Setting 0: Reverse Enabled
Possible to operate the motor in both forward and reverse directions.
Setting 1: Reverse Disabled
Drive disregards a Reverse run command or a negative frequency reference.
n
b1-06: Digital Input Reading
Defines how the digital inputs are read. The inputs are acted upon every 1 ms or 2 ms depending upon the setting.
No.
Name
Setting Range
Default
b1-06
Digital Input Reading
0, 1
1
Setting 0: Read once (1 ms scan)
The state of a digital input is read once. If the state has changed, the input command is immediately processed. With this setting
the drive responds more quickly to digital inputs, but a noisy signal could cause erroneous operation.
Setting 1: Read twice (2 ms scan)
The state of a digital input is read twice. The input command is processed only if the state does not change during the double
reading. This reading process is slower than the “Read once” process, but it is more resistant to noisy signals.
n
b1-08: Run Command Selection in Programming Mode
As a safety precaution, the drive will not normally respond to a Run command input when the HOA keypad is being used to
adjust parameters in Programming Mode (Verify Menu, Setup Mode, Parameter Settings Mode, and Auto-Tuning Mode). If
required by the application, set b1-08 to allow the drive to run while in Programming Mode.
No.
Parameter Name
Setting Range
Default
b1-08
Run Command Selection in Programming Mode
0 to 2
0
Setting 0: Run Command Is Not Accepted in Programming Mode
A Run command is not accepted while the HOA keypad is in Programming Mode.
Setting 1: Run Command Is Accepted in Programming Mode
A Run command is accepted in any HOA keypad mode.
Setting 2: Prohibit Entering Programming Mode during Run
It is not possible to enter the Programming Mode as long as the drive output is active. The Programming Mode cannot be
displayed during Run.
n
b1-11: Drive Delay Time Setting
If a time is set to b1-11, the drive will delay executing a Run command until the set time has expired. During Drive Delay
Time execution, the HOA keypad will display “WrUn”. Both Alarm and Run indicators will blink while the drive waits to
execute the Run command.
No.
Parameter Name
Setting Range
Default
b1-11
Drive Delay Time Setting
0 to 600 s
0
n
b1-14: Phase Order Selection
Sets the phase order for drive output terminals U/T1, V/T2, and W/T3.
Switching motor phases will reverse the direction of the motor.
No.
Parameter Name
Setting Range
Default
b1-14
Phase Order Selection
0, 1
0
Setting 0: Standard
Setting 1: Switch Phase Order
The direction of the motor is reversed.
n
b1-17: Run Command at Power Up
Determines whether an external Run command that is active during power up will start the drive.
1.2 b: Application
20
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
