BC Time Recorder Simplex 100 Anleitung zur Fehlerbehebung PDF herunterladen (Seite 30)

4-7

Table 4-1 shows several indications of problems with potential causes associated

with each.

Table 4-1. Troubleshooting Chart

Indication of Problem Areas to Check

If the LCD display and LED indicators

all appear to be without power

Check the primary AC power and battery voltage

If the primary AC power is within the

operational range of approximately

100 - 132VAC

Check to see that the tap voltages are available

If the tap voltages appear to be down Check for proper installation of the power enable jumpers on

the Power I/O Interface assembly.

• P11, P12, P10 & P14 on Part No. 565-256

• P3, P4 & P6 on version Part No. 565-220

Then, if necessary, check for proper Standard Slave / Power

I/O initialization.

• Trouble LED turns on during initialization

• Green Power I/O Interface LED turns on if 28V power

and AC line voltage is available

• Standard Slave tests EPROM & RAM and will hang if an

error occurs

• Standard Slave checks AC power and battery voltage

level and will hang on low levels

• A, B & C-tap voltage levels are checked

Check for 36V Mapnet voltage. If voltage is present, Standard

Slave should be communicating with the Master Controller.

If a ground fault is being reported Check the following:

• I/O circuit wiring for ground faults

• Discolored MOV devices

• Does the fault disappear when drop panel is opened (

see

pg. 3-2, “Ground Faults”

)

• If none of above, try swapping power supply

If an I/O circuit short or open trouble

condition is reported

Check the following:

• Standard Slave open circuit or burned R35, R36, R70, or

R77 10 ohm resistors

• Check for field wiring shorts between signal circuits

• Check for A/V Appliance power jumpers not removed to

isolate horn & strobe circuits

• Check for multiple ground faults between I/O circuits and

earth

• Are the proper I/O plugs installed and seated properly

Continued on next page

Troubleshooting Procedures,

Continued

Troubleshooting Chart

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