46
Multi-Function Output (Overload Detection Signal) Description
Setting
Name
Message
Description
22
Overweight Detection
(N.O.contact)
Overload detection
N.O.
If conditions for either Overweight Detection 1 or 2 arise, then the output relay will close.
It will remain closed for the duration that "OL5" appears on the digital operator screen.
23
Overweight Detectio n
(N.C.contact)
Overload Detection
N.C.
If conditions for either Overweight Detection 1 or 2 arise, then the output relay will open.
It will remain open for the duration that "OL5" appears on the digital operator screen.
Note: Overweight Detection operates only when the brake has been released.
6.6 Overtorque Detection
Operations based on the magnitude of the drive's torque command (or the output current) can be selected via parameter
settings (protection for the load manipulated by the crane drive). Two levels of protection can be set to the drive, one
for the detection operation and the other for the detection level.
Overtorque Detection is not enabled when b1-02 is set to zero (allowing the Run Command from the digital operator).
No.
Name
Description
S6-01 Overtorque Detection
Operation Selection 1
Enables or disables Overtorque Detection, the detection conditions, and the operations executed following
detection.
0: No overtorque detection
1: Detection only during Speed Agree, acceleration prohibited (continue running). Minor error.
2: Detection while running, acceleration prohibited (continue running). Minor error.
3: Detection only during Speed Agree. Interrupt output current. Serious error.
4: Detection during run. Interrupt output current. Serious error.
5: Detection only during Speed Agree (continue running), but maintain Multi-Function Digital output until stopped. Minor error.
6: Detection druing run, but maintain Multi-Function Digital output until stopped. Minor error.
continue running
minor error (reset by stop)
Setting Value is 1 or 2:
“ OL3” will flash when overtorque is detected.
Setting Value is 3 or 4:
“ OL3” will flash until the RESET button is depressed.
Setting Value is 5 or 6:
“ OL3” will flash on the operator screen until the motor comes to a complete stop.
S6-02 Overtorque Detection
Level 1
Sets the Overtorque Detection Level:
・
In V/f Control Mode, the motor rated current is 100%
・
In Vector Control Mode, the motor rated torque is 100%.
S6-03 Overtorque Detection
Time 1
If the time that the motor current (or motor torque) exceeds the value set in S6 -02 is longer than the time set to this
parameter, then an Overtorque 1 condition will be detected.
S6-04 Overtorque Detection
Operation Selection 2
Same as S6 -01, although “ OL4” will appear on the operator display.
S6-05 Overtorque Detect Level 2 Same as S6 -02
S6-06 Overtorque Detection
Time 2
If the time the motor current or motor torque set by S6 -05 is longer than the time set in this parameter, then
overtorque will be detected.
If overtorque detection has been set to Multi-Function Output (setting = 0B, 17~19), then the relay is triggered.
See the table below for conditions when the relay is open or closed.
Description of Multi-Function Output (Overtorque Detection Signal)
Setting
Name
Message
Description
0 B
Overtorque Detection 1
(N.O.Contact)
Overtorque Detection
1 N.O.
If overtorque is detected as a result of Overload Detection 1, then the output relay will
close. It will remain closed for the duration that "OL3" appears on the digital operator
screen.
1 7
Overtorque Detection 1
(N.C.Contact)
Overtorque Detection
1 N.C.
If overtorque is detected as a result of Overload Detection 1, then the output relay will
open. It will remain open for the duration that "OL3" appears on the digital operator
screen.
1 8
Overtorque Detection 2
(N.O.Contact)
Overtorque Detection
2 N.O.
If overtorque as a result of Overload Detection 1, then the output relay will close. It will
remain closed for the duration that "OL4" appears on the digital operator screen.
1 9
Overtorque Detection 2
(N.C.Contact)
Overtorque Detection
2 N.C.
If overtorque as a result of Overload Detection 1, then the output relay will open. It will
remain open for the duration that "OL4" appears on the digital operat or screen.
Note: Changes with the standard F7Z drive:
1.
S5-01, -04: Overtorque Detection Operation Selection: settings 5 and 6 were added.
2.
S6-02, -05: Level settings were changed to from the drive rated current to the motor rated current (in V/f Control
Mode only).
Summary of Contents for CIMR-F7Z
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