RPS, Technical information, IT-HIST-MST mC-022.
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Subject: Firmware history for systems MST from 125kVA to 200kVA.
A. Pajola, Date: 10/12/20
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Modification category:
N=new feature
I=improvement
B=bug fix
C=critical bug fix
T=technical

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FW022-0338: Tt6_0338.mot    [26/11/20] CRC32:[C3B36F97] 3Ph/Standard production
            Tt6_0338_L2.mot [09/12/20] CRC32:[D939F3A8] 3Ph/Extended language
            Tt6_0338_L3.mot [09/12/20] CRC32:[82C4C41E] 3Ph/Extended language

Supported languages: English, French, German, Italian, Spanish, Polish, Chinese, Russian
Supported languages L2: English, Chinese, Hungarian, Czech, Finnish, Turkish, Swedish, Portuguese
Supported languages L3: English, Chinese, Hungarian, Czech, Finnish, Swedish, Ukrainian, Danish

N -  Added the Ukrainian language in the third group of languages (_L3).

N -  Added a configuration of "high frequency operation at low loads" for UPS
     MST 160-200kVA that allows high noise reduction.
     The activation thresholds are: load<=70% in single mode and load<=50% in
     parallel mode.
     Important note: in high frequency operation the UPS efficiency is lower
     than in normal frequency operation.
     To active this operation you must use GpConfig version 3.0.1 or later
     and you must insert the password for advanced service.

I -  Added a configuration of "high frequency operation during the short-circuit"
     to increase the short-circuit current for UPS MST 160-200kVA.
     To active this operation you must use GpConfig version 3.0.1 or later
     and you must insert the password for advanced service.

I -  Improved the return sequence on inverter in the event of a bypass line failure.

I -  Changed the CB current value with CB_OFF command active. Before the change
     the current supplied by the battery charger in case of CB_OFF command active
     was 0.3A, now the charger is complitely off.

B -  Added a redundant safety control in the emergency bypass function to avoid
     every possibility of system crash in case of simultaneous failure of all UPSs
     in a parallel system.

B -  Fixed bug of the battery present test (in a common batteries configuration and
     in case of batteries not present) for which the UPS Master incorrectly reported
     the message "Replace Battery" instead of "Battery not present".

B -  Fixed bug related to the battery status synchronized command in a parallel
     system. In very rare circumstances slave UPSs could receive two inconsistent
     abnormal messages "(+)Battery not present" and "(-)Battery not present".
     
T -  Increased the current offset of the battery charger to compensate an
     hardware modification of the battery charger board 9UB0084 (CB 25A).

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FW022-0337: Tt6_0337.mot    [02/11/20] CRC32:[689BD219] 3Ph/Standard production

Supported languages: English, French, German, Italian, Spanish, Polish, Chinese, Russian

Note: not released

T -  Extended the structure for managing the sending of the configuration pages
     in a parallel system.

T -  Added the sending of the configuration pages nr.13/14/15 in a parallel system.

T -  Added in the history the recording of the variations of the parameter Dcode_l.

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FW022-0336: Tt6_0336.mot    [23/02/18] CRC32:[42229E7A] 3Ph/Standard production

Supported languages: English, French, German, Italian, Spanish, Polish, Chinese, Russian

Note: used only for special production

N -  Added a new feature that allows to mask the bypass line alarms
     ("Mask bypass alarms" in the configuration software).

T -  Added a new configuration word (Config_10).

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FW022-0335: Tt6_0335.mot    [12/01/18] CRC32:[1F517772] 3Ph/Standard production

Supported languages: English, French, German, Italian, Spanish, Polish, Chinese, Russian

Note: used only for special production

I  - Added a function to change the Master in a parallel system, when the
     battery voltage (of the UPS Master) reaches the cut-off threshold.

T  - Increased the time margin for overload counters.

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FW022-0334: Tt6_0334.mot    [31/05/17] CRC32:[3C1A96C0] 3Ph/Standard production

Supported languages: English, French, German, Italian, Spanish, Polish, Chinese, Russian

Note: used only for special production

N  - Added new features required for a customized version (see AF 1167).
     To activate these features is necessary to set a special customer code.

T  - Modified the threshold for the battery voltage measurement redundancy error
     (only for CSS models).

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FW022-0333: Tt6_0333.mot    [27/03/17] CRC32:[67C4DE5E] 3Ph/Standard production
            Tt6_0333_L2.mot [27/03/17] CRC32:[C11483AD] 3Ph/Extended language

Supported languages: English, French, German, Italian, Spanish, Polish, Chinese, Russian
Supported languages L2: English, Chinese, Hungarian, Czech, Finnish, Turkish, Swedish, Portuguese
Supported languages L3: English, Chinese, Hungarian, Czech, Finnish, Swedish, Portuguese, Danish

N  - Added the Danish language in the third group of languages (_L3).

I  - Added a firmware feature to handle a particular and rare failure of the
     auxiliary power supply.

I  - Adjusted the discharge curves for batteries larger than 40Ah for low
     discharge currents.

B  - Fixed issue of the direct passage from "Stand-by off" mode to
     "On line mode" or to "Eco mode" (without passing to "Stand-by mode").
     The problem was that the UPS stayed in "Starting" status without changes
     operating mode.

B  - Fixed issue of the wrong autonomy estimation during a "Battery autonomy
     test".

B  - Fixed some Spanish language translations.

T  - Changed the sequence to resume from a lock status in "Eco mode" without
     passing to "Stand-by mode".

T  - Setted the parameter K_dec (to adjust the battery discharge time ) to the
     default value if it has not been initialized by the test program.

T  - Cleared the parameter Delay_power_off if it has never been configured.

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FW022-0332: Tt6_0332.mot    [29/03/16] CRC32:[40F4CA6F] 3Ph/Standard production
            Tt6_0332_L2.mot NOT PRODUCED                3Ph/Extended language

Note: used only for special production

N  - Added management of a SWBAT auxiliary input configurable on INPUT #3.
     Closing the contact (pin 7 and pin 15 of AS400 port) the UPS signals the
     anomaly "[A42] BATTERY SWITCH OPEN".
     To enable the function you must use GpConfig version 1.5.6 or higher
     (External I-O->Input contact->Input 3 mode->SWBAT status).

N  - Added a function to command the opening of an external battery switch
     in case of EPO or Remote_OFF command, using an output contact of the
     MultiCom 382/392 card. You can select the function on the "Output 4" of the
     MultiCom 382 card or on the "Output 1 to 8" of the MultiCom 392 card.
     If the function "SWBAT open cmd x EPO" is selected, when the command EPO is
     actived, an impluse of 0.5sec is generated and then the output of the UPS
     is turned off.
     If the function "SWBAT open cmd x ROFF" is selected, when the command EPO
     or the command Remote_OFF is actived, an impluse of 0.5sec is generated and
     then the output of the UPS is turned off.
     To enable the function you must use GpConfig version 1.5.6 or higher
     (External I-O->Output contact->Output mode->SWBAT open cmd x ...).

I  - Added the possibility to reduce the short-circuit time up to 200ms.
     The default value remains of 500ms.
     To change the time you must use GpConfig version 1.5.6 or higher and
     you must insert the password for advanced service.

I  - Added management of the card MultiCom 382 also for CSS.
     To enable the function you must use GpConfig version 1.5.6 or higher
     (External I-O->I/O card model->Multicom 382 [4 out]).

T  - The Customer_code is now initialized to zero ("Not personalized").

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FW022-0331: Tt6_0331.mot    [02/03/16] CRC32:[2E7371B3] 3Ph/Standard production
            Tt6_0331_L2.mot [02/03/16] CRC32:[8CF02306] 3Ph/Extended language

I  - Enabled by default the "Input filter" filter for measuring the frequency
     of input.

I  - Added the management of the customer customization code for the display
     custom phone number in alerts service call (only for the Italian language).

B  - Adding saturation at 0C of the temperature of the system to avoid numeric
     underflow in case of temperatures below 3C.

B  - Disabled the set of three-phase control bypass if synchronization inverters
     set to the external_sync signal.

T  - Only for 160/200kVA: added the possibility to reset the memory of the
     alarm "IGBT PROTECTION DETECTED [L48]" from LCD panel. To reset the alarm
     press the key with the bell symbol.

T  - Only for 160/200kVA: changed recirculation load from 90% to 75% and
     modified the algorithm of the fan speed during recirculation test
     (minimum fan speed up to 75C).

T  - Only for 160/200kVA: masked the alarms relating to the temperature sensors
     if the auxiliary power is not ok.

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FW022-0224: Tt6_0224.mot    [18/02/15] CRC32:[5208183F] 3Ph/Standard production
            Tt6_0224_L2.mot [18/02/15] CRC32:[2567E886] 3Ph/Extended language

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