Input Terminal Functions
The digital multifunction inputs can be set to several functions using the H1-01 to H1-05 parameters (terminal
S3 to S7 function selection). The following section describes the input functions not mentioned in any other section.
Related Parameters
Parameter
No.
H1-01
H1-02
H1-03
H1-04
H1-05
Name
Terminal S3 function selection
Terminal S4 function selection
Terminal S5 function selection
Terminal S6 function selection
Terminal S7 function selection
Factory
Setting
Change during
Operation
80
84
81
83
F
No
No
No
No
No
A
A
A
A
A
V/f
Control Methods
Open
Loop
Vector
A
Close d Loop
Vector
A
Closed
Loop
Vector
(PM)
A
A
A
A
A
A
A
A
A
A
A
A
A
6
Disable the Inverter Output (Baseblock)
Using a baseblock command the inverter output can be cut immediately. There are two baseblock functions available, a hardware baseblock and a software baseblock.
Related Parameters
Parameter
No.
S3-12 Baseblock restart selection
Name
Factory
Setting
Change during
Operation
0 No
V/f
A
Control Methods
Open
Loop
Vector
A
Close d Loop
Vector
A
Closed
Loop
Vector
(PM)
A
Multifunction Inputs (H1-01 to H1-05)
Set
Value
Function
8 External baseblock NO (NO contact: Baseblock at ON)
9 External baseblock NC (NC contact: Baseblock at OFF)
V/f
Yes
Yes
Control Methods
Open Loop
Vector
Closed
Loop
Vector
Yes
Yes
Yes
Yes
Closed
Loop
Vector (PM)
Yes
Yes
Hardware Baseblock
When hardware baseblock is activated, the power supply of the IGBT driver circuit is cut off and the motor starts to coast. To use this baseblock function the digital input S8 must be used. The input is a NC input, i.e. if terminal S8 is open, the inverter is base block condition.
Software Baseblock
When software baseblock is used, the inverter output is cut by a software function. To use this baseblock function one of the digital inputs must be set to baseblock, i.e. one of the parameters H1-01 to H1-05 (digital input terminal S3 to S7 function selection) must be set to 8 or 9 (Baseblock command NO/NC). The input can be used with a NC as well as with a NO contact.
Baseblock Restart Behavior
If baseblock is activated, the inverter output is immediately stopped. Using parameter S1-12 it can be selected, whether the Up/Down command input has to be cycled to restart when the baseblock is disabled or not.
6-
50
•
If S1-12 = 0 the Up/Down command has to be cycled.
Up/Down
Baseblock
OFF ON
ON
OFF
S1-16 +
S1-04
S1-16 +
S1-04
Output frequency
During Run 1 Output
During Run 2 Output
OFF ON
OFF
ON
•
If S1-12=1 the Up/Down command must not be cycled. The inverter automatically restarts when baseblock is deactivated and the Up/Down command is still active.
Up/Down
Baseblock
OFF ON
ON
OFF
S1-16 +
S1-04
S1-16 +
S1-04
Output frequency
During Run 1 Output
During Run 2 Output
OFF ON
OFF
ON
Stopping the Inverter on External Device Errors (External Fault Function)
Set
Value
24
25
26
20
21
22
23
The external fault function activates the fault contact output and stops the Inverter operation. Using this function the inverter operation can be stopped by the break down of peripheral devices or other external errors. The digital operator will display EFx (External fault [input terminal Sx]). The x in EFx shows the number of the terminal at which the external fault signal is input. For example, if an external fault signal is input to terminal
S3, EF3 will be displayed.
To use the external fault function, set one of the values 20 to 2F in one of the parameters H1-01 to H1-05 (digital input terminal S3 to S7 function selection).
Select the set value for H1-01 to H1-05 by a combination of any of the following three conditions.
•
Signal input level from peripheral devices
•
•
External fault detection method
Operation after external fault detection
The following table shows the relationship between the external fault conditions and the set value in H1-.
Input Level
(See Note 1.)
NO Contact NC Contact
Yes
-
Yes
-
Yes
Yes
-
Yes
-
Yes
-
Yes
-
Error Detection Method
(See Note 2.)
Constant
Detection
Detection
During Operation
Yes -
Yes
-
-
Yes
Yes
-
-
Yes
Yes
-
-
Yes
Operation During Error Detection
Decelerate to Stop
(Error)
Yes
-
-
Yes
Yes
Yes
-
Coast to
Stop (Error)
Yes
Yes
Yes
-
-
-
-
Emergency
Stop (Error)
-
-
-
-
-
-
-
Continue
Operation
(Warning)
-
-
-
-
-
-
-
6
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51
Set
Value
2B
2C
2D
2E
2F
27
28
29
2A
-
-
-
-
Input Level
(See Note 1.)
NO Contact
-
Yes
Yes
Yes
Yes
NC Contact
Yes
-
Yes
-
Yes
-
Yes
-
Yes
Error Detection Method
(See Note 2.)
Constant
Detection
Detection
During Operation
Yes
Yes
Yes
-
-
Yes
Yes
-
-
-
-
Yes
Yes
-
-
Yes
Yes
Decelerate to Stop
(Error)
-
-
-
-
-
-
-
-
-
Operation During Error Detection
Coast to
Stop (Error)
Yes
-
-
-
-
-
-
-
-
Emergency
Stop (Error)
Yes
-
-
-
-
-
Yes
Yes
Yes
* 1. Sets the input level at which errors are detected. (NO contact: External error when ON; NC contact: External error when OFF).
* 2. Set the detection method to detect errors using either constant detection or detection during operation.
Constant detection: Detects while power is supplied to the Inverter.
Detection during operation: Detects only during Inverter operation.
Continue
Operation
(Warning)
-
Yes
Yes
Yes
Yes
-
-
-
-
6
Using the Timer Function
The multi-function digital input terminals S3 to S7 can be used as a timer function input and the multi-function output terminals M1-M2, M3-M4, and M5-M6 can be used as a timer function output.
Related Parameters
Parameter
No.
b4-01 b4-02
Name
Timer function ON-delay time
Timer function OFF-delay time
Factory
Setting
Change during
Operation
0.0 s
0.0 s
No
No
V/f
A
A
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
A
A
A
A
Closed
Loop
Vector
(PM)
A
A
Multi-function Digital Inputs (H1-01 to H1-05)
Set
Value
Function
V/f
Yes
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Yes Yes
Closed
Loop
Vector
(PM)
Yes 18 Timer function input
Multifunction Outputs (H2-01 to H2-03)
Set
Value
12
Function
Timer function output
V/f
Yes
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Yes Yes
Closed
Loop
Vector
(PM)
Yes
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52
Setting Example
When the timer function input is ON for longer than b4-01, the timer output function is turned ON. When the timer function input is OFF for longer than b4-02, the timer output function is turned OFF. An example of timer function operation is given in the following diagram.
Timer function input
Timer function output
Fig 6.21 Timer Function Operation Example
Motor Contactor Answer Back Detection
The motor contactors can be observed using the motor contactor answer back function. Therefore an auxiliary contact of the motor contactors must be connected to a digital input which is set to for this function
(H1-=86). If the contactor close command is set and no answer back signal comes from the contactor, the inverter detects a SE1 fault (see below). Parameter S1-28 selects if the detection is enabled or disabled and whether the SE1 fault is reset automatically or if has to be reset manually.
Related Parameters
Parameter
No.
Name
Factory
Setting
Change during
Operation
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
S1-28
Selects how a SE1 fault is reset.
0: Manual Reset
1: Automatic reset at stop
2: No SE1 detection
0 No A A A A
Multi-function Digital Inputs (H1-01 to H1-05)
Set
Value
86
Function
Motor contactor answer back
V/f
Yes
Control Methods
Open
Loop
Vector
Yes
Closed
Loop ´
Vector
Yes
Closed
Loop
Vector
(PM)
Yes
6
6-
53
SE1 fault (SE1:Contactor Feed-back Faults)
There are 3 possible fault conditions.
Case 1: The motor contactor was closed (Contactor feedback input was on) before the contactor close
command was output.
Case 2: The motor contactor cannot be closed within the contactor close delay time.
Case 3: The motor contactor is opened during inverter run.
Case 4: The contactor confirmation input was enabled before the contactor close output was set.
DC Injection/
Zero Servo
Speed
Run Delay
Up/DownSpeed
Inverter enable (D/I)
Speed Selection
Contactor Control (D/O)
Contactor confirmation (D/I)
Case 1
Case 2
Case 3
Case 4
6
Changing the PG direction
A digital input can be used to change over the PG feedback signal direction. Therefore one of the parameters
H1- must be set to 89.
The PG direction is clockwise (CW) when the input is open and counterclockwise (CCW) when the input is closed. The parameter F1-05 has no effect if this function is activated.
Multi-function Digital Inputs (H1-01 to H1-05)
Set
Value
89
Function
PG direction change over
V/f
No
Control Methods
Open
Loop
Vector
No
Closed
Loop ´
Vector
Yes
Closed
Loop
Vector
(PM)
Yes
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54
Motor 2 Selection
If a digital input is set to “Motor 2 selection” (H1- = 16), this input can be used to switch over between motor 1 and motor 2 settings (E1/E2- and E3/E4-). A digital output can be used to monitor the selection (H2- = 1C).
If motor 2 is selected, the speed set in d1-19 will be the speed reference. d1-19 has priority over all speed inputs except the service speed input.
The output signal sequence (brake control, contactor etc.) is the same as for motor 1.
This function is not available for Closed Loop Vector for PM motors.
If motor 2 is selected, the brake sequence is active and rescue operation can be performed.
Related Parameters
Parameter
No.
d1-19
Name
Motor 2 speed reference
Factory
Setting
Change during
Operation
0.00 Hz No
V/f
A
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector for PM
A A -
Set by
Autotuning
No
Multi-function Digital Inputs (H1-01 to H1-05)
Set
Value
16
Function
Motor 2 selection (OFF: motor 1, ON: motor 2)
V/f
A
Control Methods
Open
Loop
Vector
A
Closed
Loop ´
Vector
A
Closed
Loop
Vector
(PM)
-
6
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55
