Ol: Overload Signal; Od: Pid Deviation - Hitachi L100-004 HFE Manual

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.
FM 12 11
CM2
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.
FM 12 11
CM2
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.
Current
Signal active
OL signal
Current value
Signal active
OD signal
7-15
Chapter 7 – Control circuit terminal functions