CIP-2 - Hallikainen.org

INSTRUCTION l1ANUAL
MODEL CIP-2
COMMAND INTERFACE PANEL
MOSELEY ASSOCIATES, INC.
Santa Barbara Research Park
111 Castilian Drive
Goleta, California 93017
March 1980
(805) 968-9621

CIP-2 COMt-IANO INTERFACE PANEL
Schematic 91C7184
Assembly 2102681
Component Layout 2002756
I. PURPOSE
The CIP-2 Command Interface Panel is designed to provide a
simple control interface for use with the Moseley MRC-l
Microprocessor-Based Remote Control System. When used in
conjunction with an Open Collector or an Optically-Isolated
Output Board, up to sixteen control rel~ys may be operated
in a single Command Interface Panel. Both normally-open and
normally-closed relay contacts are available at each relay
position. Unregulated OC power is also available at the
spare power terminals for user convenience.
II.
SPECIFICATIONS
The CIP-2 Command Interface Panel is designed to operate in
conjunction with the MRC-l Open Collector Output Board,
20C2755-1, or the Optically-Isolated Output Board, 20B2705.
WARNING: Improper operation will result if the CIP-2 is used
in conjunction with the Modified Open Collector Output Board,
20C2755-2.
Outputs
Number of Contacts
Up to sixteen normally-open or
normally-closed relay contacts
CIP-2 Command Interface Panel (9lC7l84)
7 March 1980
-1-

Termination
Initial Contact
Resistance
Contact Rating
(Resistive Load)
Contact Rating
(Inducti ve Load)
Maximum Operating Speed
Operate Time
Release Time
Spare Power Output
Voltage
Spare Power Output
·Current
Wire-clamp barrier terminal blocks
100 milliohm maximum
SA @ 125 VAC, 250 VAC or 30 VDC
1/10 hp @ 125 VAC or 250 VAC
50 c/s
Approximately 10 ms
Approximately 5 ms
+28V unregulated
25 rnA to 281 rnA depending on the
number of relays installed in
the CIP-2.
CAUTION: See Section IV, INSTAL­
LATION, in this manual for limitations
on current demands above
25 rnA.
Inputs
Number of Inputs
Termination
Drive Requirements
Power Requirements
Operational Temperature
Range
16 active lines and 16 ground
returns
37-pin "D" connector
An NPN open collector (or switch
to ground) able to withstand
+35V open circuit voltage and
22 rnA short circuit current for
each relay. These drive requirements
are met when the CIP-2 is
driven by the Open Collector
Output Board, 20C2755-1, or the
Optically-Isolated Output Board,
20B270S.
120 VAC or 240 VAC ±lO%
O°C to +50 Q C
CIP-2 Command Interface Panel (91C7184)
7 March 1980
-2-

III.
UNPACKING
The CIP-2 should be carefully unpacked and inspected for any
shipping damage. Keep all packing material until performance
is verified. Should inspection reveal shipping damage,
or should hidden damage be revealed, immediately file
a claim with the carrier. This inspection should include
ascertaining that all the various components are mechanically
secure.
IV.
INSTALLATTON
Prior to installation of the CIP-2, ensure that all relays
are mechanically secure in their sockets.
The CIP-2 comes factory-wired for 120 VAC operation. If
240 VAC operation is desired, the primary lines of the power
transformer can be reconnected, as shown in Schematic Diagram
9lC7l84. These lines are located on the power barrier
strip next to the fuse holder. Extra space is provided for
the 240 VAC connection.
The CIP-2 Command Interface Panel is designed to be rackmounted
within two feet of the MRC-l Microprocessor. The
unit comes supplied with extender brackets which are useful
for rear rack mounting configurations. However, these extender
brackets should be removed when the CIP-2 will be
mounted on the front of a rack.
After the CIP-2 is secured to the rack, its input "D" connector
should be connected to the output of the appropriate
filtered I/O board. In turn, this I/O board should be connected
to either an Open Collector Output Board, 20C2755-l,
or an Optically-Isolated Output Board, 20B2705.
CIP-2 Command Interface Panel (91C7l84)
7 March 1980 -3-

WARNING: Improper operation will result if the CIP-2 is ­
used in conjunction with the Modified Open Collector Output
Board, 20C2755-2.
AC power may now be connected to the CIP-2.
The CIP-2 relay outputs are located on the two large barrier
terminal blocks which are situated along the top and
bottom of the PC board. These terminal blocks are electrically
connected to the relay contacts and are labeled Kl
through K16. KI is actuated by Command Channell from the
Command Output Board. K2 through Kl6 are controlled, respectivaly,
by Command Channels 2 through 16. If more than
one CIP-2 is used, then Kl through Kl6 on the second CIP-2
are controlled, respectively, by Command Channels 17
through 32 from the second Command Output Bo~rd. Relay
control may be expanded in this manner up to 64 channels.
Each relay output has three connections associated with it:
"C", or common line~ "NO", or normally-open contact~ and
"NC" , or normally-closed contact. "Normally", in this case,
indicates the relationship between the relay contacts and
the common line when the relay coil is not energized. Lines
to the externally-controlled equipment should be connected
to the appropriate relay terminal blocks. These terminal
blocks feature wire-clamping screws which eliminate the
need to lug wires. For 5-ampere service, use 16-gauge wire.
Spare DC power is available at the spare power terminal
block located on the CIP-2 PC board. The voltage at these
terminals is 28 VDC unregulated with an output current
capability between 25 rnA and 281 rnA, depending on the number
of relays installed in the CIP-2. A formula for deter-
CIP-2 Command Interface Panel (91C7184)
7 March 1980 -4-

mining the allowable spare power current capability for a
given number of relays is;
I rnA = 28l-N (16)
where N is the number of relays installed. For example, if
the CIP-2 contains eight relays, a maximum of 153 rnA can be
drawn from the spare power terminals.
v. THEORY OF OPERATION
The following description is with reference to Schematic
Drawing 9lC7l84.
Transformer Tl, in conjunction with diodes CR17, CR18 and
filter capacitor, C3, form a full-wave 28 VDC unregulated
power supply with sufficient capacity f6~ powering sixteen
16 rnA relays. Capacitors Cl, C2 and C4 perform the function
of RF filtering, while resistor Rl improves the load regulation
of the power supply. Since the full current capability
of the supply is not needed for driving relays, external
access to the supply is provided through the spare power
terminals and fuse Fl. The amount of current that can be
drawn from this source (which depends on the number of
relays installed in the CIP-2) is defined in Section IV,
INSTALLATION.
To conserve space, the relays used in the CIP-2 are magnetically
(as opposed to mechanically) biased. This requires
that coil power be of proper polarity. Therefore, the positive
line of the power supply connects to the positive coil
inputs on relays Kl through K16. Diodes CRI through CR16
serve as transient snubbers to suppress turnoff transients
which might otherwise damage the relay drivers.
CIP-2 Command Interface Panel (9lC7l84)
7 March 1980 -5-

The negative coil lead of each relay is brought out to a
37-pin 110" connector. Pins 1 through 16 of this connector
are connected respectively to relays Kl throug~ K16, and
pins 20 through 35 function as ground returns. Relay Kl
will be activated by a low impedance connection between
pins I and 20. This connection may be affected by an open
collector gate or a switch. The worst case open circuit
voltage across these pins is 35 VDC. The worst case short
circuit current through these pins is 22 mAo The other
relay control pins function similarly.
Each relay has a common lead, a normally-open contact and
a normally-closed contact, all of which are connected to
wire-clamping terminal blocks, where connections to externally-controlled
equipment are to be made. ~pe non-inductive
current-carrying capacity of these contacts is SA
maximum.
VI • TROUBLESHOOTING
A. Partial Failure (Some Relays Work)
This indic~tes
that the CIP-2 power supply is operating
correctly. One possible problem could be a faulty relay.
Try exchanging this relay with one from a functioning channel.
If the bad channel still does not work, determine
if the relay is pulling in (there should be an audible
click upon activation). If the relay is pulling in but
there is no change in the output, then the problem is a
break between the relay contacts and the output barrier
strip. However, if the relay is not changing state on
command, there is either a fault in the CIP-2 or the MRC-l
Command Output Board. A test to isolate the unit at fault
is as follows:
CIP-2 Command Interface Panel (91C7184)
7 March 1980 -6-

Disconnect the CIP-2 "D" connector from its mating
"D" plug on the filtered I/O board and carefully
inspect the pins on both connectors. If, -for example,
relay K4 were inoperative, use a small screwdriver and
short pins 4 and 23 in the CIP-2 liD" connector together.
If the relay operates properly under this condition,
the problem lies either in the MRC-l Command Output
or filtered I/O board, and their respective manuals
should be consulted. However, if the relay still does
not operate, then there is likely an open or short in
the PC board trace or the connector cable of the CIP-2
that corresponds to this relay.
B. Complete Failure (No Relays Work)
The most probable cause of this condition is the power
supply. Check the cO,nnection to AC mains and fuses F 1
and F2. The voltage at the spare power terminals should
be 28V ±20%.
If the power supply is functioning properly" then the
fault is either a faulty Command Output Board or an improperly
connected system. Check the CIP-2 connections
to the MRC-l with referen-ce to Section IV, INSTALLATION.
If this seems normal, then troubleshoot the appropriate
Command Output Board with reference to its manual.
WARNING: Improper operation will result if the CIP-2 is
used in conjunction with the MRC-l Modified Open Collector
Output Board, 20C2755-2. Refer to Section II, SPECIFICATIONS,
for proper Command Output Board selection.
CIP-2 Command Interface Panel (9lC7l84)
7 March 1980 -7-

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