The Inverter Display Does Not Show Any Error - Technogym Forma Service Maintenance Manual

FORMA: Service & Maintenance manual - rev. 3.0
6.3.9. T
HE INVERTER DISPLAY DOES NOT SHOW ANY ERROR
This is an anomalous error condition in which the machine display reports an error but the inverter
has not generated an error.
Replace the CPU board
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below:
No error displayed
Is there an alarm signal
asserted at the inverter
output?
NO
Is there an alarm signal
asserted at the input to the
driver board?
Is there an alarm signal
asserted at the output of the
driver board?
Is there an alarm on trailing
connector CN28?
NO
Is there an alarm asserted
at the input to the display?
1
YES
2
YES
NO
3
YES
NO
4
YES
NO
5
YES
Replace the inverter
Check and/or replace cable
FR-7
Replace the driver
interface board
Check and/or replace cable
FR-12
Check and/or replace cable
FR-11
Page 6.21