PCC-IV Instruction Manual (rev. 0.2)
Page 2-2
Section 2 - Installation
Option Board Descriptions
Option Board Slot 1 or Slot 2
A
AIN
5 ch.
4-20 mA / 0-5 Vdc
B
IAIN
3 ch.
Isolated 4-20 mA / 0-5 Vdc
F
AIN
3 ch.
4-20 mA / 0-5 Vdc
AOUT 2 ch.
4-20 mA
Combination Board
G
TOUT 2 pair Triac Outputs, 2A 24-120 Vac
AIN
2 ch.
Pot / 0-5 Vdc / 4-20 mA
Combination Board
J
DIN
4 ch.
120 Vac, Optically-Isolated
ROUT 2 ch.
Relay Contact, 8A Inductive
Combination Board
Z
AIN
3 ch.
mV, Optically-Isolated
ZP Oxygen Analyzer
TOUT 1 ch.
Triac Outputs, 2A, 120 Vac
Combination Board
Note:
The 'Z' Option Board is described in the ZP Oxygen Analyzer Manual, it is NOT covered by this Manual.
Option Board Slot 3
S
TOUT 1 pair Triac Outputs, 2A, 24-120 Vac
Mounting Overview
PCC-IV is designed for flush mounting in an enclosure in a NEMA 13 (IP65) indoor environment. Continuous
operation is guaranteed over the 32-125 F (0-52 C) ambient temperature range without derating. The controller
should not be subjected to excessive vibration. The PCC-IV is UL508 recognized for NEMA 1 dry indoor
applications. The NEMA 13 rating is based on Preferred Instruments testing and is not third party UL508 recognized.
NEMA 13 / IP65 Environment
A NEMA 13 environment is generally defined as: Intended for indoor use primarily to provide a degree of protection
against dust, and splashed or sprayed water, oil, or non-corrosive coolant. NEMA 13 is generally equivalent to the
European IEC standard IP65.
The PCC-IV front panel and case gasket will provide NEMA 13 protection if the enclosure to which the PCC-IV is
mounted itself is designed for NEMA 13 (minimum) protection.
PCC-IV can be installed in more severe environments if the user provides additional protection that is consistent
with and/or
required for the area’s rating.
Ambient Temperature
PCC-IV is rated for continuous operation over the 32-125 F (0-52 C) ambient temperature range without derating.
A typical PCC-IV installation (in a control cabinet mounted next to an industrial packaged boiler) would not require
cabinet cooling. However, each installation should be evaluated individually to determine if the PCC-IV ambient
temperature (i.e., the control cabinet internal temperature) will exceed 125 F.
The control cabinet internal temperature is a function of the outside air temperature, the surface area of the control
cabinet, and the amount of heat released by other components inside the cabinet. A PCC-IV consumes
12 VA worst case, therefore, it releases a maximum of 75 Btu/hr. The major control cabinet manufacturers (Hoffman,
Hammond, …) include information in their catalogs to help calculate cabinet internal temperature rise (with and
without various cooling methods).
Rear Access
The PCC-IV case is 7 ¾
̎ deep behind the mounting flange; therefore, PCC-IV can be mounted in 8” or deeper
control cabinets. All field wiring connections are located behind a cover plate in the rear of the controller. Rear
access is required for installation, calibration, and troubleshooting. Routine operation is accomplished from the front
of the controller. Control strategy Blockware downloading/uploading is accomplished from either the front or the
back of the controller, as desired, based on the position of the USB programming port select jumpers, JP2 (Pins 1-
3 & 2-4 for the front jack
– Pins 3-5 & 4-6 for the rear jack).
