Hitachi SJ300 Series, Инструкция по эксплуатации

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Using Intelligent Output Terminals
Oper
ations
a
nd Moni
tor
ing
4–54
Torque Limit
Signal
The Torque Limit output [TRQ] works in conjunction with the torque limit function covered in
the intelligent input section. The torque limit function limits the motor torque according to the
criteria selected by parameter B040. When torque limiting occurs, the [TRQ] output turns ON,
then going OFF automatically when the output torque falls below the specified limits. See
“Torque Limit” on page 4–37 in the intelligent input section.
Run Time /
Power-On Time
Over Signals
SJ300 Series inverters accumulate the total hours in Run Mode (run time) and the total hours of
power-ON time. You can set thresholds for these accumulating timers. Once the threshold is
exceeded, an output terminal will turn ON. One use of this is for preventative maintenance. A
signal light or audible alert could signal the need for servicing, calibration, etc.
Opt.
Code
Symbol Function Name
Output
State
Description
10 TRQ Torque Limit ON when the inverter is limiting torque
OFF when the inverter is not limiting torque
Valid for
outputs:
11, 12, 13, 14, 15,
AL0 – AL2
Required
settings:
B040... if B040=00 then
B041, B042, B043, B044 are
required
Notes:
•
The Torque Limit input [TL] must be ON in
order to enable torque limiting and its related
output, [TRQ].
CM2
13 14
15
11
12
See I/O specs on page 4–9 .
Inverter output
terminal circuit
RY
+
–
Example: (Requires output configuration—
see page
3–53 .)
TRQ
Opt.
Code
Symbol Function Name
Output
State
Description
11 RNT Run Time Over ON when the accumulated time spent in Run
Mode exceeds the limit (B034)
OFF when the accumulated time in Run Mode
is still less than the limit (B034)
12 ONT Power-ON Time
Over ON when the accumulated power-ON time
exceeds the limit (B034)
OFF when the accumulated power-ON time is
less than the limit (B034)