STORE To change the phase input mode to the single-phase input,
press the POWER switch with pressing the STORE key.*1
*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.
–
2OUTPUT switch Output on/off switch. p. 20
3CURRENT knob Used to set the current value or select the CONFIG parameter number. –
FINE Current adjustment knob when the fine adjustment function is enabled. p. 24
4VOLTAGE knob Used set the voltage value or change the CONFIG parameter setting. –
FINE Voltage adjustment knob when the fine adjustment function is enabled. p. 24
5Air inlet (louver) Inlet for taking in air from the outside. A dust filter is built in. p. 84
6Ammeter Displays the current value or the CONFIG parameter number. –
7CC Illuminates in constant current mode. p. 24
8Voltmeter Displays the voltage value or the CONFIG parameter setting. –
9PRESET The LED of the preset memory in use illuminates. p. 41
10 CV Illuminates during constant voltage mode. p. 24
11 OUTPUT LED Illuminates when output is on and turns off when output is off. p. 19
12 ALARM LED Illuminates when a protection circuit is activated. p. 25
13 RMT LED Illuminates when operating in remote control. p. 43
14 EXT LED Illuminates when operating in external control, or when used as a slave unit in
master-slave parallel operation.
p. 48
p. 71
15 LOCK LED Illuminates when panel operations except turning the output on/off and viewing
settings. p. 42
16 SET key Key for setting and checking the output voltage or output current (the key has
an LED). p. 24
RECALL A Key for recalling the value of preset memory A. p. 41
A key +STORE Key for saving the value to preset memory A. Press STORE and then A. p. 41
17 OVP•OCP key Key for setting and checking the trip points of the overvoltage protection (OVP)
and overcurrent protection (OCP) (the key has an LED). p. 26
RECALL B Key for recalling the value of preset memory B. p. 41
B key +STORE Key for saving the value to preset memory B. Press STORE and then B. p. 41
18 CONFIG Key for setting various conditions concerning the operation (the key has an
LED). p. 31
RECALL C Key for recalling the value of preset memory C. p. 41
C key +STORE Key for saving the value to preset memory C. Press STORE and then C. p. 41
19 –STORE Key for storing the preset memory. p. 41
20 –SHIFT
Key for calling up the functions marked in blue characters. –
21 LOCAL key Key for changing between remote and local modes. p. 43
LOCK Key for disabling only the operations that change the settings (keeping the
display and recall operations enabled). p. 42
See
4kW

10 PAT-T
Rear panel
Examples of PAT40-100T (4 kW type)
Examples of PAT20-400T (8 kW type)
No. Name Function
22 J1 Connector for external analog control. p. 48
23 J2 Connector for parallel operation. p. 72
24 Option slot Slot for installing the optional interface board (GPIB, USB or LAN). A factory option.
Interface
manual
25 Chassis terminal Terminal used to ground the output.
26 DC OUTPUT Output terminal. p. 14
27 Air outlet Exhaust port for cooling.
Setup
guide
28 AC INPUT Input terminal (Three-phase input/ single-Phase input, Including the GND terminal).
Input terminal (Including the GND terminal).
29 Serial number The serial number of the PAT. –
30 Sensing terminal A terminal used to connect the sensing wires. p. 43
31 Sensing switch Switch for enabling/disabling remote sensing.
32 RS232C Connector for the RS-232C cable.
Interface
manual
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

Load and cable
This chapter describes the
consideration to be given to the load
and explains how to connect the load
wires.

12 PAT-T
1.1 Load Considerations
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.
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 RDas shown in Fig.1-3 to bypass the
reverse current. However, the amount of current to the load decreases by max.
reverse current Irp.
Fig.1-3 Remedy for regenerative load
Fig.1-1 Load current with peaks Fig.1-2 Pulse-shaped load current
Preset constant current value
Ammeter reading
(average value)
Preset constant current value
Ammeter reading
(average value)
IO
RD
EO
Equivalent circuit of the PAT Regenerative load
−+
0
Reverse current
-IO
+IO
Irp
RD[Ω] ≤EO[V]
I
rp
[A]
RD: Reverse current bypass dummy load
EO: Output voltage
I
rp : Max. reverse current
Output current waveform
Load

PAT-T 13
1
Load and cable
• Use a resistor with sufficient rated power for resistor RD.
• If a resistor with insufficient rated power for the circuit is used, resistor RD
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 (DRP) between the
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
• 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-current-
prevention diode DRP. Reverse-current-prevention diode DRP may burn out
with inadequate heat dissipation.
CAUTION
PAT Load with accumulated
energy
DRP: Reverse-current-prevention diode
DRP
CAUTION

14 PAT-T
1.2 Load Cable
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 coveringmaterials.
Possible electric shock.
• Use a load cable with a higher voltage ratingthan 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.
WARNING

PAT-T 15
1
Load and cable
Table 1-1 Nominal cross-sectional area of cables and allowable
currents
■Takingmeasures against noise
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 sensingfunction
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.
Nominal cross-
sectional area
[mm2]
AWG
(Reference cross-
sectional area)
[mm2]
Allowable current*1
[A] (Ta = 30 °C)
*1. Excerpts from Japanese laws related to electrical equipment.
Current
recommended by
Kikusui [A]
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

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.

18 PAT-T
2.1 Phase input mode
The input power mode of the PAT (4kW type) can be switched to either three-phase
input or the single-phase input.
p. 31 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”.
“Specification” The principal of difference in specifications for the phase input mode are described
as follows.
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 single-
phase input mode, the output current will be limited to 75 % of the rating of three-
phase input mode. Confirm the status of phase input mode and the input wirings
properly.
4kW
See
Descriptions Three-phase input mode Single-phase input mode
Output power 4 kW 3 kW
Output current setting
range
0 % to 105 % of rtg*1
*1. rtg : Indicates the rated output
0 % to 105 % of rtg x 75 %*1
Overcurrent protection
(OCP) setting range
10 % to 111.5 ％of the rated
output current
(10 % to 111.5 ％x 75 %) of the rated
output current
Input open-phase
protection (PHASE)
Turns the output off. ALARM
LED illuminates.
Cancels the Input open-phase
protection feature.
●Monitor signal output
(IMON) (Current)
at rated current output
10.00 V±0.25 V 7.50 V±0.25 V
The upper limit is set at 75 % of the
rating of the three-phase input mode
●External control
EXT-V CC CONT
(CC external voltage
control)
0 % to 100 % of the rated
output current in the range of
0 V to 10 V
0 % to 75% of the rated output current
(of the three-phase input mode) in the
range of 0 V to 7.5 V
.
EXT-R CC CONT
(CC external resistance
control normal)
0 % to 100 % of the rated
output current in the range of
0 kΩto 10 kΩ
.
0 % to 75 % of the rated output
current (of the three-phase input
mode) in the range of 0 kΩto 7.5 kΩ
EXT-R CC CONT
(CC external resistance
control fail safe)
100 % to 0 % of the rated
output current in the range of
0 kΩto 10 kΩ
75 % to 0 % of the rated output
current (of the three-phase input
mode) in the range of 0 kΩto 7.5 kΩ

PAT-T 19
2
Basic Operation
2.2 Measured Value Display and SettingDisplay
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.
Fig.2-1 Measured value display
example
■Settingdisplay
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.
Fig.2-2 Setting display example of
the output voltage and output
current
p. 41 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
See
EXTEXT
RMT
LOCK
PRESET
ABC
AV
OUTPUT
ALARM
Key turned off
CV
EXTEXT
RMT
LOCK
PRESET
ABC
AV
OUTPUT
ALARM
On
See
EXTEXT
RMT
LOCK
PRESET
ABC
AV
OUTPUT
ALARM
On
EXTEXT
RMT
LOCK
PRESET
ABC
AV
OUTPUT
ALARM
On

20 PAT-T
2.3 Output Operation
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 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.
p. 46, p. 63 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.
4kW
See
EXTEXT
RMT
LOCK
PRESET
ABC
AV
OUTPUT
ALARM
CV
On
See
CAUTION