6. Programming Features
51
=6: Enables communications. (Refer to page 83.)
Example of frequency reference by voltage signal
Setting Operation Conditions
Reverse Run Prohibit (n05)
The Reverse Run Prohibit setting disables accepting a reverse RUN
command from the control circuit terminal or Digital Operator. This set-
ting is used for applications where a reverse RUN command can cause
problems.
Multi-step Speed Selection
Up to 16 speed steps (including Jog frequency reference) can be set
using the following combinations of frequency reference and input ter-
minal selections.
Setting
Description
0
Reverse run enabled.
1
Reverse run disabled.
IM
2 k
Ω
(0 to +10 V)
FR
FC (0 V)
n03 : 2
(Factory setting: 0)
FS (Frequency Setting Power
+12 V 20 mA)
Master Speed
Frequency
Reference
8-step speed change
n02=1 (Operation mode selection)
n03=1 (Frequency reference selection)
n21=25.0 Hz (Frequency reference 1)
n22=30.0 Hz (Frequency reference 2)
n23=35.0 Hz (Frequency reference 3)
n24=40.0 Hz (Frequency reference 4)
n25=45.0 Hz (Frequency reference 5)
n26=50.0 Hz (Frequency reference 6)
n27=55.0 Hz (Frequency reference 7)
n28=60.0 Hz (Frequency reference 8)
n36=1
n37=6 (Multi-function contact input terminal S3)
n38=7 (Multi-function contact input terminal S4)
n39=8 (Multi-function contact input terminal S5)
When all multi-function
reference inputs are OFF, the
frequency reference selected
by constant n03 (frequency
reference selection) becomes
effective.
NOTE
S1
S2
S3
S4
S5
FWD
RUN/STOP
REV
RUN/STOP
MULTI-STEP
SPEED REF 1
MULTI-STEP
SPEED REF 2
MULTI-STEP
SPEED REF 3
SC
n36=2 (Input terminal S2) Initial Setting
n37=6 (Input terminal S3) Change the setting to 6.
n38=7 (Input terminal S4) Change the setting to 7.
n39=8 (Input terminal S5) Change the setting to 8.