Mtl5532 - Pulse Isolator - Eaton Crouse-Hinds MTL5500 Series Instruction Manual

6 .3 .2
Pulse & 4/20mA current outputs
The MTL5532 isolates pulses from a switch, proximity detector, current pulse transmitter
or voltage pulse transmitter located in a hazardous area. It is ideal for applications involving
high pulse rates and fast response times, by repeating the pulses into the safe area, and the
transistors used on the pulse output will switch +ve or –ve polarity signals.
It may be used immediately in simple or legacy mode, or it may be software configured for more
specific applications - see next page for either option. With configuration, an analogue output
proportional to frequency is available, together with a relay output, which may act as an alarm.
Note: For reliable, long-term operation the load on the output switching relay should not be less
than 50mW, e.g.10mA at 5VDC.
O/P
CONFIG
MTL5532
STS
PWR
Figure 6 .18:
Top label
for MTL5532
Switches located on the edge of the module define the mode of operation.
Vsp
3V
6V
12V
38

MTL5532 - Pulse Isolator

Hazardous area
5
Current
pulse
3
V Inhibit
4/20
mA
1
1
Voltage
4
pulse
Pulse
3
3-wire
4/20
current
mA
pulse
1
5
2-wire
4
current
3-wire
pulse
voltage
4/20
pulse
mA
1
Terminal Function
1 Common input –ve
2 Switch/proximity input +ve
3 Current pulse input +ve
4 Transmitter supply +ve
5 Voltage pulse input +ve
6 Inhibit input +ve
7 Alarm output
8 Current output –ve
9 Current output +ve
10 Alarm output
11 Pulse output –ve
12 Pulse output +ve
13 Supply –ve
14 Supply +ve
1 2 3 4
OFF position
ON position
SW1 SW2
ON ON
ON OFF
OFF OFF
Safe area
Configuration
socket
+
6
5
4
10
3
+
11
2
12
1
–
13
4
14
3
SW1 SW2
Vsp Vsp
LFD SW3
OFF OFF
ON ON
4/20mA
–
7
Load
8
+
9
Alarm
–
Pulse
+
Vs–
Vs+
20 to 35V dc
SW3 SW4
LFD Mode
INM 5500 Rev 11