4 Operation
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(9) Lock signal (/BK)
When the /HWBB1 or /HWBB2 signal is OFF and the HWBB function operates, the lock signal (/BK) will
turn OFF. At that time, Pn506 (lock Reference - servo OFF delay time) will be disabled. Therefore, the
servo- motor may be moved by external force until the actual lock becomes effective after the lock signal
(/BK) turns OFF.
CAUTION
•
The lock signal is not a safety-related part of a control system. Be sure to design the system so that the
system will not be put into danger if the lock signal fails in the HWBB state. Moreover, if a servomotor with a
lock is used, keep in mind that the lock for the servomotor is used only to prevent the movable part from
being moved by gravity or an external force and it cannot be used to lock the servomotor.
(10) Dynamic Brake
If the dynamic brake is enabled in Pn001.0 (Stopping Method for Servomotor after SV_OFF Command is
Received), the servomotor will come to a stop under the control of the dynamic brake when the HWBB
function works while the /HWBB1 or /HWBB2 signal is OFF.
CAUTION
•
The dynamic brake is not a safety-related part of a control system. Be sure to design the system so that
the system will not be put into danger if the servomotor coasts to a stop in the HWBB state. Usually, use a
sequence in which the HWBB state occurs after the servomotor is stopped using the reference.
•
If the application frequently uses the HWBB function, do not use the dynamic brake to stop the servomo-
tor. Otherwise element deterioration in the DRIVER may result. To prevent internal elements from
deteriorating, use a sequence in which the HWBB state occurs after the servomotor has come to a stop.
(11) Servo Alarm Output Signal (ALM)
In the HWBB state, the servo alarm output signal (ALM) is not sent.
Summary of Contents for LECYU Series
Page 30: ...1 Outline 1 9 1 4 3 Three phase 200 V LECYU2 V9 Models ...
Page 65: ...3 Wiring and Connection 3 11 3 Wiring Example with DC Power Supply Input DRIVER ...
Page 92: ...3 Wiring and Connection 3 38 External Dimensions Units mm 1 FN Type by Schaffner EMC Inc ...
Page 93: ...3 Wiring and Connection 3 39 2 FN Type ...
Page 143: ...4 Operation 4 44 ...