Analog Input 1 (DI4)
Terminal DI4 can operate either as a Digital Input or Analog Input, below details how the Terminal is configured and the parameters associated with it when operating as an Analog Input.
When you intend to use terminal DI4 as an analog input a macro must be selected using P1-02 to match the intended use of the connected Analog device and has one of the following functions assigned to DI4:
Analog Speed Reference Input
Thermistor Input
Torque Sensor Input
Below is the configuration to setup the Terminal DI4 as an Analog Input.
Click to see the detailed fault reactions for P1-07 and P4-23
If the standard Macros (P1-02 = 1 - 12) are not suitable for the intended use then you can create a customer macro by using Group 12 after setting P1-02 to 0. Using Group 12 you are freely able to program Analog Input 1 to any of the desired analog functions as well as the rest of the terminals.
Note
Only terminals DI4 and DI5 are available to use as analog inputs if any other terminals are assigned analog functions they will not work as intended.
Parameter Number | Parameter Name | Units | Default | Available Settings | Access | Change During Run | Scaling | Size (Bytes) | CAN Register | CAN Sub Index | Modbus Register |
|---|---|---|---|---|---|---|---|---|---|---|---|
P1-03 | DI4 Analog Input 1 Format | N/A | 0: U 0-10 | See Table | RW | N | N/A | 1 | 2067h | 0 | 103 |
P1-04 | DI4 Analog Input 1 Offset | % | 0.0% | -500.0 ... 500.0 % | RW | Y | 1 = 0.1% | 2 | 2068h | 0 | 104 |
P1-05 | DI4 Analog Input 1 Scaling | % | 100.0% | -500.0 ... 500.0 % | RW | Y | 1 = 0.1% | 2 | 2069h | 0 | 105 |
P1-06 | DI4 Analog Input 1 Filter | sec | 0.00s | 0.00 ... 2.00 s | RW | Y | 1 = 0.01 s | 1 | 206Ah | 0 | 106 |
P1-07 | DI4 Analog Input Signal Loss Reaction | N/A | 0: No Reaction | 0 ... 2 | RW | Y | N/A | 1 | 206Bh | 0 | 107 |
P1-08 | DI4/DI5 Analog Input Signal Loss Speed | % | 80.00% | 0.00 ... 100.00 % | RW | Y | 1 = 0.01% | 1 | 206Ch | 0 | 108 |
P4-23 | Motor Thermistor Trip Reaction | N/A | 0: Stop at Next stop command and show thermistor fault message | 0 ... 2 | RW | Y | N/A | 1 | 21A7h | 0 | 423 |
Digital Input 4 only operates as an Analog Input when P1-02 is set to 6 or 7. Below are the analog configurations available for Analog Input 1.
Setting | Drive Display | Input Format |
|---|---|---|
U 0-10 | U 0-10 | 0 to 10 Volt Signal (Uni-polar |
U 10-0 | U 10-0 | 10 to 0 Volt Signal (Uni-polar) |
-10 - 10 | - 10- 10 | -10 to +10 Volt Signal (Bi-polar) |
A 0-20 | A 0-20 | 0 to 20mA Signal |
A 20-4 | A 20-0 | 20 to 0mA Signal |
t 4-20 | A 4-20 | 4 to 20mA Signal (4-20F trip if signal falls below 3mA) |
t 20-4 | A 20-4 | 20 to 4mA Signal (20-4F trip if signal falls below 3mA) |
PrE-t | PrE-t | Pre-Torque Input (Bipolar -10V to +10V) |
Ptc-th | Ptc-th | Motor PTC thermistor input |
ty-th | ty-th | Motor KTY84 thermistor input |
When Terminal DI4 is operating as an Analog Input this parameter allows an offset to be set, the value is set as a percentage of the full-scale range of the input, which is applied to the Analog Input signal.
When Terminal DI4 is operating as an analog input Scales the analog input by this factor, e.g. if P1-03 is set for 0 – 10, and the scaling factor is set to 200.0%, a 5 volt input at the control terminal DI4 will result in the drive running at maximum speed (P8- 01).
The pre and post scaling values can be viewed in parameters P0-56 and P0-57.
This filter helps in situations where the analog input is used for the speed reference or from a Torque sensor and the source signal is noisy which would result in oscillation in speed.
The filters primary aim is to make the signal smoother to the internal speed reference but will result in less responsiveness.
The drive will monitor for speed reference signal loss on the analog input terminals and react according to the setting of P1-07. Speed reference loss is defined as the point when the speed reference falls below a % (as per set in P1-08) of the previous reference for a period of 500ms.
Setting | Reaction |
|---|---|
0 | No Reaction |
1 | Run at speed in P1-08 (Analog Input Signal Loss speed) and return to speed reference when signal is reinstated. |
2 | Ramp to Stop using P8-04 (Deceleration ramp time) and trip Ai-LoS |
Used in conjunction with P1-07 (DI4/DI5 Analog Input Signal Loss Reaction) and P1-13 (Analog Input 2) Signal Loss Reaction setting 1 and is set as a % of the speed reference prior to the speed reference loss.
Used to set the trip reaction when a motor thermistor fault occurs.
Setting | Reaction |
|---|---|
0 | Stop at Next stop command and show thermistor fault message tC-tH or ty-th depending on P1-07 or P1-13 setting. |
1 | Trip Immediately and show thermistor fault message tC-tH or ty-th depending on P1-07 or P1-13 setting. |
2 | Continue running and show thermistor fault message tC-tH or ty-th depending on P1-07 or P1-13 setting. |