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Table 5. Discrete Input Terminal assignment selections and descriptions.
Sel. No. | Terminal Selection Descriptions | ||
NO NC | |||
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86 | 87 | Binary Write — Writes the status of the discrete input terminals to the control board during binary input speed | |
control. | |||
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88 | 89 | UP/DOWN Frequency (up) — Increases the speed of the motor for the duration of activation until reaching the | |
Upper Limit setting or increases the speed of the motor in steps (see F264 for more information on this feature). | |||
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90 | 91 | UP/DOWN Frequency (down) — Decreases the speed of the motor for the duration of activation until reaching the | |
Lower Limit setting or decreases the speed of the motor in steps (see F264 for more information on this feature). | |||
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UP/DOWN Frequency (clear) — While operating in the Up/Down Frequency speed control mode this terminal
9293 initiates a 0 Hz output command. If operating with an activated UP/DOWN Frequency (up or down) terminal, the output goes to the Lower Limit (F013) setting.
Forward/Reverse — This setting operates in conjunction with another terminal being set to the Run/Stop function.
9899 When configured to Run (Run/Stop to CC), the make or break of this connection to CC changes the direction of the motor.
100 | 101 | Run/Stop — This terminal enables the motor to run when activated and disables the motor when deactivated. | |
102 | 103 | Commercial Power/ASD Switching — Initiates the | |
See parameter F354 for more information on this feature. | |||
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104 | 105 | Frequency Reference Priority Switching — Toggles frequency control to and from the settings of F004 and | |
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| F207. | |
106 | 107 | V/I Terminal Priority — Assigns Speed control to the V/I Terminal and overrides the F004 setting. | |
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108 | 109 | Command Terminal Board Priority — Assigns Command control to the Terminal Board and overrides the F003 | |
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| setting. | |
110 | 111 Edit Enable — Allows for the override of the lockout parameter setting (F700) allowing for parameter editing. | ||
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112 | 113 | Control Switching — Toggles the system to and from the speed control and the torque control modes. | |
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122 | 123 | Fast Deceleration — Using dynamic braking (if enabled and supported), stops the motor at the fastest rate allowed | |
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| by the load. | |
124 | 125 | Preliminary Excitation — Applies an excitation current to the motor (holds shaft stationary) for the duration of the | |
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| activation. | |
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| Brake Request — Braking Request — Initiates the brake release command. This setting requires that another | |
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| discrete input terminal be set to Brake Answerback Input to complete the brake release command and to convey the | |
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| status of the braking system to the user or to a dependent subsystem. |
Once the braking release function is initiated, the Trouble Internal Timer begins to count down (Trouble Internal
126127 Timer value is set at F630). Should the
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| The Braking Release function is primarily used at startup; but, may be used when the brake is applied while the motor |
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| is running. |
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| Brake Answerback Input — Brake Answerback Input — This setting is required when the Braking Request |
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| function is used. The function of this input terminal is to receive the returned the status of the braking system. The |
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| returned status is either Released or Not Released. |
130 | 131 | If Released is returned within the time setting of F630, normal system function resumes. |
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| If Not Released is returned or if the F630 time setting times out before either signal is returned, then fault |
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| The returned signal may also be used to notify the user or control a dependent subsystem. |
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134 | 135 | Traverse Permission Signal — Enables/Disables the Traverse function. See parameter F980 for more information |
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| on this feature. |
| Note: | NO/NC = Normally Open/Normally Closed. |
238 | H9 ASD Installation and Operation Manual |