T I M E R S A N D M O D E S E L E C T I O N S S 1 & S 2; Fast Run Timer - Switch Pack S1 (1-5); Mode Selections - Switch Pack S1 (6-8); Close Timer - Switch Pack S2 (1-5) - Chamberlain MEGA SWING Owner's Service Manual

1/2 hp commercial duty swing gate operator
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T I M E R S A N D M O D E S E L E C T I O N S S 1 & S 2

FAST RUN TIMER - SWITCH PACK S1 (1-5)

To change the FAST SPEED run timer, set the dip switches to add
up to the number of seconds it takes for the swing gate to make a
full open or closed cycle minus 1 second.
Example: If cycle is 15 seconds, then set dip switches to add up to
14 seconds (dips 2,3,4 are on) which is 2 seconds + 4 seconds + 8
seconds = 14 seconds. Setting FULL SPEED to end before the end
of travel will allow the gate to go to the slow speed before
stopping.
Verify that the FAST SPEED run timer setting slowed down the gate
approximately one foot from the end of travel. If it does not, adjust
the dip switches appropriately.

MODE SELECTIONS - SWITCH PACK S1 (6-8)

SWITCH 6: FAIL SECURE MODE, (VER 6.351 or higher) with ac
power off, in continuous battery back up mode (S2 #8 off) gate
will not auto open if batteries get low. If batteries are low, gate
will stay open after an open command is given.
SWITCH 7: No longer used as of August 16, 2003. To be
redefined.
SWITCH 8: Not used at this time (VER 6.34 or higher only).

CLOSE TIMER - SWITCH PACK S2 (1-5)

On the MEGA SWING UL the switches 1-5 on S2 are for the
closing timer delay. If S2-7 is on, the gate will auto close by timer.
Default is S2-3 "on" to provide a 4 second delay if activated.

MODE SELECTIONS - SWITCH PACK S2 (6-8)

SWITCH 6: Sets auxiliary open input terminal #4 at J5 to be
pulse open--pulse close (example: residential applications).
SWITCH 7 - AUTO CLOSE TIMER: Default is OFF. When on, use
S2 1-5 to set close time delay.
When close timer is selected, YOU must install vehicle and
pedestrian detection devices. It is strongly recommended that
photo electric beams (eyes) be installed on BOTH sides of the
swing gate to reduce the possibility of injury to persons that may
attempt to walk through gate opening. Along with the beams, it
is strongly recommended that pressure sensing edges be
installed on the leading edge of the gate panel, and any area that
presents a PINCH POINT or risk of ENTRAPMENT.
SWITCH 8 - AUTO OPEN ON POWER FAILURE: When switch
number 8 is in the ON position, the operator will automatically
open the gate approximately 15 seconds after the loss of power.
Once power is restored, the operator will resume normal
operation.
Seconds - -
1 - -
2 - -
4 - -
S1
ON
ON
OFF
OFF
1 2 3 4 5 6 7 8
Fast Run Timer 1-5
1
1
J2
AUX LIMITS
M/S
J3
D8
D1Ø
S1
S2
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
R1
R12
U4
C2
U1
OLS
D7
OPEN
X1
R1Ø
D6
R9
BRAKE
R8
D5
CLOSE
D4
R7
CLS
D3
R6
IRD
U3
D2
R5
U2
R4
R19
R3
Q1
D9
D1
R2
R11
HBEAT
BAT LO AC POWER
K1
D11
D12
J4
U19
Aux Relay
J1
C NC NO
DC
1
1
ACC+
PWR
1 - -
2 - -
4 - -
Seconds - -
S2
ON
ON
OFF
OFF
1
2 3 4 5 6 7 8
Close Timer 1-5
13
8 - -
16
ON
OFF
OFF
OFF
OFF
Mode Selection 6-8
1
2
3
4
5
6
7
8
9
1Ø 11 12
MANUAL
J5
OPEN
Q2
R14
S3
T2
T4
T6
T8
R18
T1
T3
T5
T7
R17
OPEN 1
OPEN 2 OPEN 3
AUX 4 SAFETY 5CLOSE 6 BACK 7SHADOW 8
CLOSE
R16
C16
R21
R24
R35
R41
R46
R5Ø
R61
C3
U8
U9
U11
U13
U14
U15
R23
R34
R4Ø
R45
R49
R6Ø
R22
R33
R39
R44
R48
R59
R43
R43
R26
U6
R63
D21
IRD1
R25
R58
C12
U5
U12
U7
DX3
U1Ø
DX4
R57
C13
R56
C4
DX2
R38
CPU
JP2
R37
R51
F2
R55
D2Ø
1A DC
R2Ø
C8
WARNING FOR
R62
+
C2Ø
CONTINUOUS
F1
C5
+
PROTECTION
AGAINST FIRE
DX1
REPLACE ONLY
+
F4
WITH THE SAME
B1
TYPE AND RATING
OF FUSE
F3
D14
R13
MOTOR
BAT–
MOV
TR
ACC–
BAT–
BAT+
24VAC XFMR
MOTOR
8 - -
16
OFF
OFF
OFF
OFF
OFF
Mode Selection 6-8
Shows
Default
Settings
U16
Shows
Default
Settings

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