Specifications

YASKAWA Inverter Drive A1000 – Crane Software Application Manual
52
S6-04 Overtorque Detection Operation Selection 2
: Determines overtorque detection conditions and the actions that are
carried out when an overload condition is detected.
No. Parameter Name Setting Range Default
S6-04
Overtorque Detection Operation Selection 2
0: Overtorque Detection Disabled
1: At Speed Agree. Alarm only during
overtorque detection, drive continues to run
2: During Run. Alarm only during overtorque
detection, drive continues to run.
3: At Speed Agree. Fault, coast to stop, fault
must be reset to continue operation.
4: During Run. Fault, coast to stop, fault must
be reset to continue operation.
5: At Speed Agree. Alarm only, reset when drive
stops, drive continues to run.
6: During Run. Alarm only, reset when drive
stops, drive continues to run.
0
S6-05 Overtorque Detection Level 1
: Sets the threshold above which an overtorque condition is detected. In vector
control modes, set as a percentage of motor rated torque. In V/f control modes, set as a percentage of motor rated
current.
S6-06 Overtorque Detection Time 1
: Sets the time that the torque reference (vector control) or output current (V/f control)
must surpass the level set to S6-05 before an Overload Condition is triggered.
No. Parameter Name Setting Range Default
S5-05
Overtorque Detection Level 2 0 to 300 % 150 %
S5-06
Overtorque Detection Time 2 0.0 to 10.0 s 0.1 s
It is possible to trigger one of the drive’s multi-function digital outputs when an overtorque condition occurs using the
following settings:
H3- Setting
Name Message Description
0B
Overtorque Detection 1 (N.O.) Overtorque Detection 1 N.O.
If conditions for Overtorque Detection 1 arise, then the output relay will close. It will remain closed
for the duration that "oL3" appears on the digital operator screen.
17
Overtorque Detection 1 (N.C.) Overtorque Detection 1 N.C.
If conditions for Overtorque Detection 1 arise, then the output relay will open. It will remain open
for the duration that "oL3" appears on the digital operator screen.
18
Overtorque Detection 2 (N.O.) Overtorque Detection 2 N.O.
If conditions for Overtorque Detection 2 arise, then the output relay will close. It will remain closed
for the duration that "oL4" appears on the digital operator screen.
19
Overtorque Detection 2 (N.C.) Overtorque Detection 2 N.C.
If conditions for Overtorque Detection 2 arise, then the output relay will open. It will remain open
for the duration that "oL4" appears on the digital operator screen.
7.9 Overtravel Limit Function
In the A1000 Crane Drive an Overtravel Limit Function has been implemented. On horizontal applications, it can prevent
the cart/container from traveling past a predetermined location, and in hoisting applications it can prevent the load from
being hoisted too high or too low. The function is controlled by multi-function digital inputs that can be programmed in the
FWD or REV directions and as Normally Open (N.O.) or Normally Closed (N.C.) contacts. In the following table the
Overtravel Limit settings for the H1- digital input parameters are shown.
H1- Setting
Name Message Description
31
FWD Overtravel Limit (N.O.) FWD Limit N.O.
If the input relay is closed during FWD Run, then the Brake Release Command BR will open
(causing the brake to clamp shut) and the motor will coast to stop. If the relay is closed while
running in REV direction there is no change in drive operations. If the relay is closed and a FWD
Run Command is entered, the drive will not run.
32
FWD Overtravel Limit (N.C.) FWD Limit N.C.
If the input relay is opened during FWD Run, then the Brake Release Command BR will open
(causing the brake to clamp shut) and the motor will coast to stop. If the relay is opened while
running in REV direction there is no change in drive operations. If the relay is opened and a FWD
Run Command is entered, the drive will not run.
33
REV Overtravel Limit (N.O.) REV Limit N.O.
If the input relay is closed during REV Run, then the Brake Release Command BR will open
(causing the brake to clamp shut) and the motor will coast to stop. If the relay is closed while
running in FWD direction there is no change in drive operations. If the relay is closed and a REV
Run Command is entered, the drive will not run.
34
REV Overtravel Limit (N.C.) REV Limit N.C.
If the input relay is opened during REV Run, then the Brake Release Command BR will open
(causing the brake to clamp shut) and the motor will coast to stop. If the relay is opened while
running in FWD direction there is no change in drive operations. If the relay is opened and a REV
Run Command is entered, the drive will not run.
7.10 Motor Switch Function
The A1000 Crane Drive can operate two motors if an external sequence is used to switch between them. There are some
limitations to the drive’s functions when driving the second motor, which are detailed in this section. The second motor
can also only operate in V/f and Open Loop Vector (OLV) control modes, as there is no support for encoder feedback