VC3500/VC3700 Troubleshooting Manual
Valco Cincinnati Page 17
Valve Driver board - 151xx367
(Reference Schematic 999xD151-203)
Service Access Points
Connectors
J1 Connection to Interface board via a 10 pin ribbon cable.
J2 Connection for transformer secondary voltages to form the 56 vdc peak
voltage and the 12 vdc hold voltage.
J3 Connection for the first glue valve on this card.
J4 Connection for the second glue valve on this card.
Indicators
D1 (IN1) When lit, this yellow LED indicates that an input signal has been
received from the Interface board to energize glue valve 1.
D2 (IN2) When lit, this yellow LED indicates that an input signal has been
received from the Interface board to energize glue valve 2.
D3 (12V) When lit, this green LED indicates that the 12 vdc hold voltage is
available to energize a glue valve.
D4 (15V) When lit, this green LED indicates that 15 vdc input to regulator U3 is
present.
D5 (56V) When lit, this green LED indicates that the 56 vdc peak voltage is
available to energize a glue valve.
D6 (HOLD-1) When lit, this yellow LED indicates that the 12 vdc hold voltage is
applied to glue valve 1.
D7 (PEAK-1) When lit, this yellow LED indicates that the 56 vdc peak voltage is
applied to glue valve 1.
D8 (HOLD-2) When lit, this yellow LED indicates that the 12 vdc hold voltage is
applied to glue valve 2.
D9 (PEAK-2) When lit, this yellow LED indicates that the 56 vdc peak voltage is
applied to glue valve 2.
D10 (Fault F2) When lit, this red LED indicates a fault with Fuse F2.
D11 (Fault F3) When lit, this red LED indicates a fault with Fuse F3.
Replacement Fuses
Function Label Type Value Valco Number
Hold Voltage current limit F1 5 x 20 mm 5A 085xx206
Channel 1 current limit F2 PC Mount 5A 085xx216
Channel 2 current limit F3 PC Mount 35A 085xx216
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