Sheet 1

Sheet 1 is a 'one line' drawing that was used to connect the various cables internal to the ADC electronics chassis. The top left hand block representing the interlock panel shows its various connectors. On the left, J201 and J203 are mounted on the front panel on the interlock panel and receive the E-Stop and manual paddle connections. Each of the J40n connector are mounted on the back edge of the panel. J402 brings in the +24V supply for the interlock relay logic. J403 brings the motor drive signal from the servo amplifier and J404 connects the interlocked motor signal to the front output panel at J201. J405 connects logic signals to the Galil I/O module at J701 and to the servo amplifier at J3. The AC input module connects to the Pulizzi power controller's channel 2. This AC is used to power the Bypass power supply when in bypass, or emergency retract mode. J406 passes logic signals between the interlock panel and the instrument.
Below the Interlock panel block is the Galil Extended I/O block. As above, J702 passes logic signals to the interlock panel. J5 is the main logic cable to the Galil controller. J701 receives the various logic signals from the instrument.
The last block on the left side of the drawing represents the Galil Servo Amplifier. Connector X-AXIS receives the primary and secondary encoder signals from the instrument. J3 receives the limit and home signals from the instrument (via the interlock panel). MX is the motor drive signal. The SIGNALS connector passes the logic and control signals to and from the Galil controller. The AUX ENCODER connector takes all of the auxiliary encoder signals from the amplifier to the controller. In our case, we custom terminated a Galil cable to eliminate the use of Galil's scheme of using two cables and an interconnect board. This is possible only because out controller is only one axis. Note: a second custom terminated cable has been included with the spares. The lowest connector on the amplifier's right side is the main +24V supply input. At the bottom of the block is the ANALOG connector with a Analog Input Board permanently attached. This board has a temperature sensor mounted onboard and also provides monitoring of the +24V power supply.
At the middle of the drawing at top is the +24V power supply and below that is the Galil Motion Controller. The +24V supply is turned on via channel 3 of the Pulizzi controller. It provides +24VC to the interlock panel and the servo amplifier. A third connection provides a monitor signal for the Analog Input Board attached to the servo amplifier. On the Galil controller J2 is the interconnect to the Galil extended I/O module. AXIS A-D contains the control and status signals for the servo amplifier. The AUX. ENCODER connects the auxiliary encoder signals between the controller and the servo amplifier. On the right side of the controller block, the AC IN connection is connected to channel 1 of the Pulizzi power controller. The CAT5 connector is connected to Port 1 of the network switch. The two serial ports, Main and AUX, are wired to the front Input panel and labeled accordingly.
At the top right of the drawing is the Pulizzi AC Power Controller. It's serial port is wired to the front panel as a troubleshooting aid. As seen on the drawing, Channel 1 is wired to the Galil Controller, Channel 2 is wired to the Interlock panel, Channel 3 is wired to the +24V power supply, and Channel 4 is connected to the 'Wall Wart' power supply for the network switch.
The last box on the diagram represents the network switch. Power for the switch comes from channel 4 of the Pulizzi controller via a 'wall wart' type power supply. The network ports are wired as follows:

• Port 1 to the Galil controller
• Port 2 to the Pulizzi controller
• Ports 3 and 4 are wired to the front panel to allow local access for troubleshooting or maintenance
• Port 5 is used as the input

 

Sheet 2

Sheet 2 shows the wiring on the IOM-1964 panel. Because the Galil provided enclosure is too large to conveniently fit with in the ADC electronics box, the I/O board has been removed from the case and mounted onto a aluminum panel that is inserted into the front of the electronics cabinet. The panel also has two connectors mounted on it that connect to the rest of the electronics. J701is wired to the main cable connector on the front panel and J702 is wired to the interlock panel.

J701 Stage I/O

Pin	Signal	Function
1	GND	GND for main logic cable continuity signal
2	MAIN_CABLE_CONN	Main logic cable continuity signal
3 - 6	-	-
7	GND	General GND
8	+5V	+5V for aft cell limits
9	GND	GND for aft cell limits
10	AFT_RET_2ND	Aft prism cell retract secondary limit
11	AFT_DPL_2ND	Aft prism cell deploy secondary limit
12	AFT_HOME	Aft prism cell home signal
13	GND	General GND
14	-	-
15	MOTOR_ENCD_CONN	Motor encoder cable continuity signal
16	LOAD_ENCD_CONN	Load encoder cable continuity signal
17	FWD_CELL_CONN	Forward prism cell cable continuity signal
18	AFT_CELL_CONN	Aft prism cell cable continuity signal
19 - 25	-	-

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This table shows the the connections for J702 which wire to the interlock panel.

J702 Interlock I/O

Pin	Signal	Function
1	GND	GND
2	-	-
3	NET/HARDWARE_ERR	Net or hardware failure pulse. Generated by software, if pulse goes away, front panel LED will light up.
4	GND	GND
5	EMERGENCY_STOP	Emergency stop signal. From either front panel or stage interconnect box
6	2RET	Forward prism cell retract secondary limit signal
7	2DPL	Forward prism cell deploy secondary limit signal
8	MOTOR_CONN	Motor cable continuity signal
9	MAN_PADDLE_CONN	Manual paddle connected signal
10	GND	GND
11	E_STOP	Observatory E-Stop signal
12	LOCAL/REMOTE	Local/Remote control signal
13	BYPASS_MODE	Bypass mode control signal
14	GND	GND
15	GND	GND

 

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This is the special auxiliary encoder cable wiring. This is a Galil 36-pin cable that has been cut in half to make two single channel auxiliary encoder cables.

Special auxiliary encoder cable wiring

36-Pin	DB-25	Signal
1	1	+5V
2	14	GND
3	2	AA+X
4	15	AA-X
5	3	AB+X
6	16	AB-X
19	N/C	+5V
20	19	GND

Note: the signal designations come from the Galil documentation

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