Fuji Electric FRENIC-MEGA, Инструкция по эксплуатации

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F codes
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Ch
ap
. 5
FUNCTION C
O
DES
Upper level alarm (AH) and lower level alarm (AL) also apply to the following alarms.
Alarm Description
How to handle the alarm:
Select alarm output (J11) Parameter setting
Upper limit (absolute) ON when AH < PV Absolute-value alarm J13 (AL) = 0
Lower limit (absolute) ON when PV < AL J12 (AH) = 100%
Upper limit (deviation) ON when SV + AH < PV Deviation alarm J13 (AL) = 100%
Lower limit (deviation) ON when PV < SV - AL J12 (AH) = 100%
Upper/lower limit
(deviation) ON when |SV - PV| > AL J13 (AL) = J12 (AH)
Upper/lower range limit
(deviation)
ON when SV - AL < PV < SV + AL Deviation alarm
A negative logic signal
should be assigned to
PID-ALM
.
Upper/lower range limit
(absolute) ON when AL < PV < AH Absolute-value alarm
Upper/lower range limit
(deviation) ON when SV - AL < PV < SV + AH Deviation alarm
J15 to J17 PID Control (Stop frequency for slow flowrate, Slow flowrate level stop latency and
Starting frequency)
(Refer to J08.)
J18, J19 PID Control (Upper limit of PID process output, Lower limit of PID process output)
The upper and lower limiters can be specified to the PID output, exclusively used for PID control. The settings are ignored
when PID cancel is enabled and the inverter is operated at the reference frequency previously specified.
(
E01 to E07, data = 20)
„ PID Control (Upper limit of PID process output) (J18)
J18 specifies the upper limit of the PID processor output limiter in %. If you specify "999," the setting of the frequency
limiter (High) (F15) will serve as the upper limit.
„ PID Control (Lower limit of PID process output) (J19)
J19 specifies the lower limit of the PID processor output limiter in %. If you specify "999," the setting of the frequency
limiter (Low) (F16) will serve as the lower limit.
J21 Dew Condensation Prevention (Duty)
When the inverter is stopped, dew condensation on the motor can be prevented, by feeding DC power to the motor at regular
intervals to keep the temperature of the motor above a certain level.
„ Enabling Dew Condensation Prevention
To utilize this feature, you need to assign the terminal command
DWP
("Protect motor from dew condensation") to one of
the general-purpose digital input terminals. ( E01 to E07, data = 39)
„ Dew Condensation Prevention (Duty) (J21)
The magnitude of the DC power applied to the motor is the same as the setting of F21 (DC braking 1, Braking level) and its
duration of each interval is the same as the setting of F22 (DC braking 1, Braking time). Interval T is determined so that the
ratio of the duration of the DC power to T is the value (Duty) set for J21.
(%) 100 ×
T
F22
(J21) prevention on condensati for Duty
=
Condensation Prevention Cycle