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1.5 How to use the input signals
(assigned terminals RL, RM, RH, STR)
These terminals can be
changed in function by
setting Pr. 60 to Pr. 63.
1.5.1
Multi-speed setting (RL, RM, RH, REX signals):
Pr. 60 to Pr. 63 setting
Remote setting (RL, RM, RH signals):
Pr. 60 to Pr. 63 setting
By entering frequency commands into the RL, RM, RH and REX signals and turning
on/off the corresponding signals, you can perform multi-speed operation (15
speeds). (For details, refer to page 27.)
If the operation panel is away from the control box, you can perform continuous
variable-speed operation with signal contacts, without using analog signals. (For
details, refer to page 93.)
1.5.2
Second function selection (RT signal):
Pr. 44 "second acceleration/deceleration time"
Pr. 45 "second deceleration time"
Pr. 46 "second torque boost"
Pr. 47 "second V/F (base frequency)"
To set any of the above functions, turn on this
"RT signal".
1.5.3
Current input selection "AU signal":
When a fan, pump etc. is
used to perform operation
of constant- pressure/
temperature control,
automatic operation can
be performed by entering
the 4-20mADC output
signal of a regulator into
across terminals 4-5.
When the 4-20mADC signal is used to perform operation, always short the AU signal.
REMARKS
The current input is ignored if the multi-speed signal is input.
Pr. 60 "RL terminal function selection"
Pr. 61 "RM terminal function selection"
Pr. 62 "RH terminal function selection"
Pr. 63 "STR terminal function selection"
"0, 1, 2, 8"
"0, 1, 2"
Automatic/manual
signal switching
Manual operation
Frequency setting
potentiometer
Automatic signal
4-20mADC
31
How to use the input signals (assigned terminals
Pr. 60 to Pr. 63 setting
Start
Second acceleration
/deceleration
Pr. 60 to Pr. 63 setting
Across
AU-PC
AU
PC
10
Operation
2
Inverter
5
4
RL, RM, RH, STR)
Page 96
"3"
Inverter
STF (STR)
RT
PC
"4"
ON
OFF
Manual
operation
Automatic
0 to 5V
operation
(0 to 10V)
4 to 20mA
1
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