Mitsubishi FR-S500 Instruction Manual Page 41

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32
(2) Current input (4, 5, AU)
To automatically perform operation under constant pressure or temperature control
using a fan, pump etc., enter the controller output signal of 4 to 20mADC across
terminals 4-5.
Terminals AU-SD must be shorted to use the 4 to 20mADC signal for operation.
(Assign the signal AU using any of Pr. 60 to Pr. 63.)
When the multi-speed signal is input, the current input is ignored.
Automatic/manual
signal switching
Automatic signal
DC4-20mA
AU
SD
10
2
5
4
Across
AU-SD
Inverter
OFFON
Operation
Manual operation
Frequency setting
potentiometer
Automatic
operation
4 to 20mA
Manual-Automatic Switching
Manual
operation
0 to 5V
(0 to 10V)
1
.7.3 External frequency selection (REX, RH, RM, RL)
Up to 15 speeds (*) may be selected for an external command forward rotation start or
up to 7 speeds for an external command reverse rotation start according to the
combination of connecting the multi-speed select terminals REX, RH, RM and RL-SD,
and multi-speed operation can be performed as shown below by shorting the start
signal terminal STF (STR)-SD.
Speeds (frequencies) may be specified as desired from the operation panel or
parameter unit as listed below.
CAUTION
* Change the setting of Pr. 63 "STR terminal function selection" to "8", and assign
and use the 15-speed select signal (REX).
Has precedence over the main speed setting signal (0 to 5V, 0 to 10V, 4 to 20mA
DC).
REX
Speed 1
(high speed)
Speed 5
Speed 6
Speed 7
Time
ON ON ON ON
R
M
ONONON
RL
RH
ON ON ON ON
Output frequency (Hz)
(low speed)
Speed 3
Speed 2
(middle speed)
Speed 4
Time
Speed 9
Speed 10
Speed 11
Speed 12
Speed 13
Speed 14
Speed 15
ON ON ON ON
RH
ON ON ON ON
RM
ON ON ON ON
RL
ONON ON ON ON ON ON ON
REX
Output frequency (Hz)
Speed 8
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