Table A- 10
Open Collector User Resistor Recommendations
User Supply
Voltage (V DC)
5
9
12
18
24
28
36
Note
TB2-9 and TB2-11 are Open Collector Outputs that require external pull-up resistors for
operation. See table for External Supply Voltage and suggested resistor value and ratings.
Maximum current into the transistor is 100mA. Maximum Voltage is +36 V DC.
Negative voltages with respect to ground will permanently damage transistors.
Table A- 11
Input/Output Wiring (TB3) - 7ME39400AL04 Expanded I/O Module
Pin#
Signal
1
K1 A
2
K1 B
3
K1 C
4
GND
5
K2 A
6
K2 B
7
K2 C
8
K3 A
9
K3 B
10
K3 C
11
GND
12
K4 A
13
K4 B
14
K4 C
FUS1010 IP65 NEMA 4X
Operating Instructions, 7/2010, A5E03086486-02
External Resistor
(Ohms)
270
510
680
1000
1500
1800
2400
CAUTION
Definition
Relay 1 Normally Open
Relay 1 Normally Closed
(7ME39400AL04 only)
Relay 1 Common
Digital Return (GND)
Relay 2 Normally Open
Relay 2 Normally Closed
(7ME39400AL04 only)
Relay 2 Common
Relay 3 Normally Open
Relay 3 Normally Closed
(7ME39400AL04 only)
Relay 3 Common
Digital Return (GND)
Relay 4 Normally Open
Relay 4 Normally Closed
(7ME39400AL04 only)
Relay 4 Common
Expected
Current Draw (mA)
18.5
17.6
17.6
18
16
15.5
15
Description
Function
Dual Path Only
Relay 1
Alarm or control
functions set by
CH 3.
DGND
Relay 2
Alarm or control
functions set by
CH 3.
Relay 3
Alarm or control
functions set by
CH 3.
DGND
Relay 4
Alarm or control
functions set by
CH 3.
Appendix A
Recommended Resistor
Wattage (Watts)
1/2
1/2
1/2
3/4
1
1 1/4
1 1/4
Function
Quad Path Only
Alarm or control
functions set by CH 5.
Alarm or control
functions set by CH 5.
Alarm or control
functions set by CH 5.
Alarm or control
functions set by CH 5.
55