Mitsubishi Electronics FR-A500 ユーザーズマニュアル

178

z

Set "1 or 3" (stop-on-contact control) in Pr. 270. Also advanced magnetic flux vector control must be

selected.

• Sink logic

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.

270

0

0, 1, 2, 3, 

275

9999

0 to 1000%, 9999

276

9999

0 to 15, 9999

Note:  The input signal terminals used depend on the Pr. 180 to Pr. 186 settings.

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"

Lift

<Without stop-on-contact control>

<With stop-on-contact control>

Vibration

Complete stop

Lift

NFB

STF

RH

RM

RL

RT

SD

U

V

W

MC

Motor

Power supply

Stop-on-contact selection 2

Start signal

Multi-speed selection 1

Multi-speed selection 2

Stop-on-contact selection 1

Mechanical

brake

R

S

T

(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)