Hitachi L300P Series service manual Debug Mode, Monitor mode

3.Debug Mode

Additional displays as follows can be seen by turning Debug mode ON (C091 ->1).

3.1 Monitor mode

No	Functional	Display code	SJ300/L300P A Monitor or data range
1	Control frequency monitor	d101	0.00-99.99/100.0-400.0Hz
2	Direct-current voltage monitor	d102	0.0-999.9V
3	BRD on-monitor	d103	0.00-99.99/100.0s
4	Electronic thermal monitor	d104	0.00-99.99/100.0%
5	Gate array trip factor monitor	d105	00-FF
6	MCU No. monitor	d106	0000-9999

d101 ( Output frequency monitor (Hz)): Monitor of the output frequency of the inverter.

d102 ( DC bus voltage monitor (V)): Monitor of the DC bus voltage (VPN) of the inverter.

d103 ( BRD ON monitor (s)): There is an integrated BRD circuit on 11kW and less for SJ300, and 15kW and less for L300P series. You can find accumulated turning ON time for the integrated BRD transistor.

d104 ( Electronic thermal monitor (%)):You can find the usage ratio of electronic thermal performance as %.

d105 (Trip cause monitor of gate array):There are 8 items of trips which are detected by the internal gate array and these items are transmitted to MCU.

Bit7

bit6

Bit5

bit4

bit3

bit2

bit1

bit0

Gate	array IGBT error	IGBT error	Over	Over voltage	Under voltage	IGBT error	Option
error	W phase	V phase	temperature	(E07)	(E09)	U phase	Ground fault
			(E21)				(E14)
(E23)	(E30)	(E30)				(E30)

Contents of d105 are expressed in HEX.

(Example 1) 20

20 (HEX) = 00100000 (BIN)

bit5 = “1” -> IGBT error (V phase)

(Example 1) 62

62 (HEX) = 01100010 (BIN)

bit1, bit5, bit6 = “1 ” -> IGBT error (U, V, W phase)

d106(MCU No monitor): Display the software management number of MCU incorporated.

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