Nextron MASTERTRACE MS-2101, Руководство оператора

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2.1
MS-2101 Chapter 2 Installation
Unpacking the Controller
Check the shipping cartons for damage, or other signs of
rough handling or abuse. If damaged, notify the shipping
carrier at once.
Carefully remove the MS-2101 from the shipping box.
Save the packing materials in case the unit needs to be
transported at a later date.
Inspect face plate for damage and check electronics for
loose wiring or damage. Report any damage to the carrier
at once.
Control Module
See Figure 2.1 Main Board Layout and Figure 2.2
Power Board Layout to locate the following:
• S1 Address Enable: When the switch is set to DIS , the
Module Number cannot be changed from a master on
the data highway. When set to
EN , the Module Number
can be changed for the next two minutes from a master
on the data highway. During this time the ADDRESS
ENABLE light is
on .
• S2 Program Enable: When the switch is set to DIS ,
programming is disabled; setpoints and configuration
cannot be changed. When set to
EN , programming is
allowed.
• S3 RS485-120: When the jumper is set to IN , the
RS-485 line is terminated by a 120 ohm resistor. Only
the last Control Module on the data highway should be
set to
IN .
Terminals: Refer to Figure 2.7 Typical Wiring Diagram,
for power, heater and RTD field connections.
• T1 Alarm Contact: The mechanical output is rated 30
Vdc/100mA, 120Vac/0.52A, 62.5W Max. Contact is
configurable for normally open or closed.
• T2 Alarm Light Output: The output is configurable for
normally open, closed or flash. Output is rated 5 Vdc
@ 50 mA for an LED type lamp (terminals 18+ and
19-).
• T3 Override Input: With the Override function
(SETPOINTS\HEATER SETUP\OVERRIDE) set to
on , the heater output is affected by the override input.
When the terminals are open, the heater is forced off.
When the terminals are closed, the heater is controlled
by the RTDs unless the heater setpoint is set to off. In
this case, the heater is solely controlled by the override
input. The logic of this input allows either ambient
temperature override or load shedding on multiple
controllers (terminals 24+ and 25-).
• T4 RTD1A and RTD1B Inputs: 3 wire RTD input.
Ground terminal connects to shield or case. Lead
resistance compensated. (terminals 6-13).
• T5 Earth Ground: (terminal 1).
• T6 Heater Power Input: 85-280Vac/30A max
continuous ( terminals 2 and 3).
• T7 Heater Power Output: 85-280Vac/30A max
continuous ( terminals 4 and 5).
• T8 Safety Ground: Terminate to ground stud. Termina-
tion of safety ground is required for transient protec-
tion circuit on RTD inputs and RS485 serial port to
operate properly (terminal 14).
• T9 Extra A/D Input/Output: Terminals 22 (POUT) and
23 (PIN) are the output (+12Vdc) and input (4-20mAdc)
connections to a 4-20mA analog signal transmitter.
Status Lights:
• L1 Power: Light is on when control power is present.
• L2 Address Enable: Light is on when controller is in
Address Enable mode. Light must be on to allow the
Module Number to be changed from a master on the
data highway.
• L3 Transmit: Flashes when data is being transmitted
from the serial port to the data highway.
• L4 Receive: Flashes when data is being received at the
serial port from the data highway.
• L5 Override: Light is on when the Override Input ter-
minals are shorted.
Communication Ports:
• C1 Interface to Main/Power Board: Connector to
interconnect power and main board via ribbon cable.
• C2 Serial Port 1: Connection to an RS-485
data highway via a 2-conductor, shielded, twisted pair
cable. Maximum Cable length with 32 devices without
repeater is 4,000 feet. ( terminals 15+, 16-,17 SHD).
Warning - The ground fault trip function is
intended for equipment protection only and
should not be used in place of ground fault
protection for personnel protection where
this is required.