Mainboard (PWMMBXXX) working indicating lamp instruction
!! ATTENTION !!
The instruction of indicating lamp, under, only for expert electrical engineer.
If you aren't, the step infra maybe get high voltage electric shock or damaged
 the machine again.
 

Indicating Lamp

Function Description
1 MPWR Main power switch on indicating lamp
2 OUT Out switch on  indicating lamp
3 RNG Range switch to "HIGH" indicating lamp
4 DCER DC bus  "OK" indicating lamp
5 OCP Over current protect  indicating lamp
6 OLP Over load protect  indicating lamp
7 OVP Over voltage protect indicating lamp
8

OTP

Cooling fin over  temperature indicating lamp

9 FUSE DC bus fuse blow indicating lamp
10 SAT Power module Saturation action indicating lamp
11 IVP external input signal over range indicating lamp

Please write a detailed description of the indicating lamp, mail or fax to us. So that we can help you to slove the problem quickly and accurately.

  1 2 3 4 5 6 7 8 9 10 11

Indicating lamp

MPWR

OUT

RNG

DCER

OCP

OLP

OVP

OTP

FUSE

SAT

IVP

Normal

G

G/N

G/N

G

N

N

N

N

N

N

N

Voltage error

G

G/N

G/N

N

N

N

N

N

N

N

N

Over current

G

G/N

G/N

G

G

N

N

N

N

N

N

Overload

G

G/N

G/N

G

N

G

N

N

N

N

N

Over voltage

G

G/N

G/N

G

N

N

G

N

N

N

N

Overheat

G

G/N

G/N

G

N

N

N

G

N

N

N

Fuse blow

G

G/N

G/N

G

N

N

N

N

G

N

N

Power module active

G

G/N

G/N

G

N

N

N

N

N

G

N

external input signal over range

G

G/N

G/N

G

N

N

N

N

N

N

G

Note:  
         1."G" denote indicating lamp light ; "N" denote indicating lamp didn't light.
         2.G/N denote indicating lamp light or extinction  switch on / off
         3.About failure analysis and trouble clearing, please references manual.
         4.Voltage error denote Line source over than 15% or low than 15%. 


If a problem is found in working indicating lamp instruction and you can't solve it yourself. Pack the unit
carefully so that it will not damaged during transport, and write a detailed description of the problem.
IDRC can't bear any responsibility for damage that occurs during shipment.

 

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