Honeywell ControLinks R7999A, Руководство пользователя

Страница: 7 / 16

R7999A,B CONTROLINKS™ CONTROLLER
7 65-0238—10
Table 4. R7999 Status LED Blink Patterns.
A red LED, normally off, indicates a Lockout State when lit.
Table 5. R7999 Channel Status LED Blink Patterns.
a
The four amber motor LED provide status for the individual ML7999 Actuators; e.g., Motor 1 LED is Air Actuator Status, Motor 2
LED is Fuel 1 Actuator Status, Motor 3 LED is Fuel 2 Status, and Motor 4 LED is FGR Actuator Status.
Manual Operation
Place the R7999 in a manual firing rate condition by applying
line voltage to terminal 4. The R7999 will drive to the desired
firing rate control position by the value of the resistance set at
terminal 36/38. A 200-Ohm value equals minimum modulation;
4500 ohms equals maximum modulation. Linear interpolation
exists for all other values.
Commissioning Process
The primary tasks to be accomplished by the commissioning
process are as follows:
1.
Establish the endpoints of each actuator within the
system.
2.
Establish the purge position.
3.
Establish the lightoff position.
4.
Establish minimum and maximum modulation positions.
5.
Establish a fuel, air, FGR mixture profile for up to 20
points between the minimum and maximum modulation
points for each fuel source within the system.
The commissioning process requires either the S7999
touchscreen display, or the use of the ZM7999 ControLinks™
Commissioning Software running on a laptop or PC with a
minimum operating system of Windows 95. Additional
minimum requirements include a Pentium® class processor, or
equivalent, with 16megabytes of RAM and a one gigabyte hard
drive with 100 megabytes of free hard drive memory. The PC
or laptop must have a serial or USB port. If using a serial port,
an RS232-to-RS485 converter (like the QM4520) is required to
communicate with the R7999. Shielded cable is recommended
as interface wiring.
If using a USB port, a Keyspan® or Belkin® USB to RS-485
converter is recommended.
The R7999 requires the presence of one of the Fuel Select
inputs to start communications with the ZM7999 ControLinks™
Commissioning Software. Additional wiring interface
requirements include that HF and LF command inputs cannot
be activated at the same time.
NOTE: A stack gas analyzer is required to commission
the ControLinks™ Control System.
Table 6. RS-485 to R7999 Hookup Data.
Figs. 4 and 6 provide a standard block hookup diagram for the
R7999 and associated equipment.
Power (Green) LED State Meaning
Always Off Control has failed, or has no power.
Always On Control cannot run or communicate until a critical fault has been corrected. This state occurs at
each power up or reset. Control is in the Initiate State or Alarm Initiate State or Alarm Hold State.
Check that only one fuel has been selected, or that HF and LF are not active at the same time. If
HF and LF are active at the same time, the red LED will also be on.
1 short blink every interval Control is in Postpurge or Standby State.
2 short blinks every interval Control is in a low voltage condition.
3 short blinks every interval Control is in the non-configured state.
4 short blinks every interval Control is in the commissioning state.
Steady medium blink Control is in the Run State.
Steady fast blink Control is in manual mode.
Motor (Amber) LED State
a
Meaning
Always Off Actuator is not being commanded to move or is not configured.
On Actuator is in motion.
1 short blink every interval. Actuator Failure: Failed timing plausibility check.
2 short blinks every interval. Actuator Failure: Failed actuator ID process.
3 short blinks every interval. Actuator Failure: Analog/Digital reading of potentiometer out of range.
4 short blinks every interval Actuator Failure: Potentiometer failure—wiper resistance.
Medium speed blink. Actuator Warning: Wiper resistance high.
RS-485 Connects to R7999
Data+ A
Data- B
Ground C