22
Rev G
S4−
−−
−TR400 Set-
N S N S N S N
S
Direction of Signal
T R400 RATEMETER
1 5 0 0
REV PROG
OUT
1
KEY
ERR
OUT
2
REV
DIAG
VAR
ENTER
N
N
N
N
N
N
N
N
S
S
S
S
S
S
S
S
TR400 set-up parameters
Set-up
parameters
The TR400 comes from the factory set for NPN open-collector operation. In most
applications, when using a standard Hall-Effect sensor with the model 255 disc, only
a few variables need to be programmed. For example, RPM (Revolutions Per
Minute) and PPR (Pulses Per Revolution):
• If your operation involves relays requiring the reading of RPM, variable 01,
Max RPM and variable 03, Display Units should be set to the same value.
• If you are using a 255 disc or standard wrap, variable 02 should be the default
value of 8 PPR.
A typical shaft monitoring scenario for the TR400 is shown in Figure 10.
Figure 10: TR400 Monitoring Shaft Speed
Set-point and
relay output
values
In some applications, the set point will be 90 to 95 percent of full operating speed for
safety reasons. Consider the following variables when setting relay outputs:
Set points, delay and on-times, and output function selection; for example:
• Variables 07, 10, 36, 39, 43, 46, 50, and 53: outputs 1 through 8 respectively,
hold the set point value.
• Variables 08, 09, 11, 12, 37, 38, 40, 41, 44, 45, 47, 48, 51, 52, 54, and 55:
delay and on-time values should be set to one (1) second (default), which will
meet most requirements.
• Variable 13, 42, 49, and 56: output function selection is where the operation of
relays 1 through 8 is defined, which is usually an underspeed condition.
Rotating
Pulser Disc
Sensor
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