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ATV58 Control Terminals |
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LI1 = Forward LIx = Reverse
Two Wire Control
ATV58 control terminals | ||||
24 V | LI1 | LI2 | LIx | |
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LI1 = Stop | LI2 = Forward | LIx = Reverse |
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Three Wire Control
Motor Frequency | PlusMinusSpd.eps |
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0 |
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1
Stop
0
1
Forward
0
1
Reverse
0
Three Wire Control Timing Diagram
Frequency |
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HSP |
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LSP |
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0 |
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X | Y | 20 | ||
(mA) |
Analog Input 2 Scaling
09/2003
Altivar® 58 TRX AC Drives
Drive Control Parameters
DRIVE CONTROL PARAMETERS
Drive control parameters can be viewed and modified only when the access locking switch on the keypad display is in the total unlock position (see page 24). They can be modified only when the motor is stopped.
Two-Wire Control
The drive controller is
•Detection of the state of logic inputs.
•Detection of a change in the state of logic inputs.
•Detection of the state of logic inputs with Forward operation having priority over Reverse operation.
Three-Wire Control
The
Reverse Inhibit
This function disables reverse operation. It disables the REV key on the keypad display and also prohibits reverse operation commanded by the PI Regulator or Speed Reference Summation functions. Applications such as those involving pumps, fans, or other applications where reverse operation may cause mechanical damage may require reverse to be disabled.
Analog Input Configuration
This parameter allows Analog Input 2 (AI2) on the drive controller to be redefined to accept a range of signals. The input can be configured for 0 to 20 mA, 4 to 20 mA, or the minimum value (X) and maximum value (Y) can be user assigned by programming X and Y (with 0.1 mA resolution). Reverse- acting operation can also be configured. For example, 20 to 4 mA, where 20 mA equals low speed and 4mA equals high speed.
Keypad Command
When this parameter is set to Yes, the drive controller can be controlled by the keypad. The factory default is No. Enabling this parameter allows operation of the drive controller with the keypad RUN, STOP/RESET, and FWD/REV keys. In this mode of operation, the speed reference is entered in hertz or in customer defined units by using the keypad up or down arrow keys. Also, a logic input configured for Freewheel Stop, Fast Stop, or Stop by DC Injection will remain active at the control terminal strip.
Stop Priority
This parameter allows the keypad STOP key to remain active even if the drive is being commanded via the terminal strip or a serial connection. The factory default is Yes. If set to No, the keypad STOP key will not be active and the drive controller will not stop when it is pressed.
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