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industrial heat tracing solutions
EN-RaychemNGC30UIT2Programming-AR-H5818602/16
Fig. 3.9 Setup | Circuit window mode
Relay Output Section This section defines the device/relay and the operating mode assigned to the
Circuit.
Device Address Entry Field The device address is the number assigned to a NGC-30-CRM/-CRMS
board via the rotary selector switches. Each NGC-30-CRM/-CRMS must be assigned a unique
number (no other device can share a device address whether it’s a Relay Output device or RTD
input device). All device addresses are scanned on initial startup. If devices are added after initial
startup, the user must perform a system re-scan. (For more information on scanning for devices,
see section 3.3.24 Network | Devices Window on page 56.)
Device Address Range: 0–99 (For available device addresses and specific limits, see Table
3.5 Available Device Addresses on page 54.)
IMPORTANT: If no device address is entered (0), the Circuit is limited to temperature-monitoring
and temperature- alarming only.
Relay Number Entry Field The relay number defines which of the 5 control channels on the NGC-
30-CRM/-CRMS board controls the heater’s switching device. When the display shows dashes
(---) rather than an address, no switching device has been assigned to the Circuit. For NGC-20
controllers, the relay number will always be 1.
Mode Entry List The modes are the various control schemes that control a Circuit. There are four
different control modes associated with a NGC-30-CRM panel plus one voltage monitoring mode,
and five with a NGC-30-CRMS panel plus one voltage monitoring mode.
Table 3.1 Control Modes
Modes NGC-30-CRM NGC-30-CRMS* RMC NGC-20
On/Off X X X X
Proportional X
PASC X X X X
Always On X X X X
Always Off X X X X
Voltage X X X
Monitor Only X X
*Soft Start always active with CRMS (See Soft-Start Feature information below)
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