USER INTERFACE
This section is designed to give the user overall information on all
features and components pertaining to the CHECKFIRE MP-N
Control Module itself.
FIELD TERMINATIONS
Terminals 1 and 2 – Not Used
Terminals 3 and 4 – Detection Input Initiating Circuit No. 1
• Cable must be round jacketed, with an O.D. of 0.13 in. to 0.25
in., suitable for the intended usage
• Polarity need not be considered
Terminals 5 and 6 – Initiating Input Circuit No. 2
• Can be set up as either an initiating input circuit to cause a
release output or pressure switch feedback input
• When set up for pressure switch feedback input, operation does
not discharge system
• Polarity need not be considered
• Cable must be round jacketed, with an O.D. of 0.13 to 0.25 in.,
suitable for the intended usage
Terminals 7 and 8 – Release Circuit
• Polarity must be considered – Terminal No. 7 (+), Terminal No.
8 (–)
• 15 ft. maximum cable length between control module and pneu-
matic actuator
• Cable must be round jacketed, with an O.D. of 0.13 to 0.25 in.,
suitable for the intended usage
Terminals 9, 10, 11, 12 and 13 – Not Used
Terminals 14, 15, 16 – Shut Down Relay
• Cable must be round jacketed, with an O.D. of 0.13 in. to 0.25
in., suitable for the intended usage
• 3 amp maximum load
• Relay specification: 4A 250VAC, 3A 30VDC resistive
• Normally open, normally closed set of contacts
• Form “C” contact arrangement
• Contacts shown in normal condition – No. 14 (N.O.), No. 15
(Common), No. 16 (N.C.)
Terminal Block (see Figure 16)
• Terminal connections are sized for 12 - 24 AWG
• Terminal is labeled from left to right, No. 1 through No. 16
• The terminals are designed as follows:
1.
Not Used
2.
Not Used
3.
+ Detection Input
4.
– Detection Input
5.
Initiating Input Circuit No. 2 (+)
6.
Initiating Input Circuit No. 2 (–)
7.
+ Release Output
8.
– Release Output
9.
Not Used
10.
Not Used
11.
Not Used
12.
Not Used
13.
Not Used
14.
Shutdown N.O.
15.
Shutdown Common
16.
Shutdown N.C.
FIGURE 16
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USER INTERFACE
2012-MAY-18 REV. 02 PAGE 7
CHECKFIRE MP-N Electric
Detection and Actuation System Manual
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
+
–
+
–
+
–
NO
C
NC
