TREND NX Variable Speed Drives - Manual (Page 12)

Installation on a Trend System
Knobs
Knob Label ($)
Units
(%) Top Limit
(T) Bottom Limit
(B)
Description
1 Demand % 100 0 Defines required speed in
terms of percentage of
frequency range between
minimum and maximum
frequency (S8 to S9)
2* Failure
Demand - 0 0 Defines required speed if
the watchdog strategy
detects that the demand
value has not been
received.
Switches
Switch Label ($) Description
1 Command Signal I switches motor on, O switches motor off
2 Fault Reset Set to I to reset the fault
3* Watchdog Starts the timer in the watchdog strategy when
set to 1, when set to 0 timer is reset. If watchdog
strategy is being used this must be set to 0 at a
regular interval less than the on delay set in
watchdog strategy (default 600s).
4* Watchdog Enable Enables/disables the watchdog strategy.
1=enabled, 0=disabled.
5* Fail Run Mode The run mode used (i.e. motor on/off) if the
watchdog strategy detects that the command
signal has not been received.
* These parameters are used by the watchdog strategy only available in NXIP
Note that the Knobs and Switches provide control of the motor from the network
(e.g. from a controller by IC Comms).
Display and Directory Modules: (e.g. for use by NDP)
Directory Label Display Item Label Units
1 Operation S3 O-P Frequency Hz
S4 O-P Current Amps
S2 O-P Power kW kW
I2 Motor Available
I3 Fault Status
2 S17 Active Fault
W2 Fault Reset
I8 Preset 1 Select
I9 Preset 2 Select
10 NX Variable Speed Drives Installation Manual TG200434 Issue 3/A 04/07/2006