Rockwell Automation 1440-PK02-05M2 XM-720 Machine Monitor - Manual (Page 35)

Publication GMSI10-UM001C-EN-E - June 2011
Installing the XM-720 Machine Monitor 35
Reset Switch
The XM-720 front panel has an external reset switch located above the LED
indicators (see Figure 2.18). The switch can be used to reset all latched relays
and LEDs on the front panel of the XM-720 monitor. To reset the relays and
LED indicators, press and release the Reset button.
Removing the XM-720
Terminal Blocks The XM-720 monitor has two removable terminal blocks (RTB) on the back
panel.
Removing the XM-720 Terminal Blocks
Module
Fault Off Normal condition
On
• A hardware or firmware failure is preventing proper
operation of the device.
• Relay #1 is not configured to be failsafe. Typically
this occurs on new installations, in which the
XM-720 has not been configured. Refer to Chapter 3
on page 37 for information on how to configure the
XM-720.
Xdcr Fault Off Normal condition
On The transducer DC bias in either channel is
out-of-range.
IMPORTANT
The Reset switch resets the relays only if the input is no
longer in alarm or the condition that caused the alarm is no
longer present.
TIP
In the provided configuration files, the XM-720 relays are
configured to be latching relays. This means the relays stay
activated even when the condition that caused the alarm
has ended.
Table 2.D LED Description
LED State Indicates
WARNING
When you connect or disconnect the RTB with field side
power, an electrical arc can occur. This could cause an
explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous
before proceeding.