7
OpTiOn Cards
WARNING: Disconnect all power to the unit before
installing option cards.
Adding Option Cards
The PAX and MPAX series meters can be fitted with up to three option cards.
The details for each option card can be reviewed in the specification section
below. Only one card from each function type can be installed at one time. The
function types include Setpoint Alarms (PAXCDS), Communications (PAXCDC),
and Analog Output (PAXCDL). The option cards can be installed initially or at a
later date.
COMMUNICATION CARDS (PAXCDC)
A variety of communication protocols are available for the PAX and MPAX
series. Only one of these cards can be installed at a time. When programming
the unit via Crimson, a Windows
®
based program, the RS232, RS485, or USB
Cards must be used.
SERIAL COMMUNICATIONS CARD: PAXCDC1_ and PAXCDC2_
Type: RS485 or RS232
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Not Isolated from all other commons.
Data: 7/8 bits
Baud: 300 to 19,200
Parity: No, Odd or Even
Bus Address: Selectable 0 to 99, Max. 32 meters per line (RS485)
Transmit Delay: Selectable for 2 to 50 msec or 50 to 100 msec (RS485)
DEVICENET™ CARD: PAXCDC30
Compatibility: Group 2 Server Only, not UCMM capable
Baud Rates: 125 Kbaud, 250 Kbaud, and 500 Kbaud
Bus Interface: Phillips 82C250 or equivalent with MIS wiring protection per
DeviceNet™ Volume I Section 10.2.2.
Node Isolation: Bus powered, isolated node
Host Isolation: 500 Vrms for 1 minute between DeviceNet™ and meter input
common.
MODBUS CARD: PAXCDC4_
Type: RS485; RTU and ASCII MODBUS modes
Isolation To Sensor & User Input Commons: 500 Vrms for 1 minute.
Not isolated from all other commons.
Baud Rates: 300 to 38400.
Data: 7/8 bits
Parity: No, Odd, or Even
Addresses: 1 to 247.
Transmit Delay: Programmable; See Transmit Delay explanation.
PROFIBUS-DP CARD: PAXCDC50
Fieldbus Type: Profibus-DP as per EN 50170, implemented with Siemens
SPC3 ASIC
Conformance: PNO Certified Profibus-DP Slave Device
Baud Rates: Automatic baud rate detection in the range 9.6 Kbaud to 12 Mbaud
Station Address: 0 to 125, set by rotary switches.
Connection: 9-pin Female D-Sub connector
Network Isolation: 500 Vrms for 1 minute between Profibus network and
sensor and user input commons. Not isolated from all other commons.
PAXUSB PROGRAMMING CARD: PAXUSB00
Type: USB Virtual Comms Port
Connection: Type mini B
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Not Isolated from all other commons.
Baud Rate: 300 to 19.2k
Unit Address: 0 to 99; only 1 meter can be configured at a time
SETPOINT CARDS (PAXCDS)
The PAX and MPAX series has 6 available setpoint alarm output option
cards. Only one of these cards can be installed at a time. (Logic state of the
outputs can be reversed in the programming.)
DUAL RELAY CARD: PAXCDS10
Type: Two FORM-C relays
Isolation To Sensor & User Input Commons: 2000 Vrms for 1 min.
Contact Rating:
One Relay Energized: 5 amps @ 120/240 VAC or 28 VDC (resistive load).
Total current with both relays energized not to exceed 5 amps
Life Expectancy: 100 K cycles min. at full load rating. External RC snubber
extends relay life for operation with inductive loads
QUAD RELAY CARD: PAXCDS20
Type: Four FORM-A relays
Isolation To Sensor & User Input Commons: 2300 Vrms for 1 min.
Contact Rating:
One Relay Energized: 3 amps @ 240 VAC or 30 VDC (resistive load).
Total current with all four relays energized not to exceed 4 amps
Life Expectancy: 100K cycles min. at full load rating. External RC snubber
extends relay life for operation with inductive loads
QUAD SINKING OPEN COLLECTOR CARD: PAXCDS30
Type: Four isolated sinking NPN transistors.
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Not Isolated from all other commons.
Rating: 100 mA max @ V
SAT
= 0.7 V max. V
MAX
= 30 V
QUAD SOURCING OPEN COLLECTOR CARD: PAXCDS40
Type: Four isolated sourcing PNP transistors.
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Not Isolated from all other commons.
Rating: Internal supply: 24 VDC ± 10% , 30 mA max. total
External supply: 30 VDC max., 100 mA max. each output
DUAL TRIAC/DUAL SSR DRIVE CARD: PAXCDS50
Triac:
Type: Isolated, zero crossing detection
Voltage: 260 VAC max., 20 VAC min.
Max Load Current: 1 Amp @ 25°C
0.75 Amp @ 50°C
Total load current with both triacs ON not to exceed 1.5 Amps
Min Load Current: 5 mA
Off State Leakage Current: 1 mA max @ 60 Hz
Operating Frequency: 20-400 Hz
SSR Drive:
Type: Two isolated sourcing PNP Transistors.
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Not Isolated from all other commons.
Rating:
Output Voltage: 18/24 VDC (unit dependent) ± 10%, 30 mA max.
total both outputs
QUAD FORM C RELAY CARD: PAXCDS60
Type: Four FORM-C relays
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Contact Rating:
Rated Load: 3 Amp @ 30 VDC/125 VAC
Total Current With All Four Relays Energized not to exceed 4 amps
Life Expectancy: 100 K cycles min. at full load rating. External RC snubber
extends relay life for operation with inductive loads
ALL SETPOINT CARDS
Response Time: 200 msec. max. to within 99% of final readout value (digital
filter and internal zero correction disabled)
700 msec. max. (digital filter disabled, internal zero correction enabled)
PAXH Isolation Specifications For All Option Cards
Isolation To Sensor Commons: 1400 Vrms for 1 min.
Isolation to User Input Commons: 500 Vrms for 1 min.