Mitsubishi FR-A500 Series - Stop on Contact (Pr. 275, Pr. 276)

PARAMETERS
166
Pr. 4 "multi-seed setting (high speed)"
Pr. 5 "multi-seed setting (middle speed)"
Pr. 6 "multi-seed setting (low speed)"
Pr. 48 "second stall prevention
operation current"
Pr. 72 "PWM carrier frequency"
Pr. 180 to Pr. 186 (input terminal
function selection)
Pr. 270 "stop-on-contact, load torque
high-speed frequency selection"
Related
p
arameters
4.2.62 Stop on contact (Pr. 275, Pr. 276)
Pr. 275 "stop-on-contact exciting current
low-speed multiplying factor"
Pr. 276 "stop-on-contact PWM carrier
frequency"
!
Set "1 or 3" (stop-on-contact control) in Pr. 270. Also advanced magnetic flux vector control must be
selected.
Parameter
Number
Factory
Setting
Setting Range
270 0 0, 1, 2, 3,
275 9999 0 to 1000%, 9999
276 9999 0 to 15, 9999
Lift
<Without stop-on-contact control> <With stop-on-contact control
>
Vibration
Complete stop
Lift
<Wiring and operation examples>
• Sink logic
NFB
R 〈L
1
〉
S
〈
L
2
〉
T 〈L
3
〉
STF
RH
RM
RL
RT
SD
U
V
W
MC
MotorPower supply
Stop-on-contact selection 2
Start signal
Multi-speed selection 1
Multi-speed selection 2
Stop-on-contact selection 1
Mechanical
brake
(a) (b) (c)
Time
Pr.4
RH
ON
OFF
RM
ON
OFF
RL
ON
OFF
RT
ON
OFF
Pr.5
Pr.6
Output
frequency
0
Ordinary mode
Stop-on-contact control
Goes into stop-on-contact control mode when both
RL and RT switch on.
Note: (RL and RT may be switched on in any order with
any time difference.)
(a) Acceleration time (Pr. 7)
(b) Deceleration time (Pr. 8)
(c) Second deceleration time (Pr. 44)
Note: The input signal terminals used depend on the Pr. 180 to Pr. 186 settings.
When both the RT and RL terminals are switched on, the inverter enters the stop-on-contact mode, in which
operation is performed at the frequency set in Pr. 6 "multi-speed setting (low speed)" independently of the
preceding speed.