Stop-On-Contact Control Function (Pr. 275, Pr. 276) - Mitsubishi Electric FR-A520-0.4K Instruction Manual

4.2.62 Stop-on-contact control function (Pr. 275, Pr. 276)

Pr. 275 "stop-on-contact excitation 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 Factory
Number Setting
270 0
275 9999
276 9999
<Wiring and operation examples>
• Sink logic
NFB
Power supply
Start signal
Multi-speed selection 1
Multi-speed selection 2
Stop-on-contact selection 1
Stop-on-contact selection 2
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.
Setting Range
0, 1, 2, 3,
0 to 1000%, 9999
0 to 15, 9999
<Without stop-on-contact control>
Vibration Complete stop
Lift
MC
Mechanical
U
R
S V
T
W
STF
RH
RM
RL
RT
SD
178
Get other manuals https://www.bkmanuals.com
R elated param eters
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
Pr. 72 "PWM carrier frequency"
operation current"
Pr. 180 to Pr. 186
(input terminal function selection)
Pr. 270 "stop-on-contact, load torque
high-speed frequency selection"
<With stop-on-contact control>
Lift
Output
frequency
Ordinary mode Stop-on-contact control
Pr.4
Pr.5
Pr.6
0
brake
(a)
RH
RM
Motor
RL
RT
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)
PARAMETERS
Time
(b) (c)
ON
OFF
ON
OFF
ON
OFF
ON
OFF