6:Anti-resonance. Turn "on" to inhibit the anti-resonance circuit (closing this switch performs the same function as connecting terminal 13 to 0v.).
7 & 8: Mode switches. (See table on following page under Stepper Mode Selection.)
9:Energise. Turn "on" to keep the drive permanently energised (closing this switch performs the same function as connecting terminal 7 to 0v).
0:Square-off inhibit. Turn "on" to delay the onset of square-off until a clock pulse frequency of 15kHz is reached. This effectively inhibits the square-off function. Square-off operates normally with this switch "off". The switch is only active in the 200 or 400 step/rev mode.
The following table shows the settings of switches 1-4 for various motor currents. The values shown in the table are two-phase-on levels, and are nominal values only since they depend to some extent on motor inductance. The selected current should not exceed the current rating of the motor. In the half step mode the one-phase- on current is approximately 35% greater than the level with two phases on, giving a similar electrical power into the motor. Bear in mind that if permanent square-off is selected there will be a significant increase in average motor current at low speeds.
| DIP Switch Settings | Motor Current | Motor Current | |
1 | 2 | 3 | 4 | for HD65 | for HD130 | |
| OFF | OFF | OFF | OFF | 6.5A | 13A | |
| ON | OFF | OFF | OFF | 6A | 12A | |
| ON | ON | OFF | OFF | 5.5A | 11A | |
| OFF | OFF | ON | OFF | 5A | 10A | |
| OFF | ON | ON | OFF | 4.5A | 9A | |
| OFF | OFF | OFF | ON | 4A | 8A | |
| ON | ON | OFF | ON | 3.5A | 7A | |
| ON | ON | ON | ON | 3A | 6A | |
| | | | | | | |
The following table shows the stepping modes selected by switches 7 and 8.
