DeLUX MOISTURE Link G2 DP, Руководство по эксплуатации

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Function
Any MicroM chassis type with the appropriate plug-in board installed provides remote reset capabil-
ities in the event of a lockout condition. A remote reset switch consists of a dry contact such as a
remote momentary push-button wired to the two (2) terminals located on the plug-in board as shown
in Figure 5. The reset switch will also force the MicroM to recycle if depressed and released during
the purge or run period.
A plug-in board (MED8) is pre-installed in the MEC320TS chassis to provide local reset, remote
alpha-numeric display, serial communications and normally closed relays.
FIGURE 5.
REMOTE RESET
ADVANCED RESET FUNCTIONS
Multiple functions have been integrated into the reset push button located on the MicroM and pro-
vided by way of the remote reset terminals. Among these are reset/recycle, reset from lockout only,
recycle only and set unit address.
The functions of the switch is determined by the length of time
the push button is depressed and released.
The MicroM allows the connection of the remote resets to be connected together, usually in a multi-
burner system where multiple MicroM’s are mounted in a common panel. The reset push button
located on the MicroM daughter board is in parallel with the remote reset terminals when provided
by the other MED daughter boards.
Normal Operation
If the push button is depressed and released for greater than 1/2 second but less than 3 seconds, the
MicroM will either reset if in lockout, or shutdown and revert back to the start of the cycle. If the
MicroM is in the Idle state, this action will cause the LED’s to sequence from the bottom to top and
serves as a LED test.
Smart Reset
If the push button is depressed and released greater than 3 seconds but less than 5 seconds, the
SERIAL COMMUNICATIONS
A
B
REMOTE DISPLAY
RJ45 JACK
REMOTE RESET
(RS485)
(+)
(-)
SERIAL COMMUNICATIONS
REMOTE DISPLAY
RJ45 JACK
RELAY CONTACTS
(RS485)
B
A
MED8 - Normally Closed
MED9 - Normally Open
(used only with MEP696/MEP697)
CAUTION: Remote reset is recommended only on a control solely for proved ignition pro-
gramming (pilot ignited burner) or a control for use only with applications in which
unburned fuel cannot accumulate and that is intended for installation in inaccessible loca-
tions such as open-flame, ceiling-suspended gas heaters. The remote reset location must be
within sight and sound of the fired equipment.