External Frequency Selection (Rex, Rh, Rm, Rl) - Mitsubishi Electric FR-S520E Series Instruction Manual

(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
Manual operation
Frequency setting
potentiometer
Automatic signal
4-20mADC
1.4.3

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 as the 15-speed select signal (REX).
Has precedence over the main speed setting signal (0 to 5V, 0 to 10V, 4 to
20mADC).
Speed 1
(high speed)
Speed 2
(middle speed)
Speed 3
(low speed)
ON
RH
ON
RM
ON
RL
REX
AU
SD
10
2
Inverter
5
4
Manual-Automatic Switching
Speed 5
Speed 6
Speed 4
Speed 7
Time
ON ON ON
ON ON ON
ON ON
Across
ON
AU-SD
Automatic
Operation
operation
4 to 20mA
Speed 10
Speed 11
Speed 9
Speed 8
RH
ON ON
RM
ON ON
RL
ON ON ON ON ON ON ON ON
REX
33
Input terminals
OFF
Manual
operation
0 to 5V
(0 to 10V)
Speed 12
Speed 13
Speed 14
Speed 15
Time
ON ON ON ON
ON ON
ON ON
1