Emerson EV1000-2S0004G User Manual page 82

艾默生变频器、艾默生CT高级授权代理商--广州盟雄 020-85543394 qq:2294731312
78 Chapter 5 Parameters
Output current
alarm delay
Alarm
Fig. 5-73 Overload Detection and Alarm
Note：
1. Overload detection threshold should be lower than
the overload protection threshold;
2. During the overload alarm delay period, if the
drive's current becomes lower than overload detection
threshold, no alarm will be triggered.
FL.07 Auto current limiting
threshold
FL.08 Freq.decrease rate
rate during current limiting
FL.09 Action mode of auto
current limiting
Auto current limiting function is used to limit the
load current under the preset current in real time
to avoid trip due to over-current. This function is
especially useful for the applications of larger load
inertia or sharp change of load.
FL.07 defines the threshold for current limiting. Its
setting is a percentage of drive's rated current Ie.
Type Setting Range
G 20.0%~180.0%
P 20.0%~130.0%
FL.08 defines the decreasing rate of output
frequency when the drive is in auto current
limiting status.
If FL.08 is set too small, overload fault may occur.
If FL.08 is set too big, the drive may be in energy
generation status for long time that may result in
overvoltage protection.
The action mode of auto current limiting function
is decided by FL.09.
Overload threshold
alarm delay
Effective period
Range: Depending on model
Range: 0.00 ～ 99.99Hz/s
【 10.00Hz/s 】
Range: 0 ～ 4 【 2 】
EV1000 Series General Purpose Variable Speed Drive User Manual
FL.09＝0: disabled;
FL.09＝1: auto current limiting is effective during
acceleration or deceleration but ineffective at
constant speed, no silencing function;
Time
FL.09＝2: effective all the time, no silencing
function;
Time
FL.09＝3: auto current limiting is effective during
acceleration or deceleration but ineffective at
constant speed, with silencing function;
FL.09＝4: effective all the time, with silencing
function.
Because the output frequency might change
during current limiting, the function should be
used for applications that require constant speed
and stable frequency output.
FL.10 Auto reset times
FL.11 Auto reset interval Range: 2.0 ～ 20.0s 【 5.0s 】
Auto Reset function can reset a fault according to
the preset FL.10 and FL.11. If FL.10 is set to 0,
auto reset is disabled. Protective action will be
taken if a fault occurs.
Note：
Overcurrent protection and external fault (E015)
cannot be reset automatically.
During the reset interval, the drive's stops operation
and restarts on the fly when the reset is finished.
Default
Be careful when using auto-reset function, otherwise
human injure or material loss may occur.
150.0%
FL.12 Protective action
110.0%
mode 1
FL.13 Protective action
mode 2
The fault alarm and protective action can be
prohibited by setting FL.12 and FL.13, so that the
drive can continue working.
FL.12 defines the protective action in case of
communication and E
Range: 0 ～ 10 【 0 】
Range: 000 ～ 101 【 000 】
Range: 0000 ～ 1211 【 0000 】
2
PROM error.