166 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
5.2 b: Application
5.2 b: Application
◆ b1: Operation Mode Selection
■ b1-01: Speed Reference Selection
Selects the frequency reference source for the REMOTE mode.
NOTICE: Always turn off the RUN command before changing the setting of parameters d1-18 (Speed Reference Selection Mode),
b1-01 (Speed Reference Selection), or H1- (Multi-Function Digital Inputs). If the RUN command is on when changing any of these
settings, the motor may unexpectedly start running, and could result in injury.
Note: 1. If an Up/Down command is input to the drive but the speed reference entered is 0 or below the minimum frequency, the RUN
indicator LED on the digital operator will light.
2. Press the LO/RE key to set the drive to LOCAL and use the digital operator keypad to enter the speed reference.
Setting 0: Operator keypad
When b1-01 = 0, the user can enter the speed reference in the following ways:
• Switch between the speed references set to the d1- parameters according to the speed reference priority (d1-18) and
multi-function digital input terminal settings. For more detailed instructions, refer to d1: Speed Reference on page 183.
• Enter the speed reference directly using the digital operator keypad.
Instructions on changing speed reference settings can be found in The Drive and Programming Modes on page 98.
Setting 1: Terminals (analog input terminals)
If source of the speed reference is assigned to the control terminals (b1-01 = 1), then d1-18 will automatically be set to 0
so the drive uses multi-speed references d1-01 to d1-08. With this setting, the analog input terminal can be used to set the
speed reference. The drive will look to analog input terminals A1 or A2 for the speed reference (provided parameter
H3-02 or H3-10 must be set to “0”, assigning terminal A1 or A2 respectively to the speed reference). Parameter d1-18 is
to be set to 0. Refer to d1: Speed Reference on page 183 for more detailed.
Terminals A1 and A2 can accept a voltage signal to supply the speed reference to the drive. Table 5. 5 shows the
parameter settings and voltage levels required for each terminal.
Table 5.5 Analog Input Settings for Speed Reference Using Voltage Signals
Setting 2: MEMOBUS/Modbus Communications
When b1-01 = 2, the speed reference is given to the drive using MEMOBUS/Modbus register 0002H. Setting the speed
reference from MEMOBUS/Modbus requires setting parameter d1-18 to 0.
Note: Be sure to program the digital inputs for speed selection and set parameter b1-02 to 0 when switching the preset speeds set in the
d1- parameters via MEMOBUS/Modbus. Select the desired speed by switching these digital inputs using the MEMOBUS/
Modbus operation command (0001H).
Setting 3: Option card
When b1-01 = 3, the drive looks to an option card for the speed reference. Setting the speed reference from a
communication option card requires parameter d1-18 to be set to 0.
Note: 1. Be sure to program the digital inputs for speed selection and set parameter b1-01 to 0 when switching the preset speeds set in the
d1- parameters via a communication option card. Select the desired speed by switching these digital inputs using the drive
operation command (refer to the option card manual for details).
2. If the speed reference source is set for Option PCB (b1-01 = 3), but an option board is not installed, an oPE05 Operator Programming
Error will be displayed on the digital operator and the drive will not run.
No. Parameter Name Setting Range Default
b1-01 Speed Reference Selection 0 to 3 0
Terminal Signal Level
Parameter Settings
Notes
Signal Level Selection Function Selection Gain Bias
A1
0 to 10 Vdc H3-01 = 0
H3-02 = 0
(speed reference bias)
H3-03 H3-04 –
-10 to +10 Vdc H3-01 = 1
A2
0 to 10 Vdc H3-09 = 0
H3-10 = 0
(speed reference bias)
H3-11 H3-12 –
-10 to +10 Vdc H3-09 = 1
SIEP_C710616_38F_5_0.book 166 ページ ２０１５年１１月９日 月曜日 午後３時３６分
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