Nextron MASTERTRACE, Руководство по эксплуатации

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MASTER TRACE
5.1
Chapter 5 Operation
5 Operation
This section provides information on how to operate the
MasterTrace™ modules. Refer to the module name plate(s)
and Chapter 3.4, Model Codes, if you are unsure of your
product and its specific features.
5.1 Control Modules
Refer to the following Figures for the appropriate Control
Module(s).
• Figure 5.1: MS-1DIN2 & MS-2DIN2
• Figure5.2: MS-1TXH0
• Figure 5.3: MS-1DXH0 & MS-2DXH0
• Figure 5.4: MS-5ADXH0, MS-5ATXH0 & MS-10ADXH0
• Figure5.5: MS-5ADIN2 & MS-10ADIN2
• Figure5.6: MS-10ADIN2T
• Figure5.7: MS-10ADIN2X
5.1.1 Status Lights:
• L1 Power: Light is on when control power is present.
• L2 Heater: Each heater circuit has a light which is on
when the heater relay or contactor is closed.
• L3 Alarm: Light is on if there are one or more alarms on
any circuits of the Control Module.
• L4 Address: Light is on when Control Module is in
Address Enable Mode. Light must be on to allow the
Module Number to be changed from a master on the
data highway.
• L5 Transmit: Each serial port has a light which flashes
while the Control Module is transmitting information to
the data highway.
• L6 Receive: Each serial port has a light which flashes
while the Control Module is receiving information from
the data highway.
• L7 Override: Light is on when the Override Input termi-
nals are shorted. When light is on, all heaters which are
programmed with Master Override set to ON should be
on if their heater setpoints are set to off/none.
5.1.2 Switches & Jumpers:
• S1 Address Mode: When the switch is set to DISABLE,
the Module Number can’t be changed/read from a master
on the data highway. When set to ENABLE, the Module
Number can be changed/read for the ten minutes after
the module’s power-up from a master on the data high-
way. During this time the ADDRESS light is on.
• S2 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.
5.1.3 Terminals: Refer to Typical Wiring Diagrams for
Power, heater and RTD field connections.
Note: Not all models are equipped with the following.
• T1 Alarm Contacts: Alarm contact type is the same for
all models. In hazardous areas the opto-isolated dc output
is rated 30Vdc @ 0.1A (terminals 4 & 5) and the dry
mechanical output is rated 30Vdc@10mA, 250Vac@0.5A
(terminals 6 & 7). In ordinary areas the opto-isolated dc
output is rated the same as hazardous but the dry
mechanical output is rated 120Vac@1A, 30Vdc@0.1A.
Contacts are configurable for normally open or closed.
• T2 Alarm Light Output: The output is configurable for
normally open, closed or flash. Output is rated 12 Vdc
@ 30 mA for an LED type lamp (MS-1 & MS-2 terminals
16+ & 17-, MS-5A and MS-10A terminals 13+ & 14-).
• T3 Master Override Input: Only those heaters which are
programmed with Master Override set to ON are affected
by Master Override Input. When the terminals are open,
all Master Override Enabled heaters are forced off. When
the terminals are closed, all Master Override Enabled heat-
ers are controlled by their individual RTDs unless their
Heater Setpoints are set to off/none. In this case, the
heater is turned on. The logic of this input allows either
ambient temperature override or load shedding on all or
selected heaters. (MS-1 & MS-2 terminals 26+ & 27-, MS-
5A & MS-10A terminals 11+ & 12-).
• T4 RTD Input: 3 wire RTD input. Ground terminal con-
nects to shield or case. Lead resistance compensated.
For MS-1 & MS-2, terminals 8-15 are RTD inputs. For
MS-10A, terminals 60-99 are RTD A inputs, and terminals
160-199 are RTD B inputs. For MS-5A, all its RTD inputs
are in terminals 60-99 (60-63 for RTD 1A, 64-67 for RTD
1B, 68-71 for RTD 2A, 72-75 for RTD 2B, ..., 92-95 for RTD
5A, 96-99 for RTD 5B.).
• T5 Control Power Input:120Vac input, 2A fused (termi-
nals 2 & 3), earth ground (terminal 1).
• T6 CT’s: Heater Current & Ground Fault monitoring trans-
formers (MS-1 & MS-2 terminals 28-35, MS-5A & MS-
10A terminals 20-59). Solid-state models only.
• T7 SSR’s: 12Vdc, 15mA max for driving digital input of
solid state relays (MS-1 & MS-2 terminals 40-43, MS-5A
& MS-10A terminals 100-119). Solid-state models only.
• T8 Voltage: Connect to heater input for voltage monitor-
ing. 300Vac max. (MS-1 & MS-2 terminals 36-39). One &
two-point single-phase solid-state models only.
• T9 Safety Ground: Terminate to solid ground separate
from panel ground for transient protection circuit on RTD
inputs. (MS-5A & MS-10A terminals 122 & 123). Five &
ten-point models only.
• T10 GF Test: Wire loop is passed through GF CTs &
terminated at the GF test terminals. An ac test current is
applied through wire loop during GF testing. (MS-5A &
MS-10A terminals 120 & 121). 5 & 10-point models only.