Smartrise F220

232
F56
Rdn GSW (R)
Causes
This fault is related to safety critical inputs that come in on two input terminals. A fault occurs
when one input is on and the other is off.
Mismatch on CT input pair
Remedies
Check for wiring mistakes on the inputs terminals.
Check for plug-in terminal blocks on SRU board that might be defective.
Verify input LEDs go on and off together. If LEDs do go on and off together, check SRU board
for metal shavings or anything that might be grounding or shorting the components on the
board.
Replace SRU board.
F71
Speed Dev Err
Speed deviation error
Causes
The detected car speed is different from the expected value.
Remedies
Check for proper connection of DP1 and DP2 signals. Verify the DP1 and DP2 inputs on the CT
SRU toggle rapidly back & forth as the car moves.
IP8300:
Verify the CAT5 connection cable between the IP8300 breakout board and the selector head
has not come loose or disconnected. Reseat cable. Make sure the CAT5 cable is a standard
cable and not a modified or crossover cable.
Encoder:
Verify that the encoder has not become loose or disconnected. Check the encoder speed
feedback in the drive to determine if it’s reading accurately.
F75
Overspeed FPM
Actual Overspeed of Car Detected
Causes
True car speed exceeded 110% of Contract Speed.
True car speed exceeded 150 fpm while on Inspection.
Remedies
Be sure Contract Speed parameter is set correctly to maximum speed at which the car will run.
For hydraulic cars, high speed inspection may cause car to over speed.
For traction cars, check contract motor speed on drive. Reduce the RPM value if necessary.
F77
CPU Stop Swch
CPU Stop Switch is Active
Causes
A or B: DIP switch 1 on Machine Room SRU board is in the ON position.
C or D: DIP switch 1 on Cartop SRU board is in the ON position.
Remedies
Turn switch to OFF position to enable car to run.
Turn switch to OFF position to enable car to run.