YASKAWA iQpump Micro CIMR-PW Series User Manual page 274

6.4 Alarm Detection
LED Display LCD Display
Insufficient suction pressure is present.
LED Display LCD Display
Low Water in
Cause
The water level in the tank is too low.
Shown when P4-24 = 2 and when the digital
input has been active (closed for P4-21 = 0,
or open for P4-21 = 1) for the time set in
P4-22.
LED Display LCD Display
lt-1
Cause
The cooling fan has reached 90% of its
expected performance life.
LED Display LCD Display
lt-2
Cause
The main circuit and control circuit capacitors
have reached 90% of their expected
performance lives.
LED Display LCD Display
lt-3
Cause
The DC bus soft charge relay has reached
90% of expected performance life.
LED Display LCD Display
lt-4
Cause
IGBTs have reached 50% of their expected
performance life.
LED Display LCD Display
NETSCAN
net5c
Waiting for
Master
Cause
No message was received from the master
within the time set in P9-28.
274
Shown when P4-24 = 1 and when the digital input has been active (closed for P4-21 = 0, or open for P4-21
= 1) for the time set in P4-22.
The drive, if running, coasts-to-stop and does not run until the digital input has been inactive for the time
set in P4-22.
Low Water in Tank
Tank
• Check pressure switch contact for correct operation.
• Check control wiring to drive terminal strip from pressure switch contact.
• Check to make sure that suction pressure is present by means of a separate measuring device.
• Raise the water level.
Cooling Fan Maintenance Time
The cooling fan has reached its expected maintenance period and may need to be replaced.
LT-1
Note:
An alarm output (H2-oo = 10) will only be triggered if both
(H2-oo = 2F and H2-oo = 10) are set.
Replace the cooling fan and set o4-03 to 0 to reset the Maintenance Monitor.
Capacitor Maintenance Time
The main circuit and control circuit capacitors are nearing the end of their expected performance life.
LT-2
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Replace the drive.
Soft Charge Bypass Relay Maintenance Time
The DC bus soft charge relay is nearing the end of its expected performance life.
LT-3
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Replace the drive.
IGBT Maintenance Time (50%)
IGBTs have reached 50% of their expected performance life.
LT-4
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Check the load, carrier frequency, and output frequency.
NETSCAN
Drive is waiting for a message from the master.
• Increase the P9-26 setting to account for network latency.
• Verify that there is a drive on the network with parameter P1-01 set to 3 and P9-27 to 0.
• Check network connections and verify H5-01 and P9-25 settings for all drives on the network.
Minor Fault Name
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual