ARTronic ARTon Plus series Service Training Manual Download

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1.5.3 IPMD3P INTELLIGENT POWER MODULE (IPM) DRIVER BOARD

This driver board is used to drive the Intelligent Power Modules which are used in the IGBT rectifier and the
Inverter stages of ARTonPlus Series UPSs ranging from 10kVA to 40kVa.

A) Basic functions of IPMD3P

It takes (CN7) the HF supply signal generated by the power supply board (STP01) and

produces the following DC supply voltages necessary for its operation:

+24V DC

- As soon as HF supply signal is applied to CN7, this +24V is generated and indicated by
LD2 (green LED) on the board.

Four dif15V DC supply voltages which are all floating. These isolated supply

voltages are used for driving the gates of the IGBTs (six IGBTs connected to form a three-phase

full bridge) in the IPM.

The HF supply signal coming to CN7, is passed through the NO contact of RL1 relay and

distubuted to the electronic control boards of the UPS via CN3, CN4, CN5 and CN6 sockets.

IPMD3P board monitors the (+) battery voltage (DC bus voltage) connected to CN2. If this

voltage reaches to a certain predetermined value, RL1 is turned on and HF supply voltage is
applied to all electronic boards and this is indicated by LD1 (green). If the (+) DC bus voltage is
below that value, RL1 is de-energized and the supply voltage to electronic control boards and to
the IGBT drivers are turned off.

This board accepts (CN1) the driving signals generated by the rectifier controller board

(PFC3P-R1) or by the main controller board (P3MC-R5) and transfers them to the gates of the
IGBTs through optical isolators.

This board sends back a fault signal (overtemperature or overcurrent) generated by the IPM to the
controller board (either PFC3P-R1 or P3MC-R5). This fault signal is available at CN1-1.

The jumper JP1 on this board can be short-circuited to simulate a fault signal for test

purposes (JP1 is normally open).

The (+) DC bus voltage (battery voltage) connected to CN2 is used to supply (+) battery

voltage sample to the main controller board (CN1-2)

B)  IPMD3P Board Test Points

-TP1   :  GND4  (R-phase, upper -leg driving supply common point)
-TP2   :  VCC4  (          ‘’              ‘’                 ‘’            +15Vdc)
-TP3   :  GND3  (S-phase, upper-leg driving supply common point)
-TP4   :  VCC3  (       ‘’              ‘’                 ‘’                +15Vdc)
-TP5   :  GND2  (T-phase, upper-leg driving supply common point)
-TP6   :  VCC2  (        ‘’              ‘’            ‘’                    +15Vdc)
-TP7   :  GND1  (R, S and T-phases, lower-legs driving supply common point)
-TP8   :  VCC1 (      ‘’             ‘’                ‘’                  ‘’           +15Vdc)

Note1:

In a ARTonPlus Series UPS, there are two IPMD3P boards; one for driving the rectifier IPM

and one for driving the inverter IPM.

Note2:

The same IPM driver board can be used in the following UPS units without any change:

        -10kVA   3Ph/3Ph UPS
        -15kVA           ‘’
        -20kVA           ‘’
        -30kVA           ‘’
        -40kVA           ‘’