2 relay output/input board (kjn8924–) – Rice Lake Condec UMC600 User Manual
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Options Configuration
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4.12.2
Relay Output/Input Board (KJN8924–)
The relay output board KJN8924– is a dual function circuit board that contains both an analog output section (0 –
10VDC or 4 – 20mA) and a relay output/input section with four solid state relays and four solid state input relays.
Additional features of KJN8924– include:
•
Power up reset protection – all relays are held off until the CPU re-establishes proper operating conditions
caused by power interruptions.
•
Watchdog circuitry – a hardware timer is provided to automatically turn off all relays if the instrument is
not running.
•
Solid state optically isolated relays – rated 20VAC to 120VAC, 5mA to 1 Amp
•
Outputs and inputs are provided with terminal strip connections.
Table 4-22 shows the setpoint relay output/input wiring
Table 4-22. Setpoint Relay Option Output/Input Wiring
The following table shows the relay output wiring for KJN8924.
Table 4-23. KJN8924 Relay Output Wiring
Outputs
Inputs
Terminal Block
Function
Terminal Block
Function
TB2 - 1
Out 1
TB3 - 6
IN 2
TB2 - 2
Out 2
TB3 - 5
IN 3
TB2 - 3
Out 3
TB3 - 4
IN 4
TB2 - 4
Out 4
TB3 - 3
IN 5
TB2 - 5
AC Common
TB3 - 1 & 2
TB5 - 4
Output Mode
TB2
Output
A
B
C
D
E
F
G
1
1
Setpoint 1
Setpoint 1
with preact
Setpoint 1
Setpoint 1
with preact
Setpoint 1
with preact
Low
Low
2
2
Setpoint 1
(dribble)
Setpoint 1
(dribble)
Setpoint 1
(dribble)
Accept
Accept
3
3
Setpoint 2
Setpoint 2
with preact
Setpoint 2
with preact
Setpoint 2
with preact
Tolerance
High
High
4
4
Zero band
Zero band
Setpoint 2
(dribble)
Setpoint 2
(dribble)
Zero band
Zero band
Zero band