Laurel Electronics LTM CTR SERIES PULSE, AC or PROCESS TOTALIZER INPUT, SERIAL DATA OUTPUT - Manual (Page 7)

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P6 - SIGNAL INPUT DETAIL
Excitation return 1
+ Excitation 2
- Signal input 3
+ Signal input 4
2-Wire Process Transmitter
+
-
Excitation return 1
+ Excitation 2
- Signal input 3
+ Signal input 4
DC & Externally Powered Process
-DC
+DC
Excitation return 1
+ Excitation 2
+B Signal Input 3
Signal Ground 4
+A Signal Input 5
Signal Ground 6
Sensor 1
Power to sensor
+
-
DUAL CHANNEL PULSE SIGNAL INPUT .. PROCESS / TOTALIZER SIGNAL INPUT
Excitation return 1
+ Excitation 2
+B Signal Input 3
Signal Ground 4
+A Signal Input 5
Signal Ground 6
Sensor 1
Sensor 2
Power to sensor
+
+
-
-
Single Powered Sensor Input
Two Powered Sensor Inputs
Excitation return 1
+ Excitation 2
+B Signal Input 3
Signal Ground 4
+A Signal Input 5
Signal Ground 6
Active and Passive Inputs
A Input 1
A Input 2
B Input 3
B Input 4
Z Input (+Excitation) 5
Z Input (Exc. return) 6
QUADRATURE SIGNAL INPUTS
Differential or Complementary Inputs
A Channel In
B Channel In
Zero Index In or
Excitation Output
A Input 1
+Excitation 2
B Input 3
Excitation return 4
Z Input 5
Signal Ground 6
Single Ended Inputs
A Channel In
B Channel In
Zero Index In
+ Power Output
- Power Output
Sensor common
P4 - ANALOG OUTPUT DETAIL
Driving a Load with 4-20 mA
Analog return 1
4-20 mA output 2
500 Ohms max
Driving a Load with 0-10V
Analog GND 1
0-10V output 2
5 kOhms min
MOUNTING FOR COOLING
AL 1
AL 2
RESET
POWER
AL 1
AL 2
RESET
POWER
AL 1
AL 2
RESET
POWER
AL 1
AL 2
RESET
POWER
AL 1
AL 2
RESET
POWER
Mount transmitters with ventilation holes at
top and bottom. Leave minimum of 6 mm (1/4")
between transmitters, or force air with a fan.
Inputs can be proximity switches, contact closures,
digital logic, magnetic pickups, or AC inputs to 250V .
Warning: Dual-channel signal grounds 4 & 6 are
connected internally.