1.7 H: Terminal Functions
144 YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
Setting B: Drive Overheat Alarm (OH2)
Triggers an OH2 alarm when the contact closes. Because this is an alarm, drive operation is
not affected.
Setting C: Analog Inputs A1/A2 Enable
If a digital input programmed for this function is open, both analog inputs A1 and A2 are
disabled. Close the input to enable the inputs.
Setting F: Not Used / Through Mode
Any digital input that is not used should be set to F. When set to “F”, an input does not
trigger any function in the drive. Setting F, however, still allows the input status to be read
out by a PLC via a communication option or MEMOBUS/Modbus communications
(through mode). This way external sensors can be connected to unused drive digital inputs,
thus reducing the need for separate PLC I/O units.
Setting 10/11: Up/Down Command
Using the Up/Down function allows the frequency reference to be set by two push buttons.
One digital input must be programmed as the Up input (H1-0x= 10) to increase the
frequency reference, the other one must be programmed as the Down input (H1-0x= 11) to
decrease the frequency reference.
The Up/Down function has priority over the frequency references digital operator, analog
inputs, and pulse input (b1-01 = 0, 1, 4). If the Up/Down function is used, then references
from these sources will be disregarded.
The inputs operate as shown in the table below.
Note: 1. An oPE03 alarm will occur when only one of the functions Up/Down is programmed for a digital input.
2. An oPE03 alarm will occur if the Up/Down function is assigned to the terminals while another input is
programmed for the Accel/Decel Ramp Hold function.
3. The Up/Down function can only be used for external reference 1. Consider this when using Up/Down
and the external reference switching function (H1- = 2).
Status
Description
Up (10) Down (11)
Open Open Hold current frequency reference
Closed Open Increase frequency reference
Open Closed Decrease frequency reference
Closed Closed Hold current frequency reference
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