Settings Required After Replacement Of Cooling Fan Or Circuit Board - YASKAWA Varispeed G7 Series Instruction Manual

Related Alarm Displays
When setting a multi-function contact output H2- to 2F, the alarm is displayed on the Digital Operator as
shown below.
Display
*
LT-C
(blinking)
C Maintenance
*
LT-F
(blinking)
Fan Maintenance
* Applicable for G7-Series Inverters with software versions PRG 1039 and later.


Settings Required after Replacement of Cooling Fan or Circuit Board

Set o2-10 to 0 after replacing the cooling fan.
•
Set o2-18 to 0 after replacing the circuit board.
•
Refer to Chapter 8 Maintenance and Inspection for the replacement procedure.
Related Constants
Con-
stant
Number
Fan opera-
tion time set-
ting
o2-10
Fan ON Time
Set
Capacitor
maintenance
setting
o2-18
*
C Mainte-
nanceSet
* Applicable for G7-Series Inverters with software versions PRG 1039 and later.
-186
6
Meaning
Electrolytic Capacitor Main-
tenance Timer
Monitor U1-61 has reached
100%.
Cooling Fan Maintenance
Timer
Monitor U1-63 has reached
100%.
Name
Description
Display
Set the initial value of the fan
operation time using time
units.
The operation time accumu-
lates from the set value.
Allows the user to set the
maintenance time for the
electrolytic capacitors (U1-
61). The user can reset the
accumulated operation time
back to zero, or to some other
desired value.
Probable causes
The electrolytic capacitor on the cir-
cuit board has reached its estimated
maintenance time period.
The cooling fan has reached its esti-
mated maintenance time period.
Change
Setting Factory during
Range Setting Opera-
tion
0 to
0 hr No
65535
0 to
0% No
150
Corrective Actions
Replace the circuit board and set user
constant o2-18 (Capacitor Mainte-
nance Setting) to 0%.
Replace the cooling fan and set con-
stant o2-10 (Fan Operation Time Set-
ting) to 0 hex.
Control Methods
MEMO-
Open Open
BUS
V/f Loop Flux Loop
Regis-
V/f with Vec- Vec- Vec-
PG tor tor tor
1 2
A A A A A 50EH
A A A A A 51DH
ter