Synrad Novanta OEM ti Series, User Manual

Page: 48 / 106

OPERATING MODES PAGE | 48
Important Note: NOVANTA lasers are designed for maximum performance using a 95% duty
cycle. Increasing the maximum PWM percentage beyond 95% greatly increases the laser’s heat
load with little or no corresponding increase in laser output power
.
Figure 4-5 Representative ti-Series optical output pulse.
Warning: Serious Personal Injury
The UC-2000’s default gate logic is factory set to internal Pull-Up (normally on) mode so that an
open (disconnected) Gate input causes the laser to turn on. This functionality allows the user to easily
test and verify laser operation prior to integration. In an integrated system, you should configure the
UC-2000’s gate input.
This prevents the beam from being enabled unless a high level (+3.5 V to +5.0 VDC) signal is applied
to the Gate input connector. In the Pull-Down (normally off) mode an asserted logic low signal, short
circuit to ground, or an open or disconnected Gate inputs locks the beam off.