3 Startup Procedure and Test Run
174
YASKAWA ELECTRIC
SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
Closed Loop Vector Control
S1-01 - Brake Release Frequency(FWD)
S1-02 - Brake Release Frequency(REV)
S1-03 - Brake Delay Frequency
S1-04 - Brake Delay Time
S1-05 - Brake Release Current (FWD)
S1-06 - Brake Release Current (REV)
S1-07 - Brake Release Torque (FWD)
S1-08 - Brake Release Torque (REV)
S1-09 - Torque Compensation (FWD)
S1-10 - Torque Compensation (REV)
S1-11 - Torque Compensation Delay Time
S1-12 - Brake Hold Frequency (FWD)
S1-13 - Brake Hold Frequency (REV)
b2-04 - DC Inject Braking Time at Stop
Note:
•
Note the following precautions regarding parameter setting.
–
Set
S1-15 = 0 [Slip Prevention Time = 0 s]
.
–
Set
b2-04 = Brake Operation Delay Time
as the stop timer.
–
The default setting of
S1-03
and
S1-04
is 0 for Closed Loop Vector Control.
•
Note the following precautions regarding the use of torque compensation.
–
Torque compensation is used to perform the following operations with hoisting cranes that lack counterweights. Set
S1-01
and
S1-02
to 0 to use torque compensation.
–
Release brakes when the output frequency is low (shockless operation).
–
Release brakes as quickly as possible (shorten operation cycles).
–
Reception of torque compensation analog input signals from terminal A3 can be enabled using either of the following methods.
–
Set the amount of torque compensation with
S1-09
and
S1-10
.
–
Set
H3-06 = 14 [Terminal A3 Function Selection = Torque Compensation]
.
–
The actual amount of torque compensation is determined at the time of Forward run command and Reverse run command input.
–
S1-11 is used to set the time taken for torque compensation to reach from 0% to 100% . Torque compensation reaches 100% in half
the amount of time set to
S1-11
when
S1-09
or
S1-10 is set to 50%
.