5.7 H: Terminal Functions238 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical ManualSetting 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 terminal input selection (terminal A1, A2, A3)When closed, the terminals specified in H3-14 are enabled. When open, the drive disregards the input signal to the analogterminals.Setting D: PG encoder disableWhen closed the drive disregards PG feedback from the motor when using V/f Control with PG. When the terminal isopened again, the drive resumes using PG feedback to control motor speed.Setting E: ASR integral resetSwitches between PI control or simply P control by resetting the integral value. As long as the terminal is closed, integraloperation is disabled and the drive uses P control. When the terminal opens, PI control resumes.Setting F: Through modeSelect this setting when the terminal is not used or when using the terminal in the pass-through mode. When set to F, aninput does not trigger any function in the drive. Setting F, however, still allows the input status to be read out by a PLCvia a communication option or MEMOBUS/Modbus communications.Setting 10, 11: Up, Down commandUsing the Up/Down function allows the frequency reference to be set by two push buttons. One digital input must beprogrammed as the Up input (H1- = 10) to increase the frequency reference, and the other one must be programmedas the Down input (H1- = 11) to decrease the frequency reference.The Up/Down function has priority over the frequency references from the digital operator, the analog inputs, and thepulse input (b1-01 = 0, 1, 4). If the Up/Down function is used, then references provided by these sources will bedisregarded.The inputs operate as shown in Table 5.36.Table 5.36 Up, Down commandNote: 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. For more information on alarms, Refer to oPE Codes, Causes, and Possible Solutions on page 357.3. The Up/Down function can only be used for parameter b1-01. Consider this when using parameter b1-15 switching command(H1- = 2).Using the Up/Down Function with Frequency Reference Hold (d4-01)• When the frequency reference hold function is disabled (d4-01 = 0), the Up/Down frequency reference will be reset to0 when the Run command is cleared or the power is cycled.• When d4-01 = 1, the drive will save the frequency reference set by the Up/Down function. When the Run command orthe power is cycled, the drive will restart with the reference value that was saved. The value that was saved can be resetby closing either the Up or Down input without having a Run command active. Refer to d4-01: Frequency ReferenceHold Function Selection on page 201.Using the Up/Down Function with Frequency Reference LimitsThe upper frequency reference limit is determined by parameter d2-01.The value for the lower frequency reference limit depends on the setting of parameter d4-10, and can be set by an analoginput or parameter d2-02. Refer to d4-10: Up/Down Frequency Reference Limit Selection on page 205 for details.When a Run command is applied, the lower limits work as follows:Status Drive OperationUp (10) Down (11)Open Open Hold current frequency referenceClosed Open Increase frequency referenceOpen Closed Decrease frequency referenceClosed Closed Hold current frequency reference
