78
G7 ASD Operation Manual
52 — Frequency Priority — Connecting this terminal to CC allows for the frequency control to be switched from the
frequency command source selected as Frequency Mode #1 to Frequency Mode #2. This function is enabled by setting
the Reference Priority Selection to Frequency Source Priority Switching and is located at Program
⇒
Fundamental
Parameters
⇒
Standard Mode Selection
⇒
Reference Priority Selection
⇒
Frequency Source Priority
Switching
.
53 — VI/II Terminal Priority — Connecting this terminal to CC assigns command control to the VI/II Terminal and
overrides all other Control Terminal Strip input so long as the Command Mode is set to Use Control Terminal
Strip.
54 — Command Control Terminal Strip Priority — Connecting this terminal to CC overrides the FMOD setting and
assigns speed control to the Control Terminal Strip.
55 — Parameter Editing Enabling (LED) — The LED Keypad system is unavailable at the time of this release.
56 — Control Switch (torque, position) — This function allows for a system change from speed to torque or position as a
function of the V/f setting when connected to CC.
57 — Deviation Counter Clear — This function clears the Deviation Counter when operating in the Position Control
mode.
58 — Position Control Forward Limit LS — Connecting this terminal to CC will immediately stop the drive and hold its
position. If the connection remains the drive will time out and trip. This function is normally used for over-travel
conditions.
59 — Position Control Reverse Limit LS — Connecting this terminal to CC will immediately stop the drive and hold its
position. If the connection remains the drive will time out and trip. This function is normally used for over-travel
conditions.
60 — Light-Load High-Speed Operation Enable — Activating this terminal sets the lower limit of an output frequency
range in which the Light-load/High-speed function may be used (see
F330
). The Light-load/High-speed function
accelerates the output frequency of the ASD to the speed setting established in
F341
for the duration of the activation.
61 — Snap Stop Control Enable — TBD.
62 — Pre-excite Motor — Connecting this terminal to CC applies an excitation current to the motor (holds shaft stationary)
for the duration of the connection.
63 — System Consistent Sequence (BC: braking command) — TBD.
64 — System Consistent Sequence (B: braking release) — Connecting this input terminal to CC initiates the brake release
command. This setting requires that another discrete input terminal be set to 65 [System Consistent Sequence
(BA: braking answer)] to complete the brake release command and to convey the 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
Timer value is set at
F630
). Should the count-down timer expire before the brake releases or before the Braking
Answer is returned, fault E-11will occur. Otherwise, the brake releases the motor and normal motor operations resume.
The Braking Release function is primarily used at startup; but, may be used when the brake is applied while the motor
is running.
65 — System Consistent Sequence (BA: braking answer) — This setting is required when the Braking Release (64)
function is used. The function of this input terminal is to receive the returned the status of the braking system. The
returned status is either Released or Not Released.
If Released is returned within the time setting of
F630
, normal system function resumes.
If Not Released is returned or if the
F630
time setting times out before either signal is returned, then fault E-11 occurs.
The returned signal may also be used to notify the user or control a dependent subsystem.
66 — System Consistent Sequence (BT: braking test) — TBD.
67 — Output Frequency Hold — TBD.
Table 8 (Continued). Discrete Input Terminal Assignment Selections and Descriptions.
