Rice Lake IQ 700 Configurable Weight Indicator - Manual (Page 46)

42 IQ 700 Installation Manual
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