Rev. B – 09/18/03
Operating Instructions
LMA-1200 “
DEFLECTOMETER” Series
Single Channel – Dual Output – Inductive Loop Vehicle Detectors
1.
Connect to proper source voltage
Verify source voltage before applying power. The “Pin Assignment” side label indicates the input power required for each model and indicates either Fail Safe operation
or Fail Secure operation.
MODELS
12 VDC to 24 VDC or 24 VAC
120 VAC
240 VAC
Fail Safe
Fail Secure
LMA-1200-LV
●
●
LMA-1200-120
●
●
LMA-1200-240
●
●
LMA-1200S-LV
●
●
LMA-1200S-120
●
●
LMA-1200S-240
●
●
FAIL SAFE OPERATION
FAIL SECURE OPERATION
OUTPUT RELAY
POWER FAILURE
LOOP FAILURE
POWER FAILURE
LOOP FAILURE
A
CALL Output
CALL Output
No Output
No Output
B
No Output
No Output
No Output
No Output
2.
DEFLECTOMETER
Indications
STATUS
DEFLECTOMETER
0, 1, 2, 3,
4, 5, 6
, 7, 8, 9
Sensitivity Meter (4,
5
& 6 = Optimum Sensitivity Setting for Loop & Lead-in Network)
d
2-Second
D
elay Timing
E
0, 2, 5 or 10 Second
E
xtension Timing
F
Current “Real Time” Loop
F
ailure
3.
LED Indications
STATUS
POWER LED
OUTPUT A LED
OUTPUT B LED
LOOP FAULT LED
OFF
No Power
Output OFF
Output OFF
Loop Good
ON
Normal Power
Output ON
Output ON
N/A
2 Hz Flash
N/A
2-Second Delay Timing
2-Second Delay Timing
N/A
4 Hz Flash
N/A
0, 2, 5, or 10 Second
Extension Timing
0, 2, 5, or 10 Second
Extension Timing
N/A
1 Flash
Insufficient Line
Power
“Real Time” Open Loop
“Real Time” Open Loop
“Real Time” Open Loop if Outputs A & B are flashing.
“Prior” Open Loop if Outputs A & B are not flashing.
2 Flashes
N/A
“Real Time” Shorted Loop
“Real Time” Shorted Loop
“Real Time” Shorted Loop if Outputs A & B are flashing.
“Prior” Shorted Loop if Outputs A & B are not flashing.
3 Flashes
N/A
“Real Time” 25% Inductance
Change
“Real Time” 25% Inductance
Change
“Real Time” 25% Change In Inductance if Outputs A & B are flashing.
“Prior” 25% Change In Inductance if Outputs A & B are not flashing.
4.
Rear Panel DIP Switches and Rotary Switch
2-Position DIP Switch – Loop Frequency
SWITCH
LO
MEDIUM – LO
MEDIUM – HIGH
HIGH
FACTORY DEFAULT
1
ON OFF ON OFF OFF
2
ON ON OFF OFF OFF
Loop Frequency (DIPS 1 & 2)
is controlled by the rear panel 2-Position DIP switch. On occasion, loops are placed in close proximity; it is necessary to select a different
frequency level for each loop to avoid loop interference (crosstalk). Four (4) frequencies are selectable, HIGH being the factory default. Press reset after changing sensitivity
setting.
8-Position DIP Switch - Detector Parameter Options
SWITCH ON
OFF
FACTORY
DEFAULT
1
Sensitivity Boost
No Sensitivity Boost
OFF
2
Output A – Limited Presence
Output A – Infinite Presence
OFF
3
2-Second Delay Timing
No 2-Second Delay Timing
OFF
4
OFF
5
See “Extension Timing” Table Below (Switches 4 & 5)
OFF
6
OFF
7
See “Output B Relay Configurations” Table Below (Switches 6 & 7)
OFF
8 Reserved
N/A
Extension Timing (Switches 4 & 5)
SWITCH
0-Seconds 2-Seconds 5-Seconds 10-Seconds
4 0FF
ON
OFF
ON
5 0FF
OFF
ON
ON
Output “B” Relay Configurations (Switches 6 & 7)
SWITCH
Pulse On Entry
Pulse On Exit
Presence (Duplicates Output A)
Fault Output
6 0FF
OFF
ON
ON
7 0FF
ON
OFF
ON
