Flex EM/EX HazLoc System Instruction Manual
June 2019
Page 48 of 62
6 Receiver Installation
6.1 Flex 12EM Output Relay Contact Diagram
•
The Flex 8EM will not have pushbuttons 9 - 12 (relays K9 - K12; wires 19 - 23).
•
For F9 and F10 power fuse ratings,
see Section 4.2.7 on page 46
.
•
For 12 - 24VDC power supply, wire #1 corresponds to the negative charge (-) and wire #3
corresponds to the positive charge (+). Wire #2 is for GROUND.
•
Wire #6 is for “Normal Close” and wire #8 is for “Normal Open” MAIN output.
•
Due to the possibility of voltage spikes on the contactors, suppressors are required on contactors
being driven by Flex relays.
4
5
COM 7
FUNC
K26
7
COM 8
F8(5A)
6
K27(NC)
MAIN
8
MAIN
K27(NO)
MAIN Function
炾
Power
Transformer
1
2
3
F10
F9
Power
9
10
11
12
13
COM 1
PB1
PB2
PB3
PB4
F1(5A)
K1
K2
K3
K4
Pushbutton 1~4
14
15
16
17
COM 2
PB5
PB6
PB7
F2(5A)
K7
K6
K5
18
PB8
K8
Pushbutton 5~8
19
20
21
22
COM 3
PB9
PB10
PB11
F3(5A)
K11
K10
K9
23
PB12
K12
Pushbutton 9~12