INNCOM International Inc. 027060TXR 用户手册
M O D E V A R e f e r e n c e M a n u a l
P a g e 7 o f 1 6
5.2.3 Variable baseline frequency
5.2.4 Impulse noise
Caused by backup generators and small power grids.
Caused by switch arcing (loads switching on and off).
5.2.5 RMS voltage changes
5.2.6 Notch and low frequency noise
Caused by heavy load switching.
Caused by elevators and large industrial loads
TRIAC and MOSFET dimmers can withstand certain levels of any one kind of the noises listed above. However, if
any single noise is present at a high magnitude, or multiple noise conditions occur simultaneously, the poor
quality conditions on the line will result in poor quality dimming performance. INNCOM application
engineering, operations, and customer service need to be aware of these property conditions to ensure proper
operation of the MODEVA light dimmers. A site survey that includes the evaluation of the line voltage at each
property must be conducted.
any single noise is present at a high magnitude, or multiple noise conditions occur simultaneously, the poor
quality conditions on the line will result in poor quality dimming performance. INNCOM application
engineering, operations, and customer service need to be aware of these property conditions to ensure proper
operation of the MODEVA light dimmers. A site survey that includes the evaluation of the line voltage at each
property must be conducted.
5.3 Air-Gap Switch
The TRIAC and MOSFET Load Assemblies are equipped with an air gap switch (relay) to ensure that the load is
safely turned off and that there is no leakage current to the fixture during routine lamp maintenance. The air gap
switch engages each time the load is dimmed completely off under normal operation.
safely turned off and that there is no leakage current to the fixture during routine lamp maintenance. The air gap
switch engages each time the load is dimmed completely off under normal operation.
5.4 Overload Protection
If a MOSFET or TRIAC Dimmer is continuously overloaded, a thermal shut down will occur to protect the solid
state circuitry. This thermal shutdown temperature can be configured and monitored with INNCOM
configuration tool such as the PC-501.
state circuitry. This thermal shutdown temperature can be configured and monitored with INNCOM
configuration tool such as the PC-501.
The MOSFET Dimmer is equipped with an additional overload detection circuit that detects a catastrophic
overload / short and shuts down the dimmer to protect the solid state circuitry.
overload / short and shuts down the dimmer to protect the solid state circuitry.