YASKAWA Z1000U Technical Manual page 215

HOA Keypad Display
oFC02
Cause
An option card of the same type is already installed
in option port CN5-A or CN5-B.
An input option card is already installed in option
port CN5-A or CN5-B.
HOA Keypad Display
oFC03 to oFC11
oFC12 to oFC17
Cause
Option card or hardware is damaged
HOA Keypad Display
oFC50 to oFC55
Cause
Option card or hardware is damaged
HOA Keypad Display
oH
Cause
Surrounding temperature is too high
Load is too heavy
External cooling fan is stopped
HOA Keypad Display
oH1
Cause
Surrounding temperature is too high
Load is too heavy
HOA Keypad Display
oH3
Cause
YASKAWA SIEP YAIZ1D 01C Z1000U HVAC MATRIX Drive Bypass Technical Manual
Option Card Fault at Option Port CN5-C
Same type of option card is currently connected
Only one of each option card type can only be installed simultaneously. Make sure only one type of
option card is connected.
Install a communication option, a digital input option, or an analog input option. More than one of
the same type of card cannot be installed simultaneously.
Option Card Error Occurred at Option Port CN5-C
• Cycle power to the drive.
• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a
Yaskawa representative for instructions on replacing the control board.
Option Card Error Occurred at Option Port CN5-C
Refer to the option manual for details.
Heatsink Overheat
The heatsink temperature exceeded the overheat pre-alarm level set to L8-02. The default value for
L8-02 is determined by drive capacity (o2-04).
• Check the temperature surrounding the drive. Verify temperature is within drive specifications.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool the surrounding area.
• Remove anything near the drive that might be producing excessive heat.
• Measure the output current.
• Decrease the load.
• Lower the carrier frequency (C6-02).
• Replace the cooling fan. Refer to Drive Cooling Fan Replacement: Models 2
o 0011 to 4 o 0124 on page
and 4
• After replacing the cooling fan, set parameter o4-03 to 0 to reset the cooling fan maintenance.
Overheat 1 (Heatsink Overheat)
The heatsink temperature exceeded the drive overheat level. Overheat level is determined by drive
capacity (o2-04).
• Check the temperature surrounding the drive.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool the surrounding area.
• Remove anything near the drive that might be producing excessive heat.
• Measure the output current.
• Lower the carrier frequency (C6-02).
• Reduce the load.
Motor Overheat Alarm (PTC Input)
• The motor overheat signal to analog input terminals A1, A2, or A3 exceeded the alarm detection
level.
• Detection requires setting multi-function analog inputs H3-02, H3-06, or H3-10 to E.
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
257.
Fault Name
Possible Solution
Fault Name
Possible Solution
6.4 Fault Detection
o 0028 to 2 o 0130
6
215