3-53
Cold Start
Low Speed
(<60 Hz)
Hot Start
High Speed
(>60 Hz)
100%
150% 200%
Motor Load Current (%)
(Cn-09 = 100%)
5.5
3.5
O
ver
load P
ro
tec
t T
im
e (
m
in
)
Fig. 36.
Motor overload protection curve (Cn-09 setting = 100%)
(27)
Frequency Characteristics Command Selection at External Analog Input Terminal
(Sn-24)
Sn-24 = 0 : Frequency command is input at VIN terminal (0~10V)
= 1 : Frequency command is input at AIN terminal (4~20mA)
= 2 : Frequency command is the addition (VIN + AIN) at VIN (0~10V) and
AIN (4~20mA) terminal.
= 3 : Frequency command is the combination (VIN - AIN) at VIN (0~10V)
and AIN (4~20mA) terminal. If the value (VIN - AIN) is negative, the
reference command will take ‘0’ as a result.
•
On inverter with 4P101C01301control board, if Sn-68=
–
1
––
and Sn-05=1 VIN
allowing input ±10V, set Sn-24 to select main frequency:
Sn-24 = 0 : frequency command is controlled by VIN(-10~+10V) input.
(Corresponding main frequency: -10V ~ +10V
→
Reverse frequency
100% ~ forward frequency100%)
= 1 : frequency command in controlled by AIN(4~20mA) input.
(the status of forward/ reverse is set by user)
= 2 : frequency command is controlled by VIN and AIN, the sum of both
(VIN + AIN).
= 3 : frequency command is controlled by VIN and AIN, the balance of both
(VIN - AIN).
(When (VIN + AIN) < 0 or (VIN - AIN) < 0, main frequency switched
to reverse status.
Sn-24 = 0
、
2
、
3, forward or reverse is control by main frequency command polar.
(28)
Multi-Function Input Terminal
g
Function Selection (Sn-25)
(29)
Multi-Function Input Terminal
h
Function Selection (Sn-26)
(30)
Multi-Function Input Terminal
i
Function Selection (Sn-27)
(31)
Multi-Function Input Terminal
j
Function Selection (Sn-28)
•
The settings and functions for the multi-function input are listed in Table 14.
