gefran GRM-H 15 User Manual

819XX_MAN_GRM-H_11-2022_ENG_pag. 90
INPUTS
Analogue command input (Versions with AN input type)
Function Proportional power control signal
Maximum Error 1% f.s. ± 1 scale point at an ambient temperature of 25°C/ 77°F
Thermal shift <100 ppm/° C on f.s.
Sampling time 10 ms
0-10V scale Input impedance > 500 KΩ
0-5V scales Input impedance > 500 KΩ
0-20mA or 4-20mA scale Internal Shunt Resistance: 250 Ω
Potentiometer input
Potentiometer resistance: 1 KΩ at 47 KΩ
Potentiometer power supply: + 5V (provided by GRM, max 10mA)
Linear input reading scale 0 ... 100.0 %
Common mode immunity -60V, +60V
IO-LINK input (Versions with input type I)
Function IO-LINK fieldbus communication line
Protocol
IO-LINK
Type of transmission: COM2 (38.4 kBaud)
IO-Link version: 1.1.2
SIO mode: Yes
Auxiliary output: Pin 17/ 18-19 Alarm output
Auxiliary input: Pin 14
Line voltage and load current measurement
Load current measurement function Measurement range (full-scale f.s.): 0 ... 1.5 * Irated_product
RMS current measurement accuracy
2% f.s. at room temperature of 25°C / 77°F
Thermal shift: <200 ppm/° C
Line voltage measurement function Working voltage range (full-scale f.s.): 60...660Vac
RMS voltage measurement accuracy
2% f.s. at room temperature of 25°C / 77°F
Thermal shift: <100 ppm/° C
Current and voltage sampling time 10 ms
Line frequency 50/60 Hz
Configurable I/O
I/O pin 13 configurable (only with Analog version)
Function Configurable as digital output or input
Output Function
Configurable alarm output functions (partial / total load break, line fault, thermal
alarm)
Potentiometer power supply 5V (max 10mA)
Output type
Output Type Digital output normally off (configurable as normally active).
PNP type, output voltage: 5Vdc, Iout max = 10mA (not protected against short
circuit)
Function Input (default)
Teach In HB partial breakage alarm threshold calibration (default), SCR logic
control, Proportional control via PWM, On / Off Software, Reset alarms
Input voltage range 5-30V (max 3 mA)
Voltage reading status "0" < 2 V
Voltage reading status "1" > 5 V
Input impedance 17 KΩ
PWM input Max frequency: (1, ..., 100 Hz) Max resolution 1% (0.1ms)
Configurable pin 14 input (only with IO-Link version)
Function Configurable digital input
Function Input
Teach In HB partial breakage alarm threshold calibration, Feedback Calibration,
On / Off Software, Reset alarms, Dry out start / restart, disabled (default).
Input voltage range 5-30V (max 3 mA)
Voltage reading status "0" < 2 V
Voltage reading status "1" > 5 V
Input impedance 17 KΩ
I/O pin 17 (D17 / DQ)
Function Configurable as digital output or input
Function Output (default)
SSR output retransmission (default, for two-phase / three-phase slave control)
Configurable alarm (partial / total load break, line fault, thermal alarm)
Output type
Output Type Digital output normally off (configurable as normally active).
PNP type, output voltage: Us(24Vdc)-0.7Vdc, Iout max = 30mA (not protected
against short circuit)
Function Input
Teach In HB partial breakage alarm threshold calibration, SCR logic command,
Software On / Off, Alarm reset
Input voltage range 5-30V (max 3 mA)
Voltage reading status "0" < 2 V
Voltage reading status "1" > 5 V
Input impedance 17 KΩ
OUTPUTS
Alarm output (pin 18 19)
Function - Configurable alarm output (default): Partial load break, line fault, thermal alarm
Type
Voltage free contact (solid state N.O.) max
characteristics: 30V-150mA
conduction resistance: ≤ 1Ω
COMMUNICATIONS PORTS
Porta microUSB di servizio
Functions with TTL serial cable
Only for initial product configuration, via PC.
Use a PC connected to the GRM, ONLY via the
Gefran adapter cable. The adapter powers the GRM.
Cod. F060800 (PC with USB).
Type Micro USB type B connector
Insulation TTL serial NOT isolated
Funzione Dongle NFC:
Disponibile per la configurazione, lettura di Informazioni sul prodotto e dati di
diagnostica. Utilizzare App scaricabile da PlayStore ed AppleStore e Dongle
NFC (vedi tabella accessori)
POWER (STATIC GROUP)
CATEGORY OF USE
(Tab. 2 EN60947-4-3)
AC 51: resistive or low-inductance loads
AC 55b: infrared lamps
AC56a transformers, resistive loads with high temperature coefficient
Trigger modes
OnOff - Zero crossing firing.
FCT- Fixed Cycle Time - Zero Crossing with constant cycle time (settable in
the range 1...200 sec).
BF - Burst Firing with optimised minimum variable cycle time (Zero crossing
firing).
HSC - Half Single Cycle, corresponds to a Burst Firing which handles half on/off
cycles (Zero crossing firing).
PA - load management by adjusting the power-on phase angle.
It is useful for reducing flicker with short-wave infrared loads.
Softstart ramp in Phase Angle configurable with any configured Firing mode
Delay triggering: First cycle start-up delay (only for ZC, BF, single phase
control mode) Can be set from 0 ° to 90 °.
It is useful for inductive loads (primary transformer) to avoid the current peak
that could in some cases trigger the ultra-rapid fuses for the protection of SCRs.
Feedback and Limit functions (optional)
Peak current or RMS limiting algorithms available. Feedback in current (I,I
2
),
voltage (V, V
2
) or power.
Max. rated voltage 480 V AC 600 V AC
Working voltage range 60-530Vac 60-660Vac
Non-repetitive voltage
(Surge protection level)
1200 Vp 1400 Vp
Rated frequency 50/60Hz with auto-determination
Rated current
GRM Model
15 25 25I 30 30I 40 50 60 75 90 120
15A 25A 25A 30A 30A 40A 50A 60A 75A 90A 120A
Non-repetitive over-current,
(t=20 msec)
620A 620A 1600A 620A 1600A 620A 1600A 1600A 1600A 1500A 1500A
I2t for melting (t = 1… 10msec) A
2
s 1800 1800 12800 1800 12800 1800 12800 12800 12800 11250 11250
critical dv/dt with output disabled 1000 V/μs
Rated impulse withstand voltage 4kV
Rated current in short circuit condition 5kA
Minimum Load Current: 150 mA
Voltage drop over rated current: = < 1,2Vrms
Presenza di corrente di dispersione:
< 3mA
(Maximun value with nominal Voltage and Junction temperature of 125°C /
257°F)
Dissipated power
Calculation of power dissipated by the solid state relay
Pd [W] = 1,4 * Irms
Irms = single-phase load current
Example: load current = 20Arms,
Dissipated thermal power: Pd = 20 * 1.4 = 28W
INTEGRATED DIAGNOSTICS
Advanced Diagnostics
- Power failure for: SCR open / Load interrupted / No line voltage
- Overheating alarm
SCR short circuit (current presence with OFF command).
HB (Heat Break) Alarm:
- HB alarm load interrupted or partially interrupted, up to 8 loads in parallel.
- Automatic calibration of the HB alarm threshold based on the current load level
default, alarm threshold equal to 90% of the current read during calibration,
recommended value for diagnosing a maximum of 5 equal loads in parallel).
So, if the device is left at factory settings, it can manage 2, 3, 4 or 5 loads in
parallel without reconfiguration.
Note 1: with Digital command turn ON minimum time = 50 ms to detect broken
load.
Note 2: For the proper operation of the partial load break alarm even in the
most critical conditions (8 equal loads in parallel), it is necessary that the total
current of the load (not faulty) is at least 30% of the rated current of the GRM
(on a GRM from 15A -> 4.5A)
Example: a nominal size 15A GRM commands 8 equal resistors in parallel. To
have an alarm of failure of only one of the 8 loads in parallel, the single load
must have absorption of at least 0.56A, the total load must absorb at least 4.5A
(0.56A * 8 loads).
GENERAL CHARACTERISTICS
Power supply
10… 30 V DC ± 10%, absorption 20 mA at 24 V DC
(Range from 20 to 27 V DC, Imax <150 mA at 24V with Fan active)
Indications
2 leds:
ON (Green LED): Control status SCR
STATUS (RGB LED): State of operation
Protection rating IP20
Working temperature 0...80°C (32 ... 176°F) (see deratIng curves)
Storage temperature
-20°C - +85°C (-4 ... 185°F)
average temperature in a period of 24H not higher than 35°C (95°F)
(according to EN 60947-4-3 § 7.1.1)
Maximum relative humidity 90% non-condensing
Environmental conditions of use Indoor use, maximum altitude 2000m
Installation DIN EN50022 bar or panel mount by screws
Installation requirements
Installation category II, pollution degree 2
Maximum air temperature around the device 40°C / 104°F
(for Temperature > 40°C / 104°F see derating curves)
Weight
GRM-H 15, 25A, 25I 388 g / 16.69 Oz
GRM-H 30A, 30I 388 g / 16.69 Oz
GRM-H 40, 50A 388 g / 16.69 Oz
GRM-H 60, 75A 688 g / 24.27 Oz
GRM-H 90A 796 g / 28.09
GRM-H 120A 796 g / 28.09

gefran GRM-H 15 Specifications

General

Brand	gefran
Model	GRM-H 15
Category	Controller
Language	English