Hitachi SJ Series, Руководство пользователя

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12-13-2
Chapter 12
Inverter Function
• I want to switch the overload limit function with
terminal input.
• I want to switch the overload limit level according to
the load since the load weight differs from situation
to situation.
Parameters
Input terminal function
• Using [bA122] to [bA124] of overload limit 1 and
[bA126] to [bA128] of overload limit 2, you can set
two types of overload limit functions.
• You can switch between overload limit 1 and
overload limit 2 with the input terminal function
038[OLR].
Turning on the [OLR] enables the overload limit 2.
Item Parameter Data Description
Overload limit 1 selection
Overload limit 2 selection [bA122]
[bA126]
00 Disabled
01
Enabled during acceleration and at
constant speed
02 Enabled at constant speed
03
Enabled during acceleration and at
constant speed (Speed increases
during regeneration)
Overload Limit 1 Level
Overload Limit 2 Level [bA123]
[bA127] Inverter
rated current
× (0.20~2.00)
Overload limit function is activated
when the output current exceeds
this set value.
Overload limit 1 operation
time
Overload limit 2 operation
time
[bA124]
[bA128]
0.10~3600.00(s)
Acceleration/Deceleration time when
exceeded
the overload limit level.
Item Parameter Data Description
Input terminal function selection [CA-01]~[CA-11] 038
[OLR] Overload limit switching
OFF: Overload limit 1 enabled.
ON: Overload limit 2 enabled.
Q
A
Inverter
Output Frequency
[bA123] Overload Limit 1 Level
Output Current
Command
Frequency
[bA124]
Max. Frequency
IM:[Hb105]
SM(PMM):[Hd105]
OLR
ON
[bA127]
[bA126] Overload Limit 2 Level