Alto-Shaam COMBITHERM CTC Series Operation, Maintenance, Troubleshooting, Wiring Diagrams page 61

Touch Motor Control Error Codes
Type of Error
Undervoltage
LED flashing sequence, with 1 flash per period.
Overvoltage
LED flashing sequence, with 2 flashes per period.
Excess
LED flashing sequence, with 3 flashes per period.
Temperature
Current Peak
LED flashing sequence, with 4 flashes per period.
Overcurrent
LED flashing sequence, with 5 flashes per period.
Short-circuit
LED flashing sequence, with 6 flashes per period.
Power on LED flashing sequence, with 7 flashes per period.
Watchdog
LED flashing sequence, with 8 flashes per period.
M N - 3 5 9 4 9 • R e v 0 4
Indication
• 0 6 / 1 6 • C o m b i t h e r m ® C T P R O f o r m a n c e ™ S e r i e s
Release of Error
Voltage of intermediate circuit is less than 250V
Voltage of intermediate circuit exceeds 445V
Temperature sensor in the power unit is more than 199°F
(93°C)
Blocked motor, detected by current peak monitoring from
900 rpm rotating field
Intermediate circuit current exceeds 4.0 A
Release of interrupt at intermediate circuit current larger
than 53 A
Eff ective mains voltage does not correspond to jumper set-
ting 115V/230V
Watchdog of the microcontroller released, program crash
• T e c h n i c a l S e r v i c e M a n u a l
Error Codes
• 6 1