Using Inverters For Elevating Machines - YASKAWA VS-606V7 Series Instruction Manual

Using Inverters for Elevating Machines

When using the VS-606V7 for elevating machines such as elevators and
cranes, make sure that the brake holds and observe the following
precautions for safe operation.
Brake ON/OFF Sequence
• For the holding brake's ON/OFF sequence, use the following inverter
output signals according to the set control mode.
Do not use "Running (Set value: 1)" for the holding brake's ON/OFF
NOTE
interlock signal.
Control Mode
(Note 1)
V/f Control
(n002=0)
Notes: 1. For Vector control (n002=1), use the same brake ON/OFF sequence with the
same signals as for V/F control.
2. Shows the setting when a multi-function photocoupler output terminal (P1-PC) is
used.
3. Usually, make the following settings for the frequency detection (n095):
For V/f control: Motor rated slip frequency + 1 Hz
For Vector control: 2.5 Hz to 3.0 Hz
If the set value is too low, the motor torque is insufficient and the load may shift
when the brake is applied. Be sure to set n095 to a value larger than that of the
minimum output frequency (n016)and larger than that of the brake releasing
width shown in the following figure. If the set value is too large, the motor may
not run smoothly when it starts running.
Output freqency n095
Freqency detection level 1
Brake ON/OFF Signal
Signal Name Constant
Frequency
n058=4
detection 1
Brake ON/OFF Level Adjustment
(Note 2)
Signal Name
Frequency
detection level
Releasing width -2Hz
OFF
ON
Constant
n095=2.50 Hz
(Note 3)
to 4.00 Hz
Time
127