Wiring Diagrams & Electrics
•
Fuses
Watkiss Automatic SpineMaster Service Manual - Edited 17/06/04
7 - 3
7.2 Fuses
WARNING
The ASM uses double-pole/neutral fusing (i.e. two fuses), so when removing
any covers or changing fuses always first disconnect the machine from the
mains electricity supply by switching off and unplugging the machine.
In addition to the two main fuses, there are three located on the Power Inter-
face PCB and one on the Transformer PCB. Both of these PCB’s are located
behind the RH Side Cover. The table below lists the fuses fitted in the ASM.
Ensure that the fuse holder grips the fuse firmly. A loose fuse holder may
cause connection problems. If needed, bend the tabs on the holder to tighten
the fit.
Note:
• If F1 fails, the processor will not work, so the ASM will not function.
• If F2 fails, the input sensors will not work, but the drive will run.
• If F3 fails, there will be no drive, but the clamp will still operate.
• If F6 fails, the ASM will not function at all.
The ASM may work out of phase once fuses have been replaced. To correct
this, simply switch the machine off and then on again.
7.3 Limits for Machine Interface
Note: Polarity is important. See individual installation instructions.
7.4 Electronic Sensors
Sensor activation is indicated on the 900-197 Control PCB.
There is also a LED on the back of each sensor.
7.4.1 Infeed Optical Sensor
The Infeed Optical Sensor detects the booklet as it enters the ASM.
7.4.2 Clamp Optical Sensor (booklet presence)
This sensor detects the presence of a booklet when it reaches the Clamp.
LOCATION
FUSE FUNCTION
RATING
Mains Input
Socket
-
Main line fuse
x2 (1 per line)
240V - 5.0A, HRC Quick acting, F
115V - 10A, HRC Quick acting, F
900-141 PCB
F1
9V Rail
3.15A Glass, Anti-surge, T
F2
28V Rail
6.3A Glass, Anti-surge, T
F3
Drive Motor
230V - 4.0A Glass, Anti-surge, T
115V - 6.3A Glass, Anti-surge, T
Transformer PCB
F6
Transformer
3.15A HRC Anti-surge, T
MIN
MAX
Start Signal (Relay Coil)
17V DC
30V DC
Stop Signal (Relay Contacts)
-
40V IA
