Configuration
The pulses generated are configurable; the properties described here can be adjusted.
Pulse polarity
| Alternating | Bipolar (alternating positive-negative) |
| Non-alternating | Unipolar |
With an alternating pulse, the plus and min is reversed with every subsequent pulse. For example, if the first pulse is +24V, the second pulse is -24V, the third is +24V again, and so on.
Non-alternating pulses do not have this reversal.
The majority of clocks use alternating pulses; English movements in particular use non-alternating pulses by default.
Pulse frequency
A pulse driver does one thing: give pulses. But how quickly in succession?
| 60 seconds |
One pulse every full minute |
| 30 seconds |
Two pulses per minute |
| 15 seconds |
Four pulses per minute |
| 1 second * |
60 pulses per minute (seconds clock) |
*) With a switch on the pulse driver, you can also always select one pulse per second, whichever frequency configuration (60/30/15) is set. The manual explains how.
Pulse length
How long does a pulse remain on to send electrical energy through the circuit?
| Configured set |
Selection via DIP switch |
| Small | 50, 100, 150, 300 milliseconds |
| Medium | 150, 200, 250, 300 milliseconds |
| Large | 500, 700, 900, 1000 milliseconds |
| XL | 1200, 1400, 1800, 2000 milliseconds |
| XXL | 5, 6, 7, 8 seconds |
| 3XL | 10, 20, 30, 40 seconds |
Using switches on the pulse generator, one value at a time from the configured set (S to 3XL) can be selected. See the manual for details.
The longer the pulse, the more energy is supplied to move the hands one step. Every clock is slightly different and may require a different pulse length. If the hands are not advanced properly, or not always properly, with every pulse, increase the pulse length.
A shorter pulse length is beneficial for battery life.
Changing the configuration
The basic configuration can be adjusted on the latest generation of pulse generators via the configuration menu.
- For example, need one pulse every 30 seconds instead of one pulse per minute? Follow the step-by-step guide pulse frequency to adjust:
Change pulse frequency base configuration
- Need longer or shorter pulses? Follow the step-by-step guide to set other pulse lengths as well:
Change pulse length base configuration
- Follow the step-by-step guide below to change the polarity (alternation) of the pulses:
Change pulse polarity base configuration
None of the aforementioned configurations fit?
Send us a message! We would be happy to help find a solution for this special clock.