Beck 22-309, Instruction Manual

Page: 41 / 72

80-4280-10, Rev. 4
41
DCM-2 REPLACEMENT
The following procedure describes the steps
required to replace the Digital Control Module
(DCM-2) chassis assembly. These instructions
are applicable for DCM-2 Replacement kit
numbers 12-8061-75 & 12-8061-78 (for model
22-309) and 12-8061-85 & 12-8061-88 (for model
22-409).
The Group 22 operating parameter table
provides a list including some of the more important
parameters that may require configuration when
replacing a DCM-2. Review and obtain these
settings from the original DCM via HART or
serial port commands if possible, so they may
be configured on the new DCM-2. A DCM serial
cable kit is included with the DCM-2 replacement
kit.
TABLE 2 - GROUP 22 OPERATING PARAMETERS
(These values will be used to check the calibration of the actuator after the replacement DCM-2 is installed).
Operating
Parameters
Recorded
Value
HART Interface
HART
Menu
Variable
Name
Default
Value
Command
Default
Value
Drive Rotation (Increasing Signal) 5A Drive Dir CW drvrotation 0 (CW)
Operation Mode 7 Op Mode Follow opmode 0 (follow)
Torque Zero 5E Trq Null 0
*
torq0K 0
*
Torque Constant 5E Trq Const 550
*
torqconst 550
*
CPS Volts at 0 Degrees 5B CPS Zero 1.300 cpsvat0deg 1.000
CPS Volts per 100 Degrees 5B CPS Span 2.400 cpsvper100deg 4.000
Travel 5A Travel 100.00 travel 100.00
Demand LOS Threshold (mA) 5C DemLimLwr 3.20 demlos 3.20
Demand LOS Mode 5C LOS Mode Stay demlos sip
Demand LOS Go To Position (%) 5C LOS Pos 50.00 demlosgtp 50.00
0% Demand (mA) 5C DemRngLwr 4.00 dem0pctma 4.00
100% Demand (mA) 5C DemRngUpr 20.00 dem100pctma 20.00
Stall Time (Sec) 5 Stall Time 300 stalltime 300
Demand Function 5C Dem Curve Linear demfunc linear
Step Size 5 Step Size 0.10 stepsize 0.10
IO Mode 5D Feedback Enabled iomode 1 (fdbk)
0% Feedback (mA) 5D FB RngLwr 4.00 fdbk0pctma 4.00
100% Feedback (mA) 5D FB RngUpr 20.00 fdbk100pctma 20.00
Torque Enable 5E Trq/Thrust Enabled torqenable 1 (enabled)
Over Torque Stop 5E Ovt Prot Disabled ovtstop 0 (disabled)
Polling Address 4 Poll Addr 0 polladr 0
Drive Model 4 Model 22-309 drvmodel 12 (22-309)
*Default values only – The specific numbers for these values are unique to each actuator and are determined during manufacture.
These specific numbers are noted on a tag affixed to the actuator body within the Electronics Compartment. Default values should
only be used if the specific numbers are unknown.