CMC 30 HP30, Installation And Operation Instruction Manual

Page: 103 / 218

Chapter 6 - Parameter description [FU1]
6-19
Motor Current].
[Overload Warning]
FU1-56: Overload Trip Selection
FU1-57: Overload Trip Level
FU1-58: Overload Trip Delay Time
Inverter cuts off its output and displays fault message
when the output current persists over the FU1-57
[Overload Trip Level] for the time of FU1-58 [Overload Trip
Time]. This function protects the inverter and motor from
abnormal load conditions.
☞ Note: The set value is the percentage of FU2-33 [Rated
Motor Current].
[Overload Trip Operation]
FU1-59: Stall Prevention Mode Selection (Bit set)
FU1-60: Stall Prevention Level
This bit set parameter follows the conventions used in I/O-
15 and I/O-16 to show the ON (bit set) status.
This function is used to prevent the motor from stalling by
reducing the inverter output frequency until the motor
current decreases below the stall prevention level. This
function can be selected for each mode of acceleration,
steady speed, and deceleration via bit combination.
t1: FU1-55 [Overload Warning Time]
Output Current
Time
Time
FU1-54
[OL Level]
FU1-54
[OL Level]
AXA-AXC
ON
t1 t1
Related Functions: FU2-33 [Rated Motor Current]
I/O-44 [Multi-function Auxiliary Contact
Output]
FU1
►
OLT select
56 --- Yes ---
1 56
Factory Default:
Yes
1
FU1
►
OLT level
57 180 %
180 57
Factory Default:
180 %
180
FU1
►
OLT time
58 60.0 sec
60.0 58
Factory Default:
60.0 sec
60.0
Output Current
Time
Time
FU1-57
[OLT Level]
FU1-57
[OLT Level]
Output Frequency
FU1- 58 [OLT Time]
Overload Trip
Related Functions: FU2-33 [Rated Motor Current]
FU1
►
Stall prev.
59 000
000 59
Factory Default:
000
000
FU1
►
Stall level
60 180 %
180 60
Factory Default:
180 %
180