Hitachi L100 IP Series, Инструкция по эксплуатации

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Chapter 7 – Control circuit terminal functions
7-15
OL: Overload signal
Terminal function
A digital output configured as OL is activated as soon as a user definable overload limit is exceeded. The OL
output remains active as long as the motor current lies above this limit.
Signal active
Current
Li
m
it
(
C 4
1
)
OL signal
O
L
FM
CM2
12 11
27V max.
50mA max.
Configuration
C 21 C 22 C 41
1) If a digital output is to be configured as OL then first the current limit has to be set at which the OL
signal is to be activated.
2) Program one of the digital outputs 11 or 12 as OL output by entering the parameter 03 under C 21 or
C 22 .
OD: PID deviation
Terminal function
A digital output configured as OL is activated when a user definable PID deviation threshold (current value -
set value) is exceeded. The OD output remains activated as long as this deviation is greater than the
predetermined level.
Signal active
Current value
Th
re
sh
ol
d
(
C 4
4
)
OD signal
OD
FM CM2 12 11
27V max.
50mA max.
Configuration
C 21 C 22 C 44
1) Before a programmable digital output is configured as OD, a threshold must be set using C 44 to
determine when the OD signal will get activated.
2) Program one of the digital outputs 11 or 12 as OD output by entering the parameter 04 under C 21 or
C 22 .