Specifications

YASKAWA Inverter Drive A1000 – Crane Software Application Manual
37
S1-11 Torque Compensation Delay Time (TCDT): Sets the torque compensation ramp time at start.
No. Parameter Name Setting Range Default
S1-09
FWD Torque Compensation Determined by A1-02
S1-10
REV Torque Compensation
0 to 200 % in OLV
-200 to 200 % in CLV
0 %
S1-11
Torque Compensation Delay Time 0 to 200 ms 50 ms
S1-12 FWD Brake Hold Frequency (FHF)
: Sets the frequency in the FWD direction at which the BR relay is deactivated
and the brake is closed during deceleration when a STOP command is given. Normally set between 3 – 4 Hz, although a
typical value can be calculated using the following formula:
[
]
[
]
[]
sDecelTime
HzMaxOutFreqsBDT
FHF
⋅
=
S1-13 REV Brake Hold Frequency (RHF)
: Sets the frequency in the REV direction at which the BR relay is deactivated
and the brake is closed during deceleration when a STOP command is given. Typical value is the same as in FHF.
No. Parameter Name Setting Range Default
S1-12
FWD Brake Hold Frequency 3.0 Hz
S1-13
REV Brake Hold Frequency
0.0 to 20.0 Hz
3.0 Hz
S1-14 Slip Prevention Frequency (HF)
: Frequency at which the drive will hold after the BR relay is deactivated at STOP.
This parameter is normally set to the same value as the Brake Delay Frequency BF.
S1-15 Slip Prevention Time (HT)
: Time during which the drive will hold the frequency set in HF after the Brake Release
Command BR is deactivated (brake closed) at stop. This time should match the delay between the moment the brake
receives a signal to close and when the brake is actually completely closed. Increase this parameter if the load slips
before the brake is completely applied.
No. Parameter Name Setting Range Default
S1-14
Slip Prevention Frequency 0.0 to 20.0 Hz Determined by A1-02
S1-15
Slip Prevention Time 0.00 to 10.00 s Determined by A1-02
S1-16 Sequence Fault SE1 Detection Time
: Sets the delay time before an SE1 fault is triggered. An SE1 fault condition
exists when both the FWD and REV Run Commands are entered at the same time. This condition should be avoided.
S1-17 Sequence Fault SE2 Detection Time
: Sets the delay time before an SE2 fault is triggered. An SE2 fault condition
exists when a RUN Command has been given but the Brake Release Command BR has not been output because the
conditions for brake opening have not been met.
S1-18 Sequence Fault SE3 Detection Time
: Sets the delay time before an SE3 fault is triggered. An SE3 fault condition
exists when the Brake Release Command BR has been output but the Brake Release Check BX feedback input signal
has not been received.
S1-19 Sequence Fault SE4 Detection Time
: Sets the delay time before an SE4 fault is triggered. An SE4 fault condition
exists when the Brake Release Check BX feedback signal has been received but no Brake Release Command BR has
been output.
No. Parameter Name Setting Range Default
S1-16
Sequence Fault SE1 Detection Time 0.30 s
S1-17
Sequence Fault SE2 Detection Time 1.00 s
S1-18
Sequence Fault SE3 Detection Time 0.50 s
S1-19
Sequence Fault SE4 Detection Time
0.00 to 2.00 s
0.50 s
S1-20 Operation In Reverse
: Determines if the drive is motoring or regenerating in the REV direction. If operating in OLV
control mode without a counter weight, be sure to set this parameter to 1 (regeneration in REV).
S1-22 DB Phase Fix
: Determines if the drive saves the phase of DC injection braking at stop in order to start DC injection
using the same phase and therefore avoid brake slip.
No. Parameter Name Setting Range Default
S1-20
Operation in Revere
0: Normal Motoring
1: Regeneration
0
S1-22
DB Phase Fix
0: Disabled
1: Enabled
0
7.1.2 Starting Sequence
In this section we will describe the way the drive behaves when starting. In order to prevent sudden slipping or dropping
of the load, be sure that the Brake Release Torque has been set high enough to hold the load.