3
Morrison Bros. Co. ‑ Dubuque, IA ‑ 800‑553‑4840
918AC‑0160 PP
Rev. 09-27-2022
Auto-Timeout Output Function
The Auto-Timeout relay output function allows each relay output to be reset to its normal condition after a
configurable amount of time. The Timeout value can be adjusted in 3 minute increments from 3 to 30 minutes
using the rotary switch. The timeout value is calculated using the following formula:
Timeout (minutes)
= (
n
+ 1)
x
3
The value of
n
in the formula is set using the rotary switch. For example, a value of 0 will set the Auto-Timeout
to 3 minutes and a value of 2 will set the Auto-Timeout to 9 minutes.
NOTE:
The Auto-Timeout function can be used with the Non-Persistent function (see page 2). However, the
relay output Latching Mode (see page 4) takes precedence over the Auto-Timeout function.
Figure 3 - Auto-Timeout Relay Output Configuration
1. Locate the rotary switch, Timeout Value, SW 4, on the expansion board mezzanine (see Figure 3).
2. Use a small screwdriver to turn the rotary dial to the desired auto-timeout value. A value of “0” corresponds
to a 3 minute timeout value. The timeout value will start at 3 minutes (position “0” of the dial) and increase
by 3 minutes for each count of the rotary dial, up to the maximum timeout of 30 minutes (position “9” of the
dial).
NOTE:
The auto-timeout value is applied to all outputs with the auto-timeout setting enabled. Different values
cannot be set for individual outputs.
3. Locate the four position, Auto-Timeout switch, SW 2 on the Motherboard (see Figure 3).
4. Place the DIP switch Position One in the “ON” position to configure the Motherboard to reset the channel
1 relay output when the auto-timeout timer has expired. Place the DIP switch Position One in the “OFF”
position to prevent the auto-timeout timer from changing the state of the channel 1 relay output.
