Peaktronics DHC-300 User manual

DHC-300 page 1 of 4
Quick Cal & Troubleshooting Guide
www.peaktronics.com
PEAKTRONICS, Inc. 1363 Anderson Clawson, MI 48017 Phone [phone] FAX [phone]-174B
Quick Calibration Procedure
General
The MODE button selects a particular function, or mode, and the indicator for the selected mode turns on solid. Pushing
the MODE button saves any new setting of the current mode before switching to the next mode. The adjust up (▲) and
adjust down (▼) buttons are used to make adjustments to current mode. For more details regarding calibration and
features refer to the manual.
AUTO
MANUAL / FB POT CAL
CLOSE
OPEN
AUX CLOSE OUTPUT
AUX OPEN OUTPUT
COMMAND TYPE
LOSS OF COMMAND
DIGITAL
4-20mA
1-5VDC
0-5VDC
0-10VDC
LAST
MODE
Digital High Resolution
AUX POSITION OUTFAULT
(FLASHING) CAL (STEADY ON)
(BOTH OFF)
PEAKTRONICS
OPEN
actuator motion
OPEN
actuator motion
REVERSE ACTING
REFERENCE ROTATIONS
DIRECT ACTING
1. Use the mechanical override to move the actuator to a mid-stroke position to allow for safe electrical operation of
the actuator while determining actuator rotation. If the actuator is outfitted with a local/remote station, select the
remote mode. CAUTION! Incorrect actuator rotation can cause damage to the actuator and/or valve.
2. To test the actuator rotation, apply 3-phase power with earth ground and verify that the DHC-300 is in the "Manual
Mode", and that the yellow "MANUAL/FB POT CAL" LED is illuminated. If not, immediately push the mode
button as required until the LED is illuminated (actuator will stop rotation in this mode). The LED may be flashing
(at different speeds) through the next several steps. This is expected and be will be explained.
3. Press the adjust up (▲) button to confirm that the actuator moves toward open as shown in "Direct Acting" above.
If not, turn all power off, reverse L1 and L2 power connections, and retest for correct actuator rotation.
4. Use the adjust buttons (▲and ▼) to move the actuator and verify that the limit switches are set past the desired
open and closed valve positions, but not so far as to interfere with the mechanical end stops, if the actuator has this
feature. Then move the actuator to mid stroke.
5. If LED is solid, proceed to step 7.
6. If LED is flashing, loosen the gear on the actuator shaft and rotate the potentiometer gear until the LED is no longer
flashing, but on solid - this indicates the center of the potentiometer’s travel. Note that the LED will flash at a
slower rate the farther away from the mid position it gets. Once the LED is on solid tighten the actuator shaft gear
and ensure that the gear engagement is tight and properly meshed.

DHC-300 page 2 of 4
Quick Cal & Troubleshooting Guide
www.peaktronics.com
PEAKTRONICS, Inc. 1363 Anderson Clawson, MI 48017 Phone [phone] FAX [phone]-174B
7. Push the MODE button until the “CLOSE” LED is lit solid. Use the adjust down (▼) button to drive the actuator
completely closed so that the associated limit switch trips. Then tap the adjust up (▲) button to move the actuator
just off the limit switch to the desired valve closed position.
8. Push the MODE button until the “OPEN” LED is lit solid. Use the adjust up (▲) button to drive the actuator
completely open so that the associated limit switch trips. Then tap the other adjust button to move the actuator just
off the limit switch to the desired valve open position.
9. If an OTR-100 or OTR-101 option module is installed, follow Auxiliary Open/Close Setup (see below); otherwise
continue to the next step.
10. Push the MODE button until the “COMMAND TYPE” LED is lit solid. Use the adjust buttons (▲and ▼) to select
appropriate input signal (4-20mA, 1-5VDC, 0-5VDC, 0-10VDC, or Digital). If 0-5VDC or 0-10VDC is selected,
the LOSS OF COMMAND feature is not available, so proceed to step 12.
11. Push the MODE button until the “LOSS OF COMMAND” LED is lit solid; this sets the actuator to a predetermined
position upon loss of command. Use the adjust buttons (▲and ▼) to select appropriate position (OPEN, CLOSE,
or LAST POSITION).
12. If an OTR-100, OTR-101, OTX-100, or OTX-101 option module is installed, follow Auxiliary Position Output
Mode Setup (see below); otherwise continue to the next step.
13. Push the MODE button until the “AUTO” LED is lit solid. Your calibration is now COMPLETE. Connect the
command signal wires to connector J2: terminal #4 (signal ground) and terminal #5 (mA input) OR terminal #6
(voltage input), depending on the application. If a signal input was already connected, the actuator should have
moved to that position.
Auxiliary Open/Close Setup (for units with an OTR-100 or OTR-101 option module only)
1. Push the MODE button until the “AUX CLOSE OUTPUT” LED is lit solid. Use the adjust buttons (▲and ▼)
to drive the actuator to the desired auxiliary close position.
2. Push the MODE button until the “AUX OPEN OUTPUT” LED is lit solid. Use the adjust buttons (▲and ▼)
to drive the actuator to the desired auxiliary open position.
3. Continue with Step 10 in the Quick Calibration Procedure (see above).
Auxiliary Position Output Mode Setup (for units with an OTR-100, OTR-101, OTX-100, or OTX-101 option module only)
1. Push the MODE button until the red “AUX POSITION OUT CAL” LED is lit solid while the “CLOSE” LED
flashes. Note that the red LED flashes to indicate a “Fault” and turns on solid to indicate the "AUX POSITION
OUT CAL" modes.
2. Use the adjust buttons (▲and ▼) to set the desired output voltage(VDC) or current (mA) on the option module
output for the closed position.
3. Push the MODE button so the “AUX POSITION OUT CAL” LED remains solid while the “OPEN” LED
flashes. Use the adjust buttons (▲and ▼) to set the desired output voltage (VDC) or current (mA) on the
option module output for the open position.
4. Continue with Step 13 in the Quick Calibration Procedure (see above).

DHC-300 page 3 of 4
Quick Cal & Troubleshooting Guide
www.peaktronics.com
PEAKTRONICS, Inc. 1363 Anderson Clawson, MI 48017 Phone [phone] FAX [phone]-174B
PROBLEM POSSIBLE CAUSES REMEDIES
No response from unit
(All lights are off.)
No power
Excessive voltage applied to unit.
Blown or missing fuse
Check power source.
Replace unit.
Replace with appropriate fuse; see
"Specifications" in manual.
No response from unit, and no
response from the adjust (▲and ▼)
or Mode buttons.
(MANUAL / FB POT CAL light is lit
solid.)
Jumper wire on J7 terminal block is
missing.
Auto/Manual station is improperly
wired.
Install jumper wire on J7 terminal block.
Check wiring on Auto/Manual station;
see "Override Mode" in manual.
Actuator rotates valve backwards.
Actuator or valve is mounted
incorrectly on coupling.
Actuator needs to be reverse acting.
Remount actuator as necessary.
Refer to "Close" and "Open" modes in
manual.
Actuator does not respond to input
signal.
(FAULT indicator constantly flashes.)
No input signal connected when using
4-20mA, 1-5VDC, or Digital inputs.
Input signal polarity reversed.
Input signal wired to wrong terminal.
Feedback potentiometer or solid state
driver are improperly wired.
Feedback potentiometer out of range.
Defective feedback potentiometer.
Defective motor brake (holds motor)
Defective motor (not turning)
Motor turns, but actuator output shaft
is not moving.
Connect input signal and refer to "Loss
of Command" in manual.
Reverse input wires.
Check input signal wiring; refer to
"Power/Signal J2" in manual.
Check wiring; refer to "Motor J1" and
"Feedback Pot J6" in manual.
Refer to "Manual/FB Pot Cal" in
manual.
Replace feedback potentiometer.
Repair or replace motor brake.
Repair or replace motor.
Repair or replace actuator.
Actuator does not respond to input
signal.
(FAULT indicator is off.)
Closed and open positions are set to
the same position.
Set closed and open settings; refer to
"Close" and "Open" modes in manual.
FAULT indicator flashes after actuator
reaches the fully closed or open
position.
Closed or open limit switches set
inside the operating range.
Torque switches trip due to mechani-
cal end stops set inside the operating
range.
Adjust limit switch cams; refer to
"Close" and "Open" modes in manual.
Adjust mechanical end stops; refer to
"Close" and "Open" modes in manual.

DHC-300 page 4 of 4
Quick Cal & Troubleshooting Guide
www.peaktronics.com
PEAKTRONICS, Inc. 1363 Anderson Clawson, MI 48017 Phone [phone] FAX [phone]-174B
PROBLEM POSSIBLE CAUSES REMEDIES
AUX CLOSE OUTPUT or AUX
OPEN OUTPUT indicators flash.
Actuator position is near closed or
open.
If an OTR-100 or OTR-101 option
module is installed, set Aux Close and
Aux Open positions; refer to "Aux
Close Output" and "Aux Open Output"
modes in manual.
If an OTR-100 or OTR-101 option
module is not installed, no remedy is
required.
Actuator operates erratically.
(FAULT indicator flashes erratically.)
AC ripple induced on the command
input signal.
Defective feedback potentiometer
Loose feedback potentiometer or loose
feedback potentiometer gears
Use equipment that isolates AC ripple
from the command signal.
Replace feedback potentiometer.
Tighten feedback potentiometer and/or
potentiometer gears.
Actuator hunts for position.
Sloppy gear tooth engagement
No motor brake or brake slipping
Unstable command input signal from
PID control loop
Adjust feedback potentiometer gears for
tight engagement.
Install or repair motor brake.
Adjust PID parameters for stable
command signal.
Actuator rotates "CW" when the adjust
up (▲) button is pushed in the
"Manual Mode".
Improperly phased power source
Control inputs miswired (if CLOSE
light on solid state driver lights)
M1 and M2 miswired (if OPEN light
on solid state driver lights)
Ensure L1 and L2 are correctly
connected to solid state driver.
Reverse control input wires, OPEN and
CLOSE, on solid state driver.
Reverse motor wires, M1 and M2, on
solid state driver.
Actuator malfunctioning and
indication of corrosion inside actuator
housing.
Exposure to water from conduit
entrance
Exposure to water from unsealed
actuator housing
Exposure to moisture from condensate
Corrosion from exposure to salts or
acids
Perform appropriate remedy, then
replace unit:
Install drip loop at conduit entrance.
Inspect and/or replace actuator housing
gasket; use actuator with proper sealing.
Use heater and thermostat and/or
desiccant packets.
Use corrosion inhibitors and desiccant
packets.