Watlow PM PLUS 6 User Manual

Watlow PM PLUS™ 6 • 99 • Chapter 8: Features
CT Application NOTE: Alarms have to point to the correct source for the current measurement. We
have one measurement that is sampled and held CU.r. Since this is a zero cross device, in zero cross
the current is going to 0 each time the output is turned off. We also calculate an Current RMS value
that takes into account on time versus off time. Be sure alarms are pointed to the current that is
sampled and held or anytime the PID power gets low like less than 2%, the alarm will activate or if
the outputs are off such as control mode set to OFF.
Open Loop Detection
When Open Loop Detection is enabled, the controller will look for the power output to be at 100%. Once
there, the control will then begin to monitor the Open Loop Detect Deviation as it relates to the value entered
for the Open Loop Detect Time. If the specified time period expires and the deviation does not occur, an
Open Loop Error will be triggered. Once the Open Loop Error condition exists the control mode will go off
and an Open Loop message will be display. If the process value goes in the opposite direction, a Reversed
Loop message is displayed. The sensor is likely wired in reverse polarity.
All prompts identified in this section can be found in the Loop Menu of the Setup Page.
Programming the Function Key
1. Go to Operations — Setup — Function Key — Active Level — [High,Low] and use the right arrow key to
select the desired level:
• Select High and the function will NOT be enabled on power up.
• Select Low and the function WILL be enabled on power up.
2. Go to Operations — Setup — Function Key — Action Function — [available functions] and use the right
arrow key to select the desired function.
3. Function Instance - which instance of the function chosen.
Security Features
You may restrict user access to specified Lists and parameters by selecting desired Lock Levels. You may
add an additional layer of security by enabling Passwords.
Read Lock and Set Lock Levels
There are two types of Lock Levels: Set Locks and Read Locks. You can specify Read Lock Levels to restrict
visibility into Lists, and Set Lock Levels to restrict read/write access to users who need not set parameters
in every List. Each Lock Level provides access to specific Lists as detailed below.
SECURITY LOCK LEVELS
Set Lock Levels (Read/Write) Set Lock
0
Set Lock
1
Set Lock
2
Set Lock
3
Set Lock
4 or 5
Factory List R/W R/W R/W R/W R/W
Home Screen R R/W R/W R/W R/W

Watlow PM PLUS 6 Specifications

General

Brand	Watlow
Model	PM PLUS 6
Category	Controller
Language	English