203Bh I2t Parameters
Function
This object contains the parameters for I2t monitoring.
I2t monitoring is activated by entering a value greater than 0 in 203Bh:01 and 203Bh:02 (see I2t Motor overload protection).
With one exception, I2t monitoring can only be used for closed loop mode: If I2t is activated in open loop mode, the current is reduced to the smaller of 203Bh and 2031h.
Object description
| Index | 203Bh |
| Object name | I2t Parameters |
| Object Code | ARRAY |
| Data type | UNSIGNED32 |
| Savable | yes, category: tuning |
| Firmware version | FIR-v1426 |
| Change history |
Firmware version FIR-v1512: "Savable" entry changed from "no" to "yes, category: application". Firmware version FIR-v1512: The number of entries was changed from 7 to 8. Firmware version FIR-v1614: "Savable" entry changed from "yes, category: application" to "yes, category: tuning". |
Value description
| Subindex | 00h |
| Name | Highest Sub-index Supported |
| Data type | UNSIGNED8 |
| Access | read only |
| PDO mapping | no |
| Allowed values | |
| Preset value | 07h |
| Subindex | 01h |
| Name | Nominal Current |
| Data type | UNSIGNED32 |
| Access | read / write |
| PDO mapping | no |
| Allowed values | |
| Preset value | 00000000h |
| Subindex | 02h |
| Name | Maximum Duration Of Peak Current |
| Data type | UNSIGNED32 |
| Access | read / write |
| PDO mapping | no |
| Allowed values | |
| Preset value | 00000000h |
| Subindex | 03h |
| Name | Threshold |
| Data type | UNSIGNED32 |
| Access | read / write |
| PDO mapping | no |
| Allowed values | |
| Preset value | 00000000h |
| Subindex | 04h |
| Name | CalcValue |
| Data type | UNSIGNED32 |
| Access | read / write |
| PDO mapping | no |
| Allowed values | |
| Preset value | 00000000h |
| Subindex | 05h |
| Name | LimitedCurrent |
| Data type | UNSIGNED32 |
| Access | read / write |
| PDO mapping | no |
| Allowed values | |
| Preset value | 00000000h |
| Subindex | 06h |
| Name | Status |
| Data type | UNSIGNED32 |
| Access | read / write |
| PDO mapping | no |
| Allowed values | |
| Preset value | 00000000h |
| Subindex | 07h |
| Name | ActualResistance |
| Data type | UNSIGNED32 |
| Access | read / write |
| PDO mapping | no |
| Allowed values | |
| Preset value | 00000000h |
Description
The subindices are divided into two groups: subindex 01h and 02h contain parameters for the control, subindices 03h to 06h are status values. The functions are as follows:
- 01h: The rated current specified in the motor data sheet is entered here in mA. This must be smaller than the current entered in object 2031h, otherwise monitoring is not activated. The specified value is interpreted as root mean square.
- 02h: Specifies the maximum duration of the peak current in ms.
- 03h: Threshold, specifies the limit in mA that determines whether the maximum current or rated current is switched to.
- 04h: CalcValue, specifies the calculated value that is compared with the threshold for setting the current.
- 05h: LimitedCurrent, contains the momentary current as root mean square set by I2t.
- 06h: Current status. If the sub-entry value is "0", I2t is deactivated; if the value is "1", I2t is activated.