6-11
6
Setting Precautions
When setting analog inputs to step 1 and step 2, observe the following precautions.
• When setting terminal A1's analog input to step 1 set b1-01 to 1, when setting d1-01 (Frequency Reference
1) to step 1 set b1-01 to 0.
• When setting terminal A2's analog input to step 2 set H3-09 to 2 (auxiliary frequency reference). When
setting d1-02 (Frequency Reference 2) to step 2 set H3-09 to an other setting than 2.
Connection Example and Time Chart
The following diagram shows a time chart and control circuit connection example for a 9-step operation.
Fig 6.10 Control Circuit Configuration for 9-step Operation
Fig 6.11 Multi-step speed command/Jog Frequency Selection Time Chart
Note:
• The multifunction input setting “Multistep Speed Reference 4” (32) has to be used for selecting the fre-
quency references from d1-09 to d1-16.
• The multifunction input setting “Jog Frequency 2” (69) can be used for jog frequency selection when a 3-
wire control is used for the control circuit. If it is selected while the inverter is initialized to 2-wire control
an OPE03 alarm will be displayed.
Inverter
Forward/stop
Reverse/stop
Fault reset
Multi-step command 3
Multi-step command 1
Multi-step command 2
Jog frequency
Digital input neutral
SN
Forward/stop
Multi-step speed
command 1
Multi-step speed
command 2
Multi-step speed
command 3
Jog frequency
selection
Frequency refer-
ence 2: Auxiliary
speed frequency
Frequency
reference 3
Frequency
reference 4
Frequency
reference 5
Frequency
reference 6
Jog frequency
Frequency
reference 8
Frequency
reference 7
Frequency
reference
Frequency ref-
erence 1: Mas-
ter speed
frequency
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