Feedback Modes And Module Types; Roasting Short Protection - ETC Sensor3 CEM3 User Manual

Feedback Modes and Module Types

FDX modules may be set to one of the following module types:
Module Type
NoV-NoI
NoV-I
V-Nol
V-I
To configure the module type see

Roasting Short Protection

FDX3000 features a unique method for providing additional safety in the event of a roasting short. A
roasting short can occur when a dimmer is at a low level and driven into a short circuit load with a long
cable.
Because the dimmer is at a low level, the roasting short does not draw enough current to trip the circuit
breaker. However, a roasting short is still a dangerous condition as currents can flow at a high enough
amperage to cause heat or, in extreme circumstances, fire.
The FDX3000 rack has the capability to detect this condition. When a roasting short is detected by a
module set to V/I mode, the dimmer is automatically driven to full, allowing the high current of the
short circuit to trip the circuit breaker.
This utility is automatically enabled on any modules set to V/I mode.
66
Purpose
Module provides no
monitoring
Module monitors current,
not voltage
Module monitors voltage,
not current
Module monitors both
voltage and current
Menu Structure
FDX 3000
Rack
LIVE
NEUTRAL
Error Messages
No AF Error messages will be produced
No Load messages will be produced if the channel is
turned
Breaker Trip messages will be produced if the channel
is turned on with the breaker turned off.
Both Breaker Trip and No Load messages may be
produced and the roasting short protecting feature
will be enabled.
page 11
on .
Short Circuit
Load
CEM3 User Manual