High Country Tek DVC80 - Manual (Page 39)

P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools Page | 39
These outputs are designed to source (supply) power supply voltage when enabled. Each output is short circuit
protected and has open circuit detection. The maximum current per output capability is 3.3 Amps.
PWM OUTPUTS (PWM OUT) – Qty (2 for DVC5/7 or 3 for DVC10)
These outputs are designed to sink current to ground at the PWM frequency (19 khz). Each output can be
configured for a specified current range for maximum current sensing resolution. All outputs are short circuit
protected and most current ranges have both open circuit and short circuit detection (see Current Range Details
for more information).
Current Range Details
Each DVC10 PWM output can be configured to a current range, which will produce the maximum current
sensing resolution.
3.3amp, 1.67amp, 1 amp, 500 ma, 250 ma, 125 ma and 63 ma valves plus 90 ma or less EDC valves are
supported.
The DVC5 support a high current (0 to 3.3amps) range and low current (0 to 90ma) range.
The DVC7 support a high current (0 to 3.3amps) range.
The basic proportional valve control circuit looks like the following:
DVC5/7/10 programmable
High-Side
Voltage source
Valve
Positioning Coil and Spool
Switch
Low-Side Input
Programmable
Switch (PWM)
Current Measuring Device
GND
A Bang-Bang valve circuit looks like the following:
DVC5/7/10 programmable
High-Side
Voltage source
Valve On Off Coil
GND
Each Output group can control from 2 to 3 coils representing 1 to 3 valves depending on the valve types. The
DVC5/7 can control from 2-8 valves and the DVC10 3-9 valves.
The four supported valve control configurations are namely:
Dual Coil High Side
Single Coil High Side
Single Coil Low Side
High-Side Only
+V
+V