Firmware Updater
This software is to update the firmware version of the PCR-WEA/WEA2 Series.
*The updater files for the firmware Ver3.X and Ver4.X are different.
Update method
Save the update files (Update.img, CHECKSUM.md5) in the root directory of a USB memory device. Do not change the names of the update files.
Update procedure
- Press CONFIG (SHIFT+OPR MODE) > 1/3 (F6) > UPDATE (F5).
- Insert the USB memory device containing the update files into the USB port on the front panel. (A USB detected message appears.)
- Press EXEC (F5).
- Press OK (F4). Do not turn off the main power while the update is in progress. Do not remove the USB memory device.
- Turn off the main power of the PCR-WEA/WEA2, and remove the USB memory device.
Next, check that the firmware has been updated properly.
Firmware version check procedure
- Press CONFIG (SHIFT + OPR MODE) > MODEL ID (F5) to display the firmware version.
If Firmware Version 3.xx or Firmware Version 4.xx is displayed on the instrument panel, the update has been completed properly.
If the PCR-WEA/PCR-WEA2 does not start even if you followed the procedure, if the firmware version is displayed as *3.xx or *4.xx, or if something is unclear, contact your Kikusui agent or Kikusui services (service@kikusui.co.jp).
After the update has been completed properly, reset the PCR-WEA/PCR-WEA2 to its factory default conditions.
Factory default reset procedure
- Press CONFIG (SHIFT+OPR MODE) > 1/3 (F6) > SANITIZE (F4).
- Press EXEC (F5) > OK (F4). The PCR-WEA/PCR-WEA2 will restart with the factory default conditions.
This completes the firmware update task.
Ver.
Ver.3.x
3.31
Ver.4.x
4.19
Last update
2025/9/18
Configuration
Ver.3.x
- Applicable products: PCR-WEA/WEA2 series Ver3.x
Ver.4.x
- Applicable products: PCR-WEA/WEA2 series Ver4.x
Updating is not possible on a parallel operation system. Switch to standalone operation first. Set the rotary switches for the address and the number of slave units on the master unit and all slave units to zero, and then start the update.
[Precautions for parallel operation]
– When mixing PCR-WE and PCR-WEA and operating them in parallel, be sure to set PCR-WE as the master unit.
– PCR-WE requires firmware Ver. 1.47 or later.
– PCR-WEA Ver. 3.x requires firmware Ver. 3.22 or later.
– PCR-WEA Ver. 4.x requires firmware Ver. 4.10 or later.
*The master unit has the following additional conditions.
– PCR-WE requires firmware Ver. 1.48 or later.
– PCR-WEA Ver. 3.x requires firmware Ver. 3.25 or later.
– PCR-WEA Ver. 4.x requires firmware Ver. 4.12 or later.
Download
Ver.3.x
Ver.4.x
Release Note
Ver.3.x
Ver 3.31
2025-9-18
PCR-WEA firmware
Resolved issues
Fixed the issue where the average power value obtained with the FETC:POW:DC? command may not match the actual output value.
Ver 3.30
2025-9-18
PCR-WEA firmware
Improvement
Changed the operation so that when the output method is set to single-phase three-wire output or three-phase output, and 15 kW or more is applied to any one phase, [ALM-02 OPP] is generated and the power is immediately limited.
Resolved issues
Fixed the issue where the OUTPUT key could not turn off the output while waiting for ENT key input or during date/time setting in the following setting screens: brbr･Output method brbr･U-phase offset release brbr･Operation when the current limit value is exceeded brbr･Compensation function brbr･Response brbr･Reset
Resolved issues
Fixed the issue where, when setting the output voltage offset with the numeric keypad, it could be set to the ones digit even though the setting resolution is 10.
Resolved issues
Fixed the issue where the cursor position becomes invalid in the following settings: brbr･Output voltage offset setting brbr･IPv6 subnet prefix length setting
Resolved issues
Fixed the issue where pressing an unassigned key (F6) during time zone setting causes a return to Config item (2/3).
Resolved issues
Fixed the issue where, after editing in the sequence function step editing screen, changing the output method via [OPR MODE > WIRING (F5)] and then reopening the step editing screen to edit again causes a freeze.
Resolved issues
Fixed the issue where, when a channel controlled by external control (external contact) is set to output ON/OFF, repeatedly toggling output ON/OFF at short intervals from the external contact may cause a mismatch between the external contact status and the actual output status.
Resolved issues
Fixed the issue where, when the control target of the analog signal is set to EXTDC and the output method is switched, the synchronization function ON/OFF setting and output ON phase setting in the switched output method are initialized.
Resolved issues
Fixed the issue where, when a power module is suspended by the power-saving operation function or the power module management function, the value set in the analog monitor output gain adjustment is not reflected.
Resolved issues
Fixed the issue where, when firmware update is executed in a state where update cannot be performed, and update is executed again before the displayed error message disappears, the screen transitions to the factory default setting screen.
Resolved issues
Fixed the issue where the measurement unit of the FREQ:SYNC:PHAS:DEL command was HZ instead of DEG.
Ver 3.28
2024-5-30
PCR-WEA firmware
Resolved issues
Regarding the synchronization function, a problem causing a difference between the frequency value displayed on the screen and the actual output frequency has been fixed.
Ver 3.26
2024-3-18
PCR-WEA firmware
Resolved issues
Resolved the following issues regarding the WAVE:DATA:ARB command under specific conditions. brbr- Issue that causes command errors brbr- Issue where the output of the set user-defined waveform is partially different from the setting
Resolved issues
Resolved the issue where the setting ranges of the following limit values are occasionally incorrect after changing the output method settings (three-phase -> single-phase/single-phase three-wire output, single-phase three-wire -> single-phase output). brbr- Upper and lower DC voltage limits brbr- Upper and lower frequency limits
Resolved issues
Resolved the standard of harmonic current analysis function (phase angle) from U-phase current fundamental wave to U-phase voltage fundamental wave.
Ver 3.25
2023-3-24
PCR-WEA firmware
Resolved issues
Fixed the issue where the display updating process of the front panel stops when the sequence function is executed during parallel operation.
Ver 3.22
2023-1-24
PCR-WEA firmware
Improvement
Fixed the output shutoff process when protection function [ALM-02-03 P.U OHP], [ALM-02-04 P.U OHP], or [ALM-02-05 P.U OHP] is detected.
Resolved issues
Fixed the issue that the maximum expected power display on the front panel may not be updated when the following I/F commands are sent:
Deprecated
SYST:CONF:FORM:PSAV:RES
Deprecated
SYST:CONF:FORM:PSAV:MOD
Deprecated
SYST:CONF:FORM:PSAV:MAX
Resolved issues
Fixed the issue of freezing when another command is sent during the process of an *OPC? or *WAI command.
Resolved issues
Standardized the size of the numerical keypad and F/I/V keys of the Web browser interface.
Ver 3.21
2022-11-01
PCR-WEA firmware
New Feature
Added detection item “TRBL-14-09 INV TYPE MISSMATCH” to the protection function.
Ver 3.19
2022-10-03
PCR-WEA firmware
Resolved issues
Fixed the issue that the screen may transition to the executing screen when a SIM: START RUN command is sent even if the execution conditions of SIM functions are not satisfied.
Resolved issues
Fixed the issue that the setting values related to current limit values result in an out-of-range error when factory default setting (sanitization) or reset setting is performed on 500Hz Limit models.
Resolved issues
Fixed the issue that the output capacity is not displayed when set to 0kVA in PowerSave of the power-saving function.
Resolved issues
Fixed the issue that power unit update fails in firmware update.
Resolved issues
Fixed the issue that ramp control continues until the output voltage waveform sticks to the positive peak or negative peak when running a DC voltage ramp output sequence with the ending phase angle enabled.
Resolved issues
Fixed the issue that [TRBL-20-00 MEAS.FAIL] occurs while a sequence is running.
Ver 3.17
2022-3-25
PCR-WEA firmware
Resolved issues
Fixed the issue of falsely detecting [TRBL-03-06 HW Failure] at power-on in very rare cases.
Ver 3.16
2022-2-02
PCR-WEA firmware
Resolved issues
Fixed the issue that the calibration value may not be written correctly.
Resolved issues
Fixed the issue that unit display of output impedance may be abnormal.
Ver 3.15
2022-1-12
PCR-WEA firmware
Resolved issues
Fixed the issue of analog monitor output malfunction. - Fixed the issue where the gain of other channels changes. - Fixed the issue where the analog monitor settings that were set immediately before are not reproduced.
Resolved issues
Fixed the issue of abnormal screen display when setting a value out of range with the PROG:EDIT:JUMP command.
Resolved issues
Fixed the issue of freezing during GPIB communication.
Ver.4.x
Ver 4.19
2025-9-18
PCR-WEA LCD firmware
Resolved issues
Fixed the issue where the average power value obtained with the FETC:POW:DC? command may not match the actual output value.
Ver 4.18
2025-9-18
PCR-WEA LCD firmware
Improvement
Changed the operation so that when the output method is set to single-phase three-wire output or three-phase output, and 15 kW or more is applied to any one phase, [ALM-02 OPP] is generated and the power is immediately limited.
Resolved issues
Fixed the issue where the OUTPUT key could not turn off the output while waiting for ENT key input or during date/time setting in the following setting screens: brbr･Output method brbr･U-phase offset release brbr･Operation when the current limit value is exceeded brbr･Compensation function brbr･Response brbr･Reset
Resolved issues
Fixed the issue where, when setting the output voltage offset with the numeric keypad, it could be set to the ones digit even though the setting resolution is 10.
Resolved issues
Fixed the issue where the cursor position becomes invalid in the following settings: brbr･Output voltage offset setting brbr･IPv6 subnet prefix length setting
Resolved issues
Fixed the issue where pressing an unassigned key (F6) during time zone setting causes a return to Config item (2/3).
Resolved issues
Fixed the issue where, after editing in the sequence function step editing screen, changing the output method via [OPR MODE > WIRING (F5)] and then reopening the step editing screen to edit again causes a freeze.
Resolved issues
Fixed the issue where, after performing both of the following operations and then editing a step of the sequence function in any output method, the sequence function settings in the output method at the time of power-off may be initialized when the power is turned off: brbr･Set the output method to single-phase three-wire output and open the sequence function step editing screen brbr･Set the output method to three-phase output and open the sequence function step editing screen
Resolved issues
Fixed the issue where, when a channel controlled by external control (external contact) is set to output ON/OFF, repeatedly toggling output ON/OFF at short intervals from the external contact may cause a mismatch between the external contact status and the actual output status.
Resolved issues
Fixed the issue where, when the control target of the analog signal is set to EXTDC and the output method is switched, the synchronization function ON/OFF setting and output ON phase setting in the switched output method are initialized.
Resolved issues
Fixed the issue where, when a power module is suspended by the power-saving operation function or the power module management function, the value set in the analog monitor output gain adjustment is not reflected.
Resolved issues
Fixed the issue where, when firmware update is executed in a state where update cannot be performed, and update is executed again before the displayed error message disappears, the screen transitions to the factory default setting screen.
Resolved issues
Fixed the issue where the measurement unit of the FREQ:SYNC:PHAS:DEL command was HZ instead of DEG.
Ver 4.16
2024-5-30
PCR-WEA LCD firmware
Resolved issues
Regarding the synchronization function, a problem causing a difference between the frequency value displayed on the screen and the actual output frequency has been fixed.
Ver 4.14
2024-3-18
PCR-WEA LCD firmware
Resolved issues
Resolved a spelling mistake of a function key (TLIP TIM -> TRIP TIM).
Resolved issues
Resolved the following issues regarding the WAVE:DATA:ARB command under specific conditions. brbr- Issue that causes command errors brbr- Issue where the output of the set user-defined waveform is partially different from the setting
Resolved issues
Resolved the issue where the setting ranges of the following limit values are occasionally incorrect after changing the output method settings (three-phase -> single-phase/single-phase three-wire output, single-phase three-wire -> single-phase output). brbr- Upper and lower DC voltage limits brbr- Upper and lower frequency limits
Resolved issues
Resolved the standard of harmonic current analysis function (phase angle) from U-phase current fundamental wave to U-phase voltage fundamental wave.
Ver 4.12
2023-3-29
PCR-WEA LCD firmware
Resolved issues
Fixed the issue where the display updating process of the front panel stops when the sequence function is executed during parallel operation.
Ver 4.10
2023-1-24
PCR-WEA LCD firmware
Improvement
Fixed the output shutoff process when protection function [ALM-02-03 P.U OHP], [ALM-02-04 P.U OHP], or [ALM-02-05 P.U OHP] is detected.
Resolved issues
Fixed the issue that the maximum expected power display on the front panel may not be updated when the following I/F commands are sent:
Deprecated
SYST:CONF:FORM:PSAV:RES
Deprecated
SYST:CONF:FORM:PSAV:MOD
Deprecated
SYST:CONF:FORM:PSAV:MAX
Resolved issues
Fixed the issue of freezing when another command is sent during the process of an *OPC? or *WAI command.
Resolved issues
Standardized the size of the numerical keypad and F/I/V keys of the Web browser interface.
New Feature
Added the 400 V regenerative model.
Ver 4.02
2022-11-02
PCR-WEA LCD firmware
New Feature
Added detection item “TRBL-14-09 INV TYPE MISSMATCH” to the protection function.
Ver 4.01
2022-10-12
PCR-WEA LCD firmware
Resolved issues
Fixed the issue that power unit update fails in firmware update.
Resolved issues
Fixed the issue that ramp control continues until the output voltage waveform sticks to the positive peak or negative peak when running a DC voltage ramp output sequence with the ending phase angle enabled.
Resolved issues
Fixed the issue that [TRBL-20-00 MEAS.FAIL] occurs while a sequence is running.
