Instruction manual

8. FUNCTIONS
IMS01J02-E1
182
8.2.8 Alarm hold function
In the alarm hold function, the alarm function is kept invalid even if the motor speed measured value
is in the alarm range when the power is on or the operation mode is switched to RUN from STOP. The
alarm function is held until it passes with H-SIO-A alarm hold cancel time.
H-SIO-A alarm hold cancel time:
Set the time which cancels hold action of alarm.
Setting range: 1 to 255 seconds
Example: The difference between alarms with “hold action” and without “hold action” are described
by referring to the low limit deviation alarm as an example.
 With alarm hold action
A
larm status
Time
Deviation
H-SIO-A alarm hold cancel time
Motor speed measured value
Motor speed measured value
A
larm set
value
Motor speed
set value
OFF ON OFF ON
 Without alarm hold action
A
larm status
Time
Deviation
Motor speed measured value
Motor speed measured value
A
larm set
value
Motor speed
set value
ON OFF ON