SPAZIO FORMA: Service & Maintenance manual - rev. 1.0
Page 6.8
6.3. THE POWER ISOLATING BOARD IS NOT WORKING
Does the CPU correctly output the
trigger and emergency signals ?
Do the trigger and emergency
signals reach the portable
connector ?
Replace cable SF -21A
Replace the CPU board
YES
NO
NO
YES
1
THE POWER ISOLATING
BOARD DOESN'T WORK
2
Do the trigger and emergency
signals reach the input of the
power isolating board ?
3
Replace cable SF -22A
Does relay K2 on the power
isolating board work properly ?
Replace the power
isolating board
4
YES
NO
NO
Does relay K1 on the disconnection
board receiv e the correct v oltage ?
Replace the power
isolating board
5
YES
NO
Replace relay K1
YES