Table of Contents
Advertisement
CHPA SERIES
Table 3-3. RF Switch Pin Assignment (J5)
Pin #
Signal Name
1
Low RF NC
2
Low RF Common
3
Low RF NO
4
Fault NC
5
Fault Common
6
Fault NO
7
Not used
8
Not used
9
Sum Fault NC
10
Sum Fault Common
11
Sum Fault NO
12
Not used
13
Not used
14
RF Inhibit
15
RF Inhibit Return
Table 3-3 Notes:
1.
Outputs are dry relay contacts rated up to 50 VDC, 50 mA and are connected in fail-safe mode.
2.
The RF Inhibit requires a maintained closed-contact with RF Inhibit return and an open circuit for RF Inhibit. For this reason, a
jumper connector is installed and shipped with the unit. When the CHPA is used in a switching system, this jumper is not
required. This RF Inhibit command is executed regardless of the current control mode.
3.5 External Interlocks Interface
The External Interlocks Interface allows the user to connect the CHPA to external safety
interlocks; this interface features two signals: External Interlock Non-Latching and External
Interlock Latching. External Interlock Non-Latching is RF Inhibit; this command is always
executed. External Interlock Latching is a user-induced fault and, unlike other faults, is not
recycled. These commands are executed by opening the command pin from its return.
3-6
Remarks
Relay NC 1 (Normally closed when coil is de-energized; closed to pin 2
during Low RF Alarm or the Fault state.)
Relay Common 1
Relay NO 1 (Normally open when coil is de-energized; open from pin 2
during Low RF Alarm or the Fault state.)
Relay NC 2 (Normally closed when coil is de-energized; closed to pin 5
during the Fault state or whatever condition chosen for this relay.)
Relay Common 2
Relay NO 2 (Normally open when coil is de-energized; open from pin 5
during the Fault state or whatever condition chosen for this relay.)
Relay NC 3 (Normally closed when coil is de-energized; closed to pin
10 when the CHPA is latched into the Fault state.)
Relay Common 3
Relay NO 3 (Normally open when coil is de-energized; open from pin
10 when the CHPA is latched into the Fault state.)
Closed to pin 15 for "No RF Inhibit."
Input Return
THIS DOCUMENT IS THE PROPERTY OF COMMUNICATIONS & POWER INDUSTRIES.
REPRODUCTION OR RELEASE WITHOUT EXPRESS PERMISSION IS STRICTLY PROHIBITED
D
.01023245 R
.L
OC
EV
Advertisement
Table of Contents
