(2) Brake release signal [BK] '_
Brake release signal BK is an output signal to interlock the timing'between current
I Conduction or motor speed and brake release.
By setting parameter 19_b2 : 1, the brake release signal becomes effective. In
this case, interlocking constant set by parameter 43 or 44 becomeseffective.
Timing with SERV0ON Signal Timing with Main Circuit Power Supply
ON
-_--4 TO 6ms MAIN CIRCUIT I OFFSERVO OFF POWER SUPPLY
SVON L SERVO ON J I 25 TO 35ms
c_
2TO4ms - -j '
BK SIGNAL _' --, B--KSIGNAL
:_ t [ NON-CURRENT
._ (CURRENTCONDUCTION ] !_tB =,,CONDUCTION
TO MOTOR} CURRENT ='" ' tB ., CURRENT CURRENT [
NON-CURRENT CONDUCTION - -_ CONDUCTION - CONDUCTION
CONDUCTION TO MOTOR
tB: Brake time (set by parameter 43:8 to lOOms)
TIMINGATSERV0OFF,MAINCIRCUITPOWERSUPPLYOFFORALARMOCCURRENCE
SERVO OFF
• AT SERVO OFF SVON SERVO ON I"
• AT ALARM ALM
OCCURRENCE NORMAL ], ALARM
ON
t
• AT MAIN CIRCUI;F I
OFF
•_ POWER SUPPLYOFF
I
-,-* NON-CURRENT
o
MOTOR CURRENT CURRENT CONDUCTION
CONDUCTION APPLIED
Q i
If this time exceeds
BK sIGNAL -.[
200ms,
I
' _ BK signal is turned
I off regardless of
t
r/min I NB setting value.
I '
MOTOR SPEEDN I
I
!
N8 __ (DYNAMIC BRAKE)
0 = t
Whenmotor speed N is lower than NBBKsignal is output at the Sametime as motor
non-current condition.
NB: SPEEDat which BKsignal is turned off(set by parameter 44:1 to 10000 r/min).
-- 115--
To Next Page
Loading...
