Contax SW 2524, Owner'S Manual, Page: 201 / 322

Menu Item Descriptions
976-0043-01-01 7–29
Figure 7-8 RY7 and RY8 Timing Diagram
The generator auto-stop sequence is initiated if:
1) The time set in 24C Quiet Time Begin h:m has been reached or passed. This setting will disable 2, 3, and 4 start-
scenarios below.
2) If the battery voltage has been held at the 12B Bulk Volts DC setting for the time set in 12H Max Bulk/EQ Timer h:m
or if the voltage has reached the 12F Bulk Done Amps AC setting.
3) If the load amps remains below the 26A Load Start Amps AC setting and remains longer than the period set in
26C Load Stop Delay Minutes .
4) If the time set for the generator to stop in 24B GEN Run Rime Stop h:h is reached.
5) If the time set in 24H RN2/Max Gen Run H:M is reached and 25A RY7 Mode is set to RN2.
The generator manual-stop sequence is initiated if OFF is selected in 02A Generator (OFF AUTO ON) .
The next generator auto-start sequence is initiated.
(RN1 and GS modes will make six attempts to start the generator.
RN2 will only make one attempt to start the generator.)
The Generator auto-start sequence is initiated if:
1) The time set in 24D Quiet Time End has been reached or passed.
2) If the battery voltage remains below the 11C Low Battery Cut Out VDC setting for the required period of time or if below
the 26G Read LBCO 30 Sec Start VDC setting for 30 seconds.
3) If the load amps reaches the 26A Load Start Amps AC setting and remains longer than the period set in 26B Load Start
Delay Minutes .
4) If the time set for the generator to run in 24A GEN Run Time Start h:m is reached.
The manual generator start sequence is initiated if generator is manually turned on via 02A Generator to ON.
The generator will stop immediately (no cooldown period) if an inverter fault is detected or if
OFF is selected in
02A Generator (OFF AUTO ON) .
Time (Sec)
RY8
Relays on GEN START MODULE (GSM)
OFF = relay contact closed from N.C. to COM (relay de-energized)
ON = relay contact closed from N.O. to COM (relay energized)
0 8 18 28 88 100 +100 +220
0
8 18
OFF
ON
ON
OFF
OFF ON ENERGIZED
(COM to N.O. connected)
OFF
OFF
ENERGIZED (COM to N.O. connected)
START
DELAY
PERIOD
8 seconds
FIXED
SET PRE
CRANK
SECONDS
10 seconds
default
SET MAX
CRANK
SECONDS
10 seconds
default
(RY8 goes
off with a 1
second
delay when
AC HOT IN
exceeds
80 Vac
Set Gen
WARM-UP SECONDS
60 seconds
default
(Starts once voltage
exceeds
80 Vac)
GEN RUN PERIOD
(Determined by
generator auto-run
configuration settings
COOL
DOWN
PERIOD
2 minutes
default
(Only used
if AUTO is
selected in
02A
Generator
(OFF AUTO
ON)
Generator
is OFF and
waiting for
next auto-
generator
start
sequence)
START
DELAY
PERIOD
8 seconds
fixed
SET PRE
CRANK
SECONDS
10 seconds
default
OFF
(COM to N.C. connected) DE-ENERGIZED
ON OFF ON
DE-ENERGIZED
(COM to N.C. connected)
Lock on
Good Delay
period
12 seconds
fixed
(Starts
when AC is
within
110 to 130
Vac
(default)
and
53 to 67 Hz)
RY7
RN1
GS
RN2