AXIOMATIC AX180800, User Manual

Page: 23 / 72

UMAX180800, 20 Thermocouple, 2 RTD, 4 Inputs, 6 Relays Dual CAN Controller Version 1 Page: 23-71
coefficient set. Editable, if
the coefficient
set is “User
Defined”.
Callendar
– Van
Dusen coefficient
B
-5.77500 -100
…100 –
Callendar
– Van Dusen
coefficient B for the
selected standard
coefficient set. Editable,
if the coefficient set is
“User Defined”.
Callendar
– Van
Dusen coefficient
C
-4.183010 -10
0…100 –
Callendar
– Van Dusen
coefficient C for the
selected standard
coefficient set. Editable,
if the coefficient set is
“User Defined”.
If these values need to be changed, the user can change them via EA or Modbus.
3.5.2 Warning and Shutdown Limits
The AX180800 has High and Low Limits for all types of output: °C, mV, and Raw Data. Also,
there is High and Low Shutdown Limit for Shutdown Temperature Fault Diagnostics. Even
though only temperature reading is used for the diagnostics, the customer can use the voltage
and raw data reading as control sources (See Table 5). The user can set the value for limits
via EA or Modbus. The default setpoints can be found in Section 4.3.2.
3.6 Relay Output Function Block
The following sub-sections will explain in more detail the functionalities and available
setpoints/parameters.
3.6.1 Relay Output Functionality
The relay output has 2 states: Normally Open and Normally Closed. It has 3 pins associated
with it: Normally Closed (NC), Normally Open (NO), and Common (C). The
“Relay Output
Type”
parameter allows for flexibility in the response of the output. Table 17 shows the options
available for this parameter.
Table 17. Relay Output Types
Value Meaning
0 Relay Disabled
1 Normal Logic
1 Inverse Logic
2 Latched Logic
3 Inverse Latched Logic
4 Toggle Logic